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1
Lismaya, Lilis, Putut Marwoto, and Sunyoto Eko Nugroho. "Utilization of Organic Waste as A Natural Detector of Formaldehyde on-Campus Snacks." Jurnal Penelitian Pendidikan IPA 10, no. 6 (2024): 3519–26. http://dx.doi.org/10.29303/jppipa.v10i6.4255.
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The aim of this research is to reduce household organic waste through the use of organic waste as a natural detector of formaldehyde content in food snacks. The organic waste used in this study was red garlic skins, dragon fruit skins and purple sweet potato skins. This research is an experimental research. The stages of the research started with the extraction of anthocyanins from the three organic wastes, direct detection of formalin and detection of food ingredients. The formalin concentrations tested were 0.5%, 1%, 2%, 5% and 25%. Detection ability can be seen from the color change between control and formalin treatment. Garlic skin produces a red extract, dragon fruit skin produces an orange extract, and purple sweet potato skin produces a deep red extract. Test results on 20 samples of food snacks around the campus using the three organic waste extracts proved that all samples contained formaldehyde in varying concentrations. The highest 50% formalin content was found in yellow noodles and meatballs. The conclusion is that purple beetle skin, dragonfruit skin, and red garlic skin can be used as natural detectors for formalin in campus snacks.
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Wahyuni, Sri, Patang Patang, and Reski Praja Putra. "Kajian Minimum Inhibitor Concentration (MIC) dan Minimum Bactericidal Concentration (MBC) Ekstrak Kulit Terong Ungu (Solanum melongena L) Sebagai Pengembangan Antibakteri Herbal." Jurnal Pendidikan Teknologi Pertanian 9, no. 2 (2023): 249–62. http://dx.doi.org/10.26858/jptp.v9i2.686.
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Purple eggplant skin contains flavonoid which are antibacterial compounds, but mostly just becomes waste, even though purple eggplant skin extract has potential to be developed as herbal antibacterial. The purpose was to examine antibacterial activity, Minimum Inhibitor Concentration, and Minimum Bactericidal Concentration purple eggplant skin extract against pathogenic bacteria. Purple eggplant skin is extracted using the maceration method with 70% ethanol. The antibacterial activity test of purple eggplant skin extract was carried out by the method of diffusion using disc paper. Determination of MIC and MBC is carried out by a dense dilution method in a pour plate, with concentrations used 0%, 1.56%, 3.13%, 6.25%, 12.5%, 25%, 50%, and 100%. The results of measuring the diameter of the inhibitory zone are Staphylococcus aureus (7.4 mm), Bacillus cereus (8.8 mm), Salmonella sp. (7.0 mm), Escherichia coli (1.7 mm). These results showed purple eggplant skin extract had a good ability to inhibit pathogenic bacteria, except E. coli (weak inhibitory power). MIC value of eggplant skin purple extract was obtained at 12.5% in each test bacteria. At this concentration, the number of colonies was able to be reduced to 1 Colony log/mL in all three test bacteria. MBC value of eggplant skin purple extract was obtained at 50%, at this concentration, no bacterial growth was found in the three test bacteria.
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Yadnya, T. G. Belawa, AA A. S. Trisnadewi, I. Ketut Sukada, and I. Gusti Lanang Oka. "The Effect of Fermented Purple Sweet Potato (Ipomoea batatas L) Skin in Diets on Feed and Anthocyanin Consumption, Carcass Characteristics, Anthioxidant Profile and Meat Texture of Bali Duck." International Research Journal of Engineering, IT & Scientific Research 2, no. 9 (2016): 57. http://dx.doi.org/10.21744/irjeis.v2i9.268.
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An experiment was carried out to determine the effect of fermented purple sweet potato (Ipomoea batatas L) skin in diets on feed and anthocyanin consumption, carcass characteristics antioxidant profile and meat texture of Bali duck.. Five treatment diets were used in a completely randomized design (CRD) consisted of control diet A (diet without containing purple sweet potato skin), diet B containing 10% purple sweet potato skin, diet C containing 10% fermented purple sweet potato skin, diet D containing 20% purple sweet potato skin, diet E containing 20% fermented purple sweet potato skin.Each treatment consisted of four replications and each replicate had five ducks. The variables observed were feed and anthocyanin consumption,slaughter weight, carcass weight, carcass percentage, carcass physical composition, meat antioxidant profile (capacity antioxidant (CA), malondialdehide (MDA), and superoxide dismutase (SOD). Experiment results showed that diets with fermented or unfermented purple sweet potatoin diets treatments B, C, D, and E increased the anthocyanin consumption, slaughter weight, carcass weight, carcass percentage and meat percentage of duck carcass but decreased their fat and skin. Fermented purple sweet potato (Ipomoea batatas L) skin in C and E increased the antioxidant capacity(AC) and superoxide dismutase (SOD) while treatment B and D were not significantly different (P>0.05) to the control group. Malondialdehide (MDA) of the duck meat in treatment B,C, and D were significantly lower (P<0.05) compared to the control diet. Treatment E significantly increased the perimesium and endomesium of meat texture , but its experiment was not significantly different to the control group. It was concluded that substitution of fermented purple sweet potato (Ipomoea batatas L) skin in diets could improve of feed and anthocyanin, carcass characteristics, antioxidant profile, and meat texture of bali duck.
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Fatimatuzahro, Dewi, Dian Ayuning Tyas, and Saifullah Hidayat. "Pemanfaatan Ekstrak Kulit Ubi Jalar Ungu (Ipomea batatas L.) sebagai Bahan Pewarna Alternatif untuk Pengamatan Mikroskopis Paramecium sp. dalam Pembelajaran Biologi." Al-Hayat: Journal of Biology and Applied Biology 2, no. 1 (2019): 1. http://dx.doi.org/10.21580/ah.v2i1.4641.
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<p><em>Purple sweet potato (Ipomea batatas L.) is a tuber that has purple meat and skin. The purple color of purple sweet potato is usually used by the community as a food coloring, while the sweet potato skin is considered only waste and disposed of. This study aims to determine whether purple sweet potato skin extract can be used as an alternative dye on microscopic observations of Paramecium sp. The research used experimental approach with post test only control group design. The process of purple sweet potato skin extraction using chemical solvents is ethanol, acetic acid and water. The extractions with three treatments were A, B, and C respectively different ratios (25: 1: 5), (15: 1: 15) and (5: 1:25). The results of microscopic observations quantitatively analyzed using Anova One Way test obtained sign. &gt; 0.05 which means the purple sweet potato skin extraction results can be used as an alternative dye for microscopic observation of Paramecium sp. Qualitative analysis of the results of observations in which treatment A shows the best dye results in coloring Paramecium sp.</em></p>
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Deswani, Deswani, Sri Djuwitaningsih, Harpolia Cartika, and Paul Malau. "Irritation Test of Cream Preparations Made from Purple Cabbage Extract Against Healthy Skin Using The Path Test Method." JURNAL INFO KESEHATAN 23, no. 1 (2025): 1–9. https://doi.org/10.31965/infokes.vol23.iss1.1458.
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Testing for skin irritation caused by new substances is a critical component of safety evaluation procedures. Pharmaceutical formulations and active ingredients intended for topical application have the potential to cause skin irritation, necessitating thorough safety assessments prior to public distribution. This study aimed to evaluate the primary irritation potential of a purple cabbage extract cream using the patch test method on healthy older adults. The experimental research involved 18 volunteers, who were administered 0.625% purple cabbage extract cream and a placebo preparation without the test substance. The test materials were applied twice daily over a period of 72 hours. Observations were conducted at baseline (0 hours) and at 24, 48, and 72 hours post-application. The degree of skin irritation was then calculated based on the recorded data. The results indicated a primary irritation index of 0.1, suggesting that the purple cabbage extract cream did not cause skin irritation. It can be concluded that the purple cabbage extract cream is safe for skin application in the tested population. Future research should explore the effects of purple cabbage cream on different skin locations, as skin sensitivity can vary across different areas of the body.
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Deswani, Deswani, Sri Djuwitaningsih, and Harpolia Cartika. "Irritation Test of Cream Preparations Made from Purple Cabbage Extract Against Healthy Skin Using The Path Test Method." JURNAL INFO KESEHATAN 22, no. 4 (2024): 858–66. https://doi.org/10.31965/infokes.vol22.iss4.1458.
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Testing for skin irritation caused by new substances is a critical component of safety evaluation procedures. Pharmaceutical formulations and active ingredients intended for topical application have the potential to cause skin irritation, necessitating thorough safety assessments prior to public distribution. This study aimed to evaluate the primary irritation potential of a purple cabbage extract cream using the patch test method on healthy older adults. The experimental research involved 18 volunteers, who were administered 0.625% purple cabbage extract cream and a placebo preparation without the test substance. The test materials were applied twice daily over a period of 72 hours. Observations were conducted at baseline (0 hours) and at 24, 48, and 72 hours post-application. The degree of skin irritation was then calculated based on the recorded data. The results indicated a primary irritation index of 0.1, suggesting that the purple cabbage extract cream did not cause skin irritation. It can be concluded that the purple cabbage extract cream is safe for skin application in the tested population. Future research should explore the effects of purple cabbage cream on different skin locations, as skin sensitivity can vary across different areas of the body.
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Denny, E. G., D. C. Coston, and R. E. Ballard. "Peach Skin Discoloration." Journal of the American Society for Horticultural Science 111, no. 4 (1986): 549–53. http://dx.doi.org/10.21273/jashs.111.4.549.
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Abstract Black, purple, and tan discolorations have been found within red-pigmented areas of the peach fruit skin. Scanning electron and light micrographs show damage caused by defuzzing and roller drying, which could facilitate entry of causal agents associated with peach skin discoloration. Comparisons of reflectance and transmittance spectra (380-700 nm) of discolored (purple) and nondiscolored (red) peaches show the mean reflectance value for discolored peaches is 100% darker than nondiscolored peaches. However, transmittance spectra of acidified extracts of discolored and nondiscolored peach skins are similar throughout these wavelengths. Extracted pigment color was altered by pH changes and metallic ion concentration. At low pH, discoloration may be caused by ion complexing with anthocyanin pigment. At high pH, discoloration may result from alkaline hydrolysis of the pigment molecule.
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Schwartz, Chelsea, Raj Watson, and David Cleaver. "A Rare Presentation of Self-Resolving Purple Fingers." SKIN The Journal of Cutaneous Medicine 7, no. 5 (2023): 1025–29. http://dx.doi.org/10.25251/skin.7.5.10.
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Achenbach syndrome is a rare, benign, self-limiting, syndrome of unknown etiology. Here, we report a 66-year-old female who presented to the dermatology clinic with waxing and waning non-palpable purpura for the last year on the volar aspect of her hands bilaterally. The patient admitted to tingling prior to the onset of the purpura and mild tenderness following presentation. The purpura would spontaneously resolve without discoloration or scarring after 2-7 days. The patient stated these episodes can occur anywhere from a few times a month to every 1-2 months. Evaluation and work-up performed by her primary care physician and rheumatologist did not reveal an explanation for her symptoms. Two punch biopsies were performed and revealed a perivascular lymphocytic infiltrate with extravasted erythrocytes and pigmented macrophages consistent with a pigmented purpuric dermatosis. Immunofluorescence was negative. The diagnosis of Achenbach syndrome was made by diagnosis of exclusion. Reassurance was provided to the patient and she was given DerMend Bruise formula cream, which contains retinol, glycolic acid, arnica oil, ceramides, niacinamide, and phytonadione, to monitor for improvement of her symptoms. It is important for healthcare providers to be aware of the benign nature of this syndrome to be able to provide reassurance to patients and avoid an unnecessary, more invasive evaluation.
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Parkins, G. J., R. Jackson, and G. R. Wylie. "Purple skin nodules - what lies beneath?" Journal of the European Academy of Dermatology and Venereology 30, no. 5 (2015): 857–59. http://dx.doi.org/10.1111/jdv.13026.
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Budianto, Nugroho Eko Wirawan, and Hairullah Hairullah. "Difference of Effectiveness Acarbose with Ethanol Extract Purple Eggplant’s Peel (Solanum melongena L) to Reduce Blood Sugar Levels in White Rat (Rattus norvegicus) Induced by Sucrose." Jurnal Ilmiah Kedokteran Wijaya Kusuma 6, no. 2 (2017): 14. http://dx.doi.org/10.30742/jikw.v6i2.54.
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Acarbose is an oligosaccharide human made who is a competitive inhibitor acarbose and can inhibit the action of the enzyme α-glucosidase, causing a slowdown in the digestion of carbohydrate compounds. Purple eggplant skin is included in the flavonoid compound. Purple eggplant skin as well as an antioxidant that can control blood glucose levels and prevent complications of diabetes. Purple eggplant skin contains flavonoid kaempferol and has the effect of inhibiting the enzyme alpha-glucosidase. Based on these researchers want to know the difference in effectiveness between the ethanol extract of purple eggplant skin and acarbose to decrease blood sugar levels of mice. The study population using white rats with a total sample size of 30 rats. Research data analysis using One Way Anova Test. Methods: Male rats strain Wistar were divided into 5 groups. 1) Control (CMC Na 1 ml io), 2) Group 1 (The ethanol extract of 50 mg / kg in the CMC Na io), 3) Group 2 (The ethanol extract 100 mg / kg in CMC Na io), 4) Group 3 (the ethanol extract 200 mg / kg in the CMC Na io), 5) Group 4 (Acarbose 4.5 mg / kg in distillated water io). The result showed ethanol extract of purple eggplant skin in group 2 showed the best effectiveness in lowering blood sugar levels of white rats by oral sucrose injection. And there is no significant difference between the effectiveness of the ethanol extract of purple eggplant skin and acarbose in lowering blood sugar levels of white rats by oral sucrose injection.
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ZHOU, Xiaohui, Songyu LIU, Yaping LIU, et al. "Extensive transcriptome changes underlying the fruit skin colour intensity variation in purple eggplant." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 49, no. 3 (2021): 12434. http://dx.doi.org/10.15835/nbha49312434.
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Fruit skin colour intensity is one of the most important economic traits of purple eggplant. A wide diversity for fruit skin colour intensity exists in purple eggplant and the accumulation of anthocyanins and chlorophylls of fruit skin mainly affected colour intensity. However, limited information is available contributing to the molecular mechanisms underlying fruit skin colour intensity variation in purple eggplant. In the present study, variation of two purple eggplant advanced lines EP26 and EP28, with different fruit skin colour intensity was investigated. Higher anthocyanin contents and lower chlorophyll contents were observed in EP26 with deeper fruit skin colour intensity at two developmental stages. Comparative transcriptome analysis of EP26 and EP28 identified a total of 2218 differential expressed genes (DEGs) at two developmental stages. Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that these DEGs were mainly involved in flavonoid biosynthesis and photosynthesis. In addition, a total of 131 transcription factors including MYB, bHLH, WRKY, and NAC exhibited dynamic changes, which might be responsible for the variation of fruit pigments accumulation between EP26 and EP28. Taken together, these results expand our knowledge of molecular mechanisms underlying fruit skin colour intensity variation in eggplant, which allowing for improvement of fruit coloration in eggplant breeding.
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Gafar, Fahira, Yoakhim Y. E. Oessoe, and Jolanda Ch E. Lamaega. "Utilization of purple yam skin (Ipomoea batatas L.) in the making of nata de batatas." Jurnal Teknologi Pertanian (Agricultural Technology Journal 13, no. 1 (2023): 1–7. http://dx.doi.org/10.35791/jteta.v13i1.50268.
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Nata de batatas is a product of purple sweet potato peel. The presence of anthocyanin compounds in purple sweet potato skin makes this food very attractive to be processed into nata products that have functional value. The purpose of this research was to determine the yield of nata from purple sweet potato peel made with variations in the percentage of purple sweet potato peel extract and the percentage of coconut water and pellicle thickness, evaluate organoleptic properties including texture, color, aroma, taste, and determine anthocyanin levels. The results showed that the highest nata yield was 70.08%. The thickness of the largest 1.26 cm. The best anthocyanin analysis in nata was 0.47 mg. The organoleptic test showed that the color percentage of purple sweet potato peel extract and the percentage of coconut water were significantly different while the texture, aroma and taste were not significantly different.
 Keywords: nata de batatas, purple sweet potato skin, coconut water, anthocyanin
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Arifin, Ahmad Aris, Sucika Armiani, and Herdiyana Fitriani. "Isolasi Antosianin Kulit Terong Ungu (Solanum melongena) sebagai Biosensor Pendeteksi Kandungan Bahan Kimia pada Makanan." Bioscientist : Jurnal Ilmiah Biologi 10, no. 1 (2022): 361. http://dx.doi.org/10.33394/bioscientist.v10i1.5120.
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Anthocyanin is one of the color pigments natural plant. One source of anthocyanin is purple eggplant, production in West Nusa Tenggara reached 62.408 tons in 2020. Generally, purple eggplant is only used as a source of food, even though the skin has great potential for research development. Therefore, this study aims to maximize the utilization of purple eggplant skin by innovating to develop a food safety testing biosensor. This type of research is true experiment researche using a qualitative approach, and using a Completely Randomized Design (CRD) consisting of 10 treatments and 3 replications. The parameter observed was the color change on whatmann paper no 42 before and after being dripped with the tested chemical solution. Data analysis using Spectrophotometer test and chemical selectivity test. The results showed that of the 5 types of chemicals tested, sodium nitrite had the most obvious color change when reacted with purple eggplant skin anthocyanins, at a concentration of 5% before being dropped it was light brownish in color, after dripping it was yellowish orange, and dark orange at a concentration of 10%. So from these results indicate that anthocyanins purple eggplant skin potential to be developed as a biosensor natural for food safety testing, particularly in detecting the use of sodium nitrite to exceed the threshold for processed meat products.
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Attal, Houssam. "Newborn Infant With Multiple Purple Skin Nodules." Archives of Dermatology 132, no. 3 (1996): 346. http://dx.doi.org/10.1001/archderm.1996.03890270123021.
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Attal, H. "Newborn infant with multiple purple skin nodules." Archives of Dermatology 132, no. 3 (1996): 343. http://dx.doi.org/10.1001/archderm.132.3.343.
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Wulandari, Wulandari, and Ahmad Fuad Masduqi. "POTENTIAL FLAVONOID FRACTIONS OF PURPLE EGGPLANT SKIN (SOLANUM MELONGENA VAR. SERPENTINUM L. ) AS AN ANTIOXIDANT." CENDEKIA EKSAKTA 9, no. 1 (2024): 33–37. https://doi.org/10.31942/ce.v9i1.11721.
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Antioksidan merupakan senyawa yang dapat digunakan untuk mengatasi radikal bebas dengan cara menetralisirnya sehingga dampak negatif yang ditimbulkannya dapat dihindari. Antioksidan dapat diperoleh dari dalam tubuh maupun dari luar, misalnya senyawa aktif yang terdapat pada tumbuhan seperti terong ungu. Kulit terong ungu diketahui mengandung senyawa aktif fenolik, flavonoid, antosianin, saponin, dan alkaloid. Tujuan penelitian ini adalah untuk mengetahui potensi antioksidan fraksi flavonoid kulit terong ungu. Metode ekstraksi dilakukan dengan cara remaserasi; fraksinasi dilakukan dengan metode kromatografi kolom vakum dengan pelarut n-heksana, etil asetat, dan metanol dengan berbagai perbandingan. Metode DPPH digunakan untuk menguji antioksidan dari sampel. Hasil fraksinasi kulit terong ungu mengandung senyawa flavonoid, dan aktivitas antioksidan fraksi flavonoid kulit terong ungu sebesar 275,218 ppm.Kata kunci: fraksi, flavonoid, kulit terong ungu, antioksidan                                                                   AbstractAntioxidants are compounds that can be used to deal with free radicals by neutralizing them so that the negative effects they cause can be avoided. Antioxidants can be obtained from inside the body or from outside, for example active compounds found in plants such as purple eggplant. Purple eggplant skin is known to contain active phenolic compounds, flavonoids, anthocyanins, saponins, and alkaloids. The aim of this research was to determine the antioxidant potential of the flavonoid fraction of purple eggplant skin. The extraction method is carried out by remaceration; fractionation is carried out by vacuum column chromatography method with n-hexane, ethyl acetate, and methanol as solvents in various proportions. The DPPH method is used to test antioxidants from samples. The results of purple eggplant skin fractionation contain flavonoid compounds, and the antioxidant activity of the purple eggplant skin flavonoid fraction is 275.218 ppm.Key Words: fractions, flavonoids, purple eggplant skin, antioxidants
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Nurul Magfira Saleh, Nur Al-faida, and Gandhi Pratama. "Innovation in Making Pia Cake Skin with the Addition of Purple Sweet Potato (Ipomea Batatas L) in the Village of Kimi, Nabire District." International Journal of Public Health 1, no. 3 (2024): 183–95. http://dx.doi.org/10.62951/ijph.v1i4.175.
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Purple sweet potato is one type of tuber. Organoleptic test is a test of a food ingredient based on the level of preference. Shelf life is a time span on a product. Objective: To determine the level of consumer preference and shelf life of pia cake skin with the addition of purple sweet potato (Ipomea Batatas L). Methods: Quantitative research with a completely randomized experimental design (CRD). Panelists in this study were 30 untrained panelists, 15 moderately trained panelists. Results: It is known that the results of research conducted on pia cake skin added purple sweet potato (Ipomea Batatas L) have an effect on the taste p-value 0.01 (<0.05), there is an effect on the aroma p-value 0.02 (<0.05), there is an effect on the color p-value 0.00 (<0.05), there is an effect on the texture p-value 0.00 (<0.05), for the shelf life of pia cake skin in treatments X, Y, V and Z at cold temperature and room temperature there is a relationship p-value <0.05. Conclusion: Based on the results of the study, it can be concluded that there are differences in the variables of taste, aroma, color, texture and shelf life of pia cake skin with the addition of purple sweet potato (Ipomea Batatas L) in Kimi Village, which obtained p-value <0.05. Suggestion: There is a need for skills, knowledge related to purple sweet potatoes to increase creativity and the economy of the community.
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Budaraga, I. Ketut, and Rera Aga Salihat. "Antioxidant Activity of ‘Broken Skin’ Purple Rice, ‘Skinned’ Purple Rice, and Purple Rice Stem Organically Cultivated in Indonesia." International Journal on Advanced Science, Engineering and Information Technology 10, no. 5 (2020): 2132. http://dx.doi.org/10.18517/ijaseit.10.5.9634.
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Wulandari, Suci, Ayu Renta Niasari Silaen, and Siti Wahyuni. "FORMULATION OF SOLID BATH SOAP PREPARATIONS OF PURPLE SWEET POTATO ETHANOL EXTRACT (IPOMEA BATATAS L) AS A SKIN MOISTURIZER." JURNAL FARMASIMED (JFM) 4, no. 2 (2022): 80–84. http://dx.doi.org/10.35451/jfm.v4i2.1018.
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Soap is a surfatctant used to clean or wash something that is available in solid and liquid form. Soap can be useful as a cleaning tool, this is because soap molecules contain polar (bonded with water) and non-polar (bonded with oil) groups so that they can clean grease or dirt that is not lifted by water. Soap is made by applying a saphonification reaction using olive oil, NaOH, and purple sweet potato extract as the basic ingredients. The addition of NaOH concentration an affect the weight of the soap produced. Purple sweet potato is a sweet potato that has natural dyes a anthocyanins that function as antioxidant. The purpose of this study was to obtain a solid bath soap formulation with purple sweet potato extract. Furthermore, purple sweet potato extract was formulated based on formula with concentration difference of 3,5%, 4,5%, 5,5%. Furthermore, preparations have been made with organoleptic tests, pH tests, and foam stability tests. It can be concluded that purple sweet potato extract can be used as a solid soap preparation and there is a concentration effect on the organoleptic test soap quality, pH, foam stability and moisture content. The preparation of solid bath soap from purple sweet potato ethanol extract has the ability to moisturize the skin, and the highest concentration obtained at a concentration of 5,5% with 57,83% moisture can moisturize the skin and at concentration of 4,5% with 48,3% humidity as well. Can moisturize the skin but with a moderate level of humidity, and at a concentration of 3,3% with 43,00% humidity with a lower humidity level.
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Wijayanti, Ernanin Dyah, Anna Safitri, Dian Siswanto, and Fatchiyah Fatchiyah. "Indonesian Purple Rice Ferulic Acid as a Candidate for Anti-aging through the Inhibition of Collagenase and Tyrosinase Activities." Indonesian Journal of Chemistry 23, no. 2 (2023): 475. http://dx.doi.org/10.22146/ijc.79819.
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Skin aging is associated with decreased skin firmness and excessive pigmentation, which is caused by the activity of aging enzymes. This process can be prevented with powerful antioxidants from nature, such as ferulic acid which is abundant in rice. This study examines the nutritional content and phytochemicals of Indonesian purple rice and evaluates the bioactivity of ferulic acid as an anti-aging agent. Indonesian purple rice has less fat than black and white rice, more amino acids involved in aging regulation, and a similar phytochemical profile to black and white rice. Indonesian purple rice has a lower concentration of ferulic acid (4.114 ± 0.013 mg/L) than black rice but shows strong reducing power (IC50 9.35 ± 1.95 µg/mL), high anti-tyrosinase (IC50 59.57 ± 3.60 µg/mL), and moderate anti-collagenase activities (IC50 74.18 ± 3.11 µg/mL). This study supports the use of Indonesian purple rice as a promising active ingredient in natural anti-aging cosmetics.
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Egred, M., and E. Rodrigues. "Purple digit syndrome and warfarin-induced skin necrosis." European Journal of Internal Medicine 16, no. 4 (2005): 294–95. http://dx.doi.org/10.1016/j.ejim.2004.11.014.
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Steuer, Alexa B., and Jeffrey M. Cohen. "The color of skin: purple diseases of the skin, nails, and mucosa." Clinics in Dermatology 37, no. 5 (2019): 528–47. http://dx.doi.org/10.1016/j.clindermatol.2019.07.016.
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Chetan, Ramesh Sangati, and Kudari Ananda. "Steven's Johnson Syndrome: A Case Report and Application of Lydia E. Hall's Core, Care, Cure, Theory with Nursing Process Approach." Research & Review: Management of Emergency and Trauma Nursing 1, no. 2 (2019): 5–10. https://doi.org/10.5281/zenodo.3251676.
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Steven’s–Johnson syndrome is abbreviated as SJS and is also medically recognized or it is also known as Lyell's syndrome, toxic epidermal necrolysis, and Stevens-Johnson syndrome toxic epidermal necrolysis spectrum. It's usually due to the reaction of medication or an infection. Later, it begins with flu-like symptoms, like Fever, unexplained widespread skin pain, a red or purple skin rash that spreads, blisters on your skin and the mucous membranes. To find out the Steven’s-Johnson syndrome clinical systemic examination is must, in which skin biopsy is important diagnostic tool to find the cause along with skin or oral culture as well as imaging study which is depending on the client symptoms and also blood investigation have legendary role to find the Steven’s-Johnson syndrome. If it was caused by a medication client or victim should permanently avoid those drugs and supportive care should be taken for the client.
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Mamay, Mamay. "PENGGUNAAN EKSTRAK KAYU SECANG DAN KOL UNGU PADA MEDIA MANITOL SALT AGAR UNTUK MENUMBUHKAN Staphylococcus." Klinikal Sains : Jurnal Analis Kesehatan 10, no. 1 (2022): 62–72. http://dx.doi.org/10.36341/klinikal_sains.v10i1.2528.
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Mannitol Salt Agar (MSA) is a selective and differential medium for isolating Stapylococcus bacteria, distinguishing Staphylococcus aureus bacteria from other species from the ability of mannitol to ferment which changes the color of the phenol red indicator from red to yellow. The use of synthetic indicators that are not environmentally friendly and difficult to decompose can be replaced with natural indicators, including the use of secang wood extract (Caesalpinia sappan L.) and purple cabbage (Brasicca oleraceae). The research was conducted using a descriptive method which describes the color changes of the modified mannitol salt agar (MSA) media of secang wood and purple cabbage extract after being planted with bacteria. Staphylococcus aureus and Coagulation Negative Staphylococcus (CoNS) bacteria were isolated from acne-prone skin. The growth of Staphylococus aureus changed the color of the modified MSA medium from red to yellow for the secang wood extract and the color change from blue to pink for the purple cabbage extract. The growth of CoNS bacteria changed the color of the modified MSA medium from red to red-orange for the secang wood extract and the color change from blue to blue-purple for the purple cabbage extract. Both bacteria thrived on purple cabbage modified MSA media. From this study, it was concluded that secang wood extract and purple cabbage could be used as natural indicators of modified MSA in growing Staphylococcus isolated from the skin.
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Rahmah Kurnia Ramdan, Siti, and Resi Lestari. "Determination of Anthocyanin Content of Purple Sweet Potato (Ipomea batatas L) Extract Using the Differential pH Method." JURNAL KESEHATAN STIKes MUHAMMADIYAH CIAMIS 10, no. 2 (2023): 65–70. http://dx.doi.org/10.52221/jurkes.v10i2.371.
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Purple sweet potato (Ipomea batatas L) is a type of tuber that has many benefits in the food and health .he purple color in sweet potatoes is caused by the presence of anthocyanin purple pigments that spread from the skin to the tuber flesh. The content of sweet potato anthocyanins depends on the intensity of the color of the tubers. The purple the color of the tubers, the higher the anthocyanin content. Anthocyanins have various health benefits, namely as antioxidants, anti diabetic and other benefits, namely as natural dyes.This study aims to determine the levels of anthocyanins in purple sweet potato extract by using Differential pH method. From the research results, it can be concluded that the anthocyanin content of purple sweet potato (Ipomea Batatas L) is 4.26 mg/liter.
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Sutrisno, Imam, Nila Prasetiaswati, Febria Cahya Indriani, and Joko Restuono. "Pendekatan Preferensi sebagai Umpan Balik pada Calon Varietas Unggul Baru yang Berdaya Saing." Proceedings Series on Physical & Formal Sciences 4 (November 17, 2022): 61–68. http://dx.doi.org/10.30595/pspfs.v4i.484.
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Purple sweet potato farming in Banyuwangi as a mainstay commodity to support farmers' income. The local variety TW became the preferred local variety, but farmers began to complain about the decline in productivity. These problems need an effort to improve the use of local varieties in the use of superior varieties in restoring the productivity level of purple sweet potato to its original state. Thus, it is necessary to dame plots of prospective superior varieties to obtain farmer's assessment and preferences before purple sweet potato clones are released into varieties that have legality as VUB. The results showed that farmers and traders liked the skin and tuber shape of MSU 1001-15 and MSU 1002-07 clones. The reasons farmers chose the two clones were because: 1) they had a bright color and rather thick skin, 2) the shape of the large tubers was not too round and elongated, and the yield was high. The value of purple sweet potato farming in Banyuwangi is economically feasible in terms of marketing and income value which has a significant advantage.
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Vales, M. I., C. R. Brown, S. Yilma, et al. "Purple Pelisse: A Specialty ‘Fingerling’ Potato with Purple Skin and Flesh and Medium Specific Gravity." American Journal of Potato Research 89, no. 4 (2012): 306–14. http://dx.doi.org/10.1007/s12230-012-9254-3.
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He, Miaomiao, Xinping Ma, Yun Zhou, Fang Wang, Guonan Fang, and Jian Wang. "Combined Metabolome and Transcriptome Analyses Reveals Anthocyanin Biosynthesis Profiles Between Purple and White Potatoes." International Journal of Molecular Sciences 25, no. 23 (2024): 12884. https://doi.org/10.3390/ijms252312884.
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Colored potatoes with red and purple skin or flesh possess significant nutritional value and health benefits due to their rich anthocyanin content. To investigate the genetic mechanisms underlying color formation, the high-anthocyanin-content purple-skinned and purple-fleshed potato line 15-12-16, and the white-skinned and white-fleshed Xiazhai 65 variety were used for ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) analysis, which was conducted to identify and quantify anthocyanins. RNA sequencing was performed to analyze the transcriptome. The results indicated a significant upregulation of genes within the anthocyanidin biosynthesis pathway in the purple potato, while these genes were either downregulated or absent in the white potato. The bHLH, MYB, and WRKY gene families exhibited a greater number of regulatory members, suggesting their pivotal role in color formation. Integrated analysis of the transcriptional and metabolic revealed that 12 differentially expressed genes (DEGs) related to the anthocyanidin biosynthetic had a significant correlation with 18 anthocyanin metabolites. Notably, the key gene St5GT in the anthocyanidin biosynthesis pathway was markedly upregulated in the purple skin and flesh. Furthermore, the overexpression of St5GT (PGSC0003DMG400004573) in tobacco contributed to anthocyanin accumulation. The expression of 10 DEGs was validated through quantitative real-time PCR. In conclusion, these findings provide new insights into anthocyanin biosynthesis and accumulation in purple potatoes, offering valuable candidate genes for the future breeding of colored potatoes.
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Yousefian, Faraz, Liliana Espinoza, Sarah Berger, Sandra Osswald, and Frank Petr. "Tophaceous Gout on Ear Imitating Squamous Cell Carcinoma." SKIN The Journal of Cutaneous Medicine 6, no. 4 (2022): 321–23. http://dx.doi.org/10.25251/skin.6.4.9.
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We report a case of tophaceous gout occurring in a Hispanic 69-year-old immunocompetent man. The patient presented with a 0.8 cm pink, purple, and brown dome-shaped papule on the right superior helix of the ear. The lesion was tender to palpitation. A deep shave biopsy was performed and the histological findings demonstrated pseudoepitheliomatous hyperplasia overlying large dermal deposits of pink, hyalinized feathery material surrounded by mild granulomatous inflammation. This finding supported the diagnosis of tophaceous gout rather than the clinical findings imitating squamous cell carcinoma. Concurrently, the patient received an intralesional Kenalog (ILK) injection to suppress any existing or ensuing inflammation. Treatment of the residual lesion was achieved via curettage and electrodesiccation.
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Laksmiani, N. P. L., I. G. P. Putra, I. P. W. I P. W. Nugraha, I. W. Suwartawan, and N. K. S. Ani. "STUDI POTENSI SIANIDIN DAN PEONIDIN DARI UBI JALAR UNGU (ipomoea batatas L.) SEBAGAI AGEN DEPIGMENTASI SECARA IN SILICO." Jurnal Kimia 13, no. 1 (2019): 34. http://dx.doi.org/10.24843/jchem.2019.v13.i01.p06.
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Hyperpigmentation is caused by enhancement of melanin production that causes skin darkening. Purple sweet potato is one of the plants that is potentially developed as skin depigmentation agent because it contains anthocyanin. The most common types of anthocyanins in purple sweet potato are cyanidin and peonidin which are in vitro proven to be used as skin lightening. The objective of this study is to determine the potential of cyanidin and peonidin as skin depigmentation agent against target protein D-Dopachrome taumerase through in silico molecular docking method. The research steps include the preparation of target protein using Chimera 1.10.1 program, optimization of cyanidine and peonidin 3D structures using Hyperchem 8 program, validation of molecular docking method, and docking of cyanidine and peonidine on target protein using Autodock 4.2 program. The bond energy between cyanidin and peonidin with the target protein D-Dopachrome taumerase are -7.75 kcal / mol and -8.38 kcal / mol. The cyanidin and peonidin bond values ??are smaller than the native ligand, suggesting that the bond between the test compound (cyanidin and peonidin) with the target protein are stronger and more stable than the native ligand, so that the affinity of the test compound was greater than the native ligand. This suggests that the cyanidin and peonidin compounds in purple sweet potato have potential as a depigmentation agent by inhibiting D-Dopachrome taumerase protein.
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Vasudevan, A. R. "Purple skin and a swollen thigh in an alcoholic." Postgraduate Medical Journal 78, no. 921 (2002): 430. http://dx.doi.org/10.1136/pmj.78.921.430.
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Cedirian, Stephano, Alessio Natale, Yuri Merli, Cosimo Misciali, Bianca Piraccini, and Michela Starace. "Wounds Resulting From Intradermal Injection of Sodium Hypochlorite: A Case Report." Wounds: a compendium of clinical research and practice 36, no. 12 (2024): 407–9. https://doi.org/10.25270/wnds/24071.
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Background. Caustic substances can inflict severe damage on tissues upon contact. Knowledge about skin damage caused by sodium hypochlorite is quite limited, with only a few reports available in the literature. Case Report. A 79-year-old female with severe cognitive decline presented with multiple skin ulcerations that were covered by a blackish-greyish eschar and surrounded by a purple erythematous halo. During the medical examination, in a moment of clarity the patient confessed to self-inflicting the wounds through injections of bleach at night. Analysis of the liquid beneath the eschar from the ulcer swab and the histological examination confirmed the compatibility of lesions with the injection of sodium hypochlorite. Conclusion. Intradermal injection of sodium hypochlorite can cause severe damage to the skin tissue, with rapid formation of ulcerations covered by a blackish-greyish eschar. The surrounding skin may have an erythematous, swollen appearance and a purple-colored halo around it. Moreover, for a patient with a neuropsychiatric medical history, negative laboratory findings, or irregular skin lesions, self-induced ulcerations should always be considered in the differential diagnosis.
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N, Bhanushree, Partha Saha, BS Tomar, et al. "Genetic analysis and identification of molecular marker linked to the gene for fruit skin colour in eggplant (Solanum melongena L.)." Vegetable Science 45, no. 02 (2018): 149–53. http://dx.doi.org/10.61180/4em4mk71.
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Eggplant or brinjal is one of the most important Solanaceous crop cultivated widely throughout the . The dark purple coloured fruit is preferred by consumer due to high anthocyanin content. The degree of pigmentation is unstable, possibly due to influence of environment, growth stage of fruit, etc. The present investigation was carried out to know the genetics of fruit colour and also to identify SSR marker linked to the trait. Cross was successfully attempted between Pusa Safed Baingan 1 (white coloured fruit) × Pusa Uttam (dark purple coloured fruit) to develop F1. A single F1 plant was selfed to develop 168 F2 plants and also backcross (36 BC1P1, 33 BC1P2) progenies developed. The skin colour of parents, F1, backcross and F2 plants was evaluated at edible maturity stage and compared with RHS colour chart. Bulk segregant analysis (BSA) was carried out to identify SSR marker linked to the gene for fruit skin colour. Segregation of fruit colour was analyzed by Chi square (ë2) test for goodness of fit. The fruit of F1 plants was intermediate revealed incomplete dominance. Out of 168 F2 plants, 125 were purple coloured, 31 green and 12 white which clearly segregated into 12:3:1 (P:G:W) ratio suggesting dominant epistasis with ë2 value of 0.28 (P=0.80-0.90). The BC1P1 (Pusa Safed Baingan 1 backcrossed with F1) showed 15 purple coloured, 11 green coloured and 10 white coloured which segregated in 2:1:1 ratio. Among the 18 parental polymophic SSR markers, only one marker (emg21I17165/200) was found to be polymorphic in BSA.This marker is segregated in 1:2:1 ratio suggesting cosegregation and linked with the gene for fruit skin colour. The result will be very useful in designing breedingstrategies for developing dark purple coloured variety in eggplant and also the identified SSR marker will be useful in marker assisted breeding.
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Laksmi, I. Gusti Ayu Agung Mini, I. Gusti Ayu Agung Praharsini, I. G. A. A. Dwi Karmila, Luh Made Mas Rusyati, Nyoman Suryawati, and Ketut Kwartantaya Winaya. "Effect of 8% Purple Sweet Potato Extract Cream on Wrinkle Reduction, Skin Moisture, and Elasticity." Berkala Ilmu Kesehatan Kulit dan Kelamin 37, no. 1 (2025): 1–8. https://doi.org/10.20473/bikk.v37.1.2025.1-8.
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Background: Purple sweet potato has been shown to contain anthocyanins, polyphenols, flavonoids, and tannins that act as antioxidants and have the potential to correct signs of aging in the skin, such as wrinkles, lack of hydration, and pigmentation. Purpose: to known the potential of 8% purple sweet potato extract for wrinkles, moisture, and elasticity. Methods: A one-group experimental study with pre and post-test assessment. The subject is women with photoaging aged 30-45 years. A pre-test was conducted by examining wrinkles using the Glogau scale and a simple A-one scanner, treatment with 8% purple sweet potato extract cream for 6 weeks, and then a post-test at the end of the 6th week to check wrinkles, moisture, and elasticity using a simple A-one scan. Statistical tests using the SPSS program, version 25.0. The analysis performed was descriptive statistical and comparative analysis using a paired T test. Result: A total of 25 respondents with a mean age ± SD of 38.22 ± 4.23 years, the most Glogau scale in type 2 is 22 respondents (88%), the most sun exposure for 30 minutes per day is 14 respondents (56%). The degree of wrinkles decreased after treatment -4.960±1.353 [95% CI -7.681-(-2.239); P=0.001]. The degree of moisture increased after treatment 8.840±2.990% (95% CI 2.829-14.851; P=0.005. The degree of elasticity increased after treatment 14.840±4.623 (95% CI 5.544-24.136; P=0.002). Conclusion: 8% purple sweet potato extract can reduce the degree of wrinkles, improve the degree of skin moisture, and improve the degree of skin elasticity.
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Sanín-Guana, Antonio, and Mark Lebwohl. "Ustekinumab in the Treatment of Erythema Nodosum with Underlying Crohn’s Disease: A Case Report." SKIN The Journal of Cutaneous Medicine 6, no. 2 (2022): 149–51. http://dx.doi.org/10.25251/skin.6.2.10.
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Erythema nodosum (EN) is a septal panniculitis characterized by raised, tender, red or purple lesions with a diameter of 1-5 cm. It is commonly treated with corticosteroids and can be an extra-intestinal manifestation of Crohn’s disease (CD). CD can be treated with ustekinumab, a monoclonal antibody that targets the p-40 subunit of the interleukin-12 (IL-12) and interleukin-23 (IL-23). A 78-year-old woman with erythema nodosum and Crohn’s disease presented with multiple erythematous nodules, which had been recurring on both of her legs for decades. The patient had failed many traditional EN treatments and was prescribed off-label ustekinumab, resulting in resolution of EN. This finding suggests that ustekinumab may be a potential treatment for EN in patients who also have CD.
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Brudzyńska, Patrycja, Marzanna Kurzawa, Alina Sionkowska, and Michel Grisel. "Antioxidant Activity of Plant-Derived Colorants for Potential Cosmetic Application." Cosmetics 9, no. 4 (2022): 81. http://dx.doi.org/10.3390/cosmetics9040081.
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Application of plant-derived colorants in products, i.e., cosmetics or food, apart from imparting the desired color without harming the environment, may provide other benefits. Valuable ingredients in cosmetic formulations include antioxidants showing an advantageous effect on the skin by neutralizing free radicals that accelerate the aging process and cause skin defects. Antioxidant activity can be determined by chemical-based methods. The aim of this study was to determine the antioxidant activity of plant-derived colorants (purple and red colorant) by two methods: CUPRAC and DPPH free-radical scavenging activity. Antioxidant activity evaluation using both methods for colorants samples was also performed after 5, 15, 30, and 60 min of exposure to UVC irradiation. The results obtained by CUPRAC method were for purple and red colorant unexposed samples as follows: 6.87 ± 0.09 and 4.48 ± 0.14 mg/100 mg colorant expressed as caffeic acid equivalent, respectively. UVC treatment did not affect the results of the antioxidant activity for red colorant and for the purple one only a slight influence was observed. DPPH free-radical scavenging activity for unexposed samples was 70.06 ± 7.74% DPPH/100 mg colorant for the red colorant and 96.11 ± 3.80% DPPH/100 mg colorant for the purple one.
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Afandy, Moh Azhar, Siti Nuryanti, and Anang Wahid M. Diah. "Ekstraksi Ubi Jalar Ungu (Ipomoea batatas L.) Menggunakan Variasi Pelarut Serta Pemanfaatannya Sebagai Indikator Asam-Basa." Jurnal Akademika Kimia 6, no. 2 (2017): 79. http://dx.doi.org/10.22487/j24775185.2017.v6.i2.9237.
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Purple sweet potato (ipomoea batatas L.) is one source of carbohydrate. Purple sweet potato contains vitamins and minerals that needed by humans such as vitamin A, vitamin C, calcium, and iron. The sweet potato with purple flesh is widely used as natural dyes which are called anthocyanins. The study aim was to determine a suitable solvent to extract the purple sweet potato. Variation of solvent used namely methanol, methanol acidified with HCl 1% and solvent fractionation (n-hexane, ethyl acetate, and methanol). The extraction phase was divided into two, for flesh and for the skin of the purple sweet potato. The extraction results were then compared with phenolphthalein indicator and a methyl orange on acid-base titration. The results showed that the methanol acidified with HCl 1% provided a more stable color changes in acid-base testing, and the testing of phosphate buffer pH 1-12. Purple sweet potato extracts can be used as an acid-base indicator because it gave similar results with comparative indicators, phenolphthalein, and methyl orange.
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Rouw, Ronald Marvin, Randy Frank Rouw, and Robi Panggarra. "Avena Pasta Roll: Healthy Product from Oatmeal Flour as the Wheat Flour Substitute." Khaliya Onomiyea: Jurnal Abdimas Nusantara 1, no. 1 (2023): 1–9. http://dx.doi.org/10.61471/ko-jan.v1i1.11.
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The use of purple sweet potato as a natural colour extract in food processing is one of the food industry’s efforts to draw customer attention, and its use is deemed healthier for eating, as shown in processed food Gyoza. Wheat flour, cornstarch, tapioca flour, and purple sweet potatoes that have been boiled to retain the atocyanin chemicals and as natural colours are the main ingredients in manufacturing Gyoza skin (dumpling). Organoleptic tests on aroma, taste, texture, and color were employed as the research approach. The findings revealed that 22 respondents thought the Purple Gyoza product was satisfactory and quite appealing for customer consumption when considering the taste and correct processing procedure.
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Gde Putra Wiraguna, Anak Agung, Rini Dianasari, and Wimpie Pangkahila. "The Topical Skin Application of Purple Corn Extract (Zea Mays) Inhibited the Increase in MMP-1 Levels and Decreased Collagen in Wistar Rats (Rattus Norvegicus) Exposed to UV-B Rays." Biomedical and Pharmacology Journal 12, no. 1 (2019): 297–304. http://dx.doi.org/10.13005/bpj/1641.
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Formation of free radicals is an important mechanism causing skin aging. Free radicals are highly reactive molecules with unpaired electrons which can directly disrupt various structures of cell membrane, lipids, proteins, and DNA. Antioxidant is a substance which can give protection from endogenous and exogenous oxidative pressure caused by free radicals. Purple corn contains phenolic acid, vitamin C, and anthocyanin. Anthocyanin is the main contained substance in purple corn and acts as antioxidant and able to inhibit aging process on skin surface of mice exposed with UV-B ray. This research aims to prove the effectivity of administration of purple corn extract cream on inhibiting the elevation of MMP-1 level and the decrease of collagen amount on Wistar mice (Rattus norvegicus) exposed with UV-B. This research is animal experiment with post test only control group design. As many as 36 mice were divided into 2 groups containing 18 mice each, control group with appliance of placebo cream and intervention group applied with 50% purple corn extract cream. All groups were exposed with UV-B with dose of 840 mJ/cm² for 4 weeks, and biopsy was taken to examine the level of MMP-1 and collagen amount on dermis. The results of Shapiro-Wilk and Levene’s test showed that the data distribution between the two groups was normally distributed with homogenous variance and p ≥ 0.05. Comparative analysis with t-independent test showed that there is a significant difference between both groups, either on the mean level of MMP-1 or the collagen amount on both groups with p < 0.05. The mean collagen amount and mean MMP-1 level of intervention 2 are 71.7% and 1.9 mg/ml, respectively. Intervention-1 group shows the mean amount of collagen and MMP-1 level are 65.54 % and 3.22 mg/ml, respectively. The conclusion of this research is the administration of 50% purple corn extract cream inhibits the increase of MMP-1 level and the decrease of the amount of dermal collagen on mice’s skin exposed with UV-B.
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Kim, I. V., and A. G. Klykov. "Studying anthocyanins in the skin and flesh of the tubers of some potato hybrids (<i>Solanum tuberosum</i> L.)." Vegetable crops of Russia, no. 2 (March 27, 2024): 100–105. http://dx.doi.org/10.18619/2072-9146-2024-2-100-105.
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Relevance. Today special attention is paid to potato anthocyanins as components of functional food. Increasing interest is generated by research on the use of anthocyanins for the benefit of animals and people in addition to their significant role in the life of plants. The research goal was to identify the quantitative and qualitative composition of anthocyanins in the tubers of valuable potato hybrids of Primorsky selection. Five promising potato hybrids (Solanum tuberosum L.) belonging to different groups of maturity and involved in the comparative variety testing by FSBSI “FSC of Agricultural Biotechnology named after A. K. Chaiki” were used as the research object. The research was carried out under the conditions of field and laboratory experiments in Primorsky kray, Russia, in 2018-2023. The anthocyanins were divided by the method of high-performance liquid chromatography. The anthocyanins were identified by the method of second-order mass spectrometry. Results. The research evaluated the potato hybrids for the content of anthocyanins in the tissues of the tubers – skin and flesh. The following specimens were determined to have a high content of anthocyanins both in the skin and flesh: Pri-15-12-14 (petunidin-3-arabinoside: 310.0 and 91.1 mg/kg; cyanidin-3-glucoside: 149.8 and 39.8 mg/kg) and Pri-14-52-2 (petunidin-3-arabinoside: 360.0 and 143.0 mg/kg; cyanidin-3-glucoside: 80.4 and 81.2 mg/kg). The selected specimens were characterized by purple and blue-purple skin. Genotypes Pri-14-52-2 and Pri-15-12-14 had tuber flesh with purple pigmentation. Hybrids Pri-15-12-14 and Pri-14-52-2 had the highest total content of anthocyanins in the flesh – 130.9 and 224.2 mg/kg, respectively. The conducted research identified eight different anthocyanins in the tubers of the studied potato specimens: delphinidin-3-glucoside, delphinidin-3-ramnosil-5-glucoside, petunidin-3-glucoside, malvidin-3-glucoside, cyanidin-3-glucoside, cyanidin-3-ramnosil-5-glucoside, pelargonidin-3-glucoside, and petunidin-3-arabinoside. The tubers with pink and red skin were determined to contain pelargonidin-3-glucoside. Petunidin-3-glucoside and cyanidin-3-glucoside colored tuber skin purple. The selected group of specimens might be recommended for use as functional food and in goal-oriented breeding.
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Nurwahyuningsih, Nurwahyuningsih, Putu Tessa Fadhila, Ade Galuh Rahmadevi, Adi Sucipto, and Ahmad Haris Hasanuddin Slamet. "Analysis of Heat Transfer and Efficiency of Rack Type Flash Dryer Machine in Purple Sweet Potato Drying Process." Jurnal Keteknikan Pertanian Tropis dan Biosistem 11, no. 2 (2023): 116–23. http://dx.doi.org/10.21776/ub.jkptb.2023.011.02.01.
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Purple sweet potato (Ipomoea batatas var Ayumurasaki) has deep purple flesh and tuber skin. The variety of processed purple sweet potato products is increasingly diverse as purple sweet potato production increases, such as cookies and chips. Therefore, a process is needed to turn purple sweet potato into flour before being made into a variety of processed products, namely the drying process. Drying is a process of reducing the water content of a material to a certain level. To determine how much fuel is used by dryer machine, it is necessary to evaluate the effectiveness of the machine. So that in this study the aims were to determine the amount of energy needed to dry purple sweet potatoes, calculate the efficiency of the flash dryer machine and find out the temperature distribution on each tray of the drying machine. Based on the research results of the rack-type flash dryer drying machine, it can be concluded that the mechanism of the heat transfer rate in the purple sweet potato drying process occurs by forced convection heat transfer from the drying air to the purple sweet potatoes and a mass flow rate value of 0.1272 kg/s is obtained, the convection transfer rate in the drying chamber is 836.84 W and the sensible heat value is 1033.84 W. Hence, the amount of heat to dry 3 kg of purple sweet potato for 4 hours is 1870.68 W and an efficiency value of 55.26% is obtained. The total energy required to dry 3 kg of purple sweet potato in 4 hours is 5712.86 kJ.
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Purnamasari, Dewi, Mega Safithri, and Dimas Andrianto. "In Vitro Evaluation of Purple Sweet Potato Leaf Extract (Ipomoea batatas) as a Tyrosinase Inhibitor and Malondialdehyde Formation Inhibitor." Indonesian Journal of Applied Research (IJAR) 5, no. 1 (2024): 64–74. http://dx.doi.org/10.30997/ijar.v5i1.384.
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The study purple sweet potato is known to contain flavonoids, a class of natural polyphenols with the capability to mitigate skin pigmentation. The research aims to assess the antioxidant and tyrosinase inhibitory activities of purple sweet potato extracts obtained through hexane, ethyl acetate, ethanol, and water solvents. The results of phytochemical identification show that the extract contains various secondary metabolites which have the potential to act as antioxidants. The DPPH method IC50 values of 6948.12ppm for n-hexane, 3015.19ppm for ethyl acetate, 128.05ppm for ethanol, and 791.77ppm for water extract. The MDA inhibitor test IC50 values of 2067.02ppm for n-hexane, 1968.13ppm for ethyl acetate, 116.14ppm for ethanol, and 921.14ppm for water extract. In the tyrosinase inhibitor assay, IC50 values were 1328.29ppm for n-hexane, 1245.13ppm for ethyl acetate, 217.35ppm for ethanol, and 391.21ppm for water extract. Tuckey test statistics, ethanol extract was not significantly different from the positive control in the DPPH test, MDA inhibitor and tyrosinase test. These findings suggest that purple sweet potato extracts, particularly the ethanol extract, hold promise as natural ingredients with antioxidant and tyrosinase inhibitory properties, making them potential candidates for safe and effective skin brightening formulations.
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San, Anh Tram, and Le Minh Hung. "EFFECTS OF DIFFERENT MATURITY STAGES ON THE QUALITY OF PURPLE PASSION FRUIT." JOURNAL OF TECHNOLOGY & INNOVATION 1, no. 1 (2020): 30–32. http://dx.doi.org/10.26480/jtin.01.2021.30.32.
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Fruit colour development and shrivelling are one of the major concerns of Vietnamese passion fruit industry as it reduces the appearance and downgrades fruit quality. The effects of colour stages were determined in purple passion grown in Gia Lai province, Vietnam. Immediately after harvesting, fruits were transported to the laboratory in Ho Chi Minh City and stored at 20 ºC. Data showed that different maturity stages, viz., skin colour development stages of purple passion fruit significantly affected the quality including colour development and chemical properties.
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Duque, Luis O. "Performance of Sweetpotato Varieties Grown Using Black Plastic Mulch in Pennsylvania." HortTechnology 30, no. 6 (2020): 797–802. http://dx.doi.org/10.21273/horttech04689-20.
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Sweetpotato (Ipomoea batatas) production in Pennsylvania and the northeastern United States has been increasing steadily. The performance of eight commercially available sweetpotato varieties and two unreleased accessions grown on raised beds and covered with black plastic mulch in Pennsylvania was evaluated. All varieties and accessions were evaluated in 2 successive years (2018 and 2019) at Rock Springs, PA. There were statistically significant differences in total marketable yield (TMY), but not in all yield components in both years. ‘Orleans’, ‘Beauregard’, ‘Averre’, and ‘Covington’ consistently produced high marketable yields and suitable U.S No.1 grade storage roots. ‘Bonita’ (tan skin/white flesh) and ‘Carolina Ruby’ [red skin/orange flesh (OF)] produced consistent yields in both years (range, 330–430 bushels/acre; 50-lb bushel). NC413 [purple skin (PS)/purple flesh (PF)] produced the lowest yield in 2018 and was discarded for future trials. In 2019, NCP13-0030 (PS/PF) produced good yields and shapes comparable to OF varieties. Overall total yields (TYs) measured in this study compared satisfactorily with average nationwide yields, with several varieties producing more than 500 bushels/acre.
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Darotulmutmainnah, Azmi, Marini Marini, Herlingsih Herliningsih, and Hana Handayani. "COMPARISON OF TOTAL FLAVONOID CONTENT AND ANTIOXIDANT ACTIVITY OF PURPLE LEAF EXTRACT (Graptophyllum pictum (L.) Griff.) USING MACERATION AND SOXHLETATION EXTRACTION METHODS." Medical Sains : Jurnal Ilmiah Kefarmasian 10, no. 1 (2025): 45–56. https://doi.org/10.37874/ms.v10i1.1608.
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Purple leaves in Indonesia can be used as an anti-inflammatory medication and laxative to treat hemorrhoids, rheumatism, boils, and skin diseases. Purple leaves are also used as free-radical antidotes. This was due to the presence of secondary metabolite compounds in purple leaves. The right extraction method determines the amount of flavonoids that can be extracted and achieves a high flavonoid content. This study aimed to determine the total flavonoid content and antioxidant activity of purple leaves using different extraction methods, namely maceration and Soxhletation. This study employed an experimental method of testing total flavonoid levels using UV-Vis spectrophotometry and antioxidant activity using the DPPH method. The results showed that the maceration method yielded a total flavonoid level of 4,422 ± 0,047 ppm, which was higher than that obtained using the Soxhletation method (1,547 ± 0,027 ppm). In the antioxidant activity test, vitamin C was used as a comparator, with an IC50 of 2.263 ppm (very strong). The IC50 of purple leaf extract using the maceration method was 123,32 ppm (medium), while the soxhletation method yielded an IC50 of 104,42 ppm (medium). This shows that vitamin C has more potent antioxidant activity in counteracting free radicals than purple leaf extract, using maceration and Soxhletation methods. The results showed a significant difference in total flavonoid levels using different extraction methods, while there was no significant difference in the antioxidant activity of purple leaf extract using maceration and Soxhletation methods. Keywords: antioxidant, extraction, flavonoid, maceration, purple leaf, soxhletation
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Andi Indrawati and Suherman Baharuddin. "Potential of Purple Sweet Potato (Ipomoea batatas var. Ayamurasaki) Skin Extract Cream Preparation as an Antibacterial Against the Growth Activity of Propionibacterium acnes." International Journal of Scientific Multidisciplinary Research 1, no. 10 (2023): 1309–26. http://dx.doi.org/10.55927/ijsmr.v1i10.6765.
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This study aims to determine the potential of a purple sweet potato (Ipomoea batatas var. Ayamurasaki) skin extract cream preparation on the growth activity of Propionibacterium acnes and determine the most effective concentration of the cream preparation. This type of research is experimental, namely laboratory research. Extraction process sample deusing the maceration method, the extract is made in the form of a cream dosage, next the growth activity of Propionibacterium acnes was tested. The research results show that cream preparations purple sweet potato (Ipomoea batatas var. Ayamurasaki) skin extract potentially hindering growth of Propionibacterium acnes, and the concentration of the cream preparation that is most effective in inhibiting growth Propionibacterium acnes is a concentration of 3% (FIV) with a Sig value. 0.000<0.05 (Oneway Anova α=0.05) in bacterial inhibition in the strong category (10–20 mm)
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Kim, Irina, and Alexey Klykov. "STUDYING ANTHOCYANINS IN POTATO TUBERS (SOLANUM TUBEROSUM L.) UNDER THE CONDITIONS OF THE PRIMORSKY REGION." Bulletin of KSAU, no. 4 (December 27, 2024): 12–20. https://doi.org/10.36718/1819-4036-2023-4-12-20.
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Potato (Solanum tuberosum L.) is a source of antioxidants. Important antioxidants are substances of phenolic nature (anthocyanins) from a large group of plant pigments. Anthocyanins belong to the class of flavonoids and are synthesized in the peel and pulp of potato tubers. Pigmented potatoes can serve as a potential source of natural anthocyanins in order to obtain dietary foods, 40 potato varieties from the bioresource collection and breeding nurseries. Identification of anthocyanins was carried out by high performance liquid chromatography (HPLC) and second-order mass spectrometry. As a result of second-order mass spectrometry, seven different anthocyanins were detected in tubers: delphinidin-3-glucoside, delphinidin-3-rhamnosyl-5-glucoside, petunidin-3-glucoside, malvidin-3-glucoside, cyanidin-3-glucoside, cyanidin-3-rhamnosyl-5-glucoside, pelargonidin-3-glucoside.Petunidin-3-glucoside and cyanidin-3-glucoside give the peel a purple and blue-violet color, pelargonidin-3-glucoside – pink and red. The genotypes that are sources of an increased content of anthocyanins have been identified: with pink skin – Kuznechanka (92.2 mg/kg), Pri-15-7-16 (87.4 mg/kg), Pri-15-41-8 (85.1 mg/kg); red peel – Mayak (108.7 mg/kg), Romanze – (57.6 mg/kg); purple skin – Gypsy Laura (115.4 mg/kg), Black Prince (183.1 mg/kg), Cornflower (195.0 mg/kg), Pri-15-12-14 (137.7 mg/kg) , At-14-52-2 (223.3 mg/kg); blue-violet skin – Violet (204.0 mg/kg). The selected group of variety samples is recommended for use in dietary nutrition and in targeted breeding crosses. Promising potato hybrids with a high content of anthocyanins were obtained: Pri-15-12-23 Purple potato × Manifest (in the skin – 292.6 mg/kg, pulp – 144.7 mg/kg), Pri-15-15-5 (Aspiya × Qusto) × Manifesto (107.4 and 4.0 mg/kg, respectively), Pri-15-15-7 (Aspia × Qusto) × Manifesto (73.6 and 1.6 mg/kg).
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Supartiningsih, Supartiningsih, Elly Nurita Sitorus, Yosy Cinthya Eriwaty Silalahi, and Khairunnisa Khairunnisa. "FORMULASI DAN EVALUASI SEDIAAN LIP BALM DENGAN PEWARNA EKSTRAK UBI JALAR UNGU (Ipomoea batatas (L.) Lamk.)." JURNAL FARMANESIA 4, no. 2 (2017): 89–94. http://dx.doi.org/10.51544/jf.v4i2.2707.
Full textAbstract:
Lip balm is a cosmetic preparation with the main components such as wax, fat, and oil from natural or synthesized extracts with the aim of preventing dryness of the lips by increasing lip moisture and protecting the adverse effects of the environment on the lips. The use of purple sweet potato as a dye is because purple sweet potato (Ipomoea batatas (L.) Lamk.) has an attractive color, the color of purple sweet potato is due to the presence of anthocyanin pigments which are derivatives of flavonoid compounds which are generally soluble in polar solvents. This study aims to formulate and evaluate lip balm preparations using purple sweet potato extract at concentrations of 3%, 6%, 9%, and without using purple sweet potato extract. This research is experimental research. Lip balm preparations were made by adding purple sweet potato extract with various concentrations (F1) 3%, (F2) 6%, (F3) 9%, and blank formula (F0) as the basis for lip balm preparations without purple sweet potato extract. Evaluation of the preparation includes homogeneity test, stability test, smear test, adhesion test, spreadability test, and pH test. The test results showed that purple sweet potato extract can be formulated in lip balm preparations that have a homogeneous composition, have good smearing power, good adhesion F0 (1 minute), F1 (1 minute 3 seconds), F2 (1 minute 8 seconds). seconds), F3 (1 minute 11 seconds), spreadability (5-5.7cm), pH test on all preparations showed a pH that was in accordance with the pH of the skin. And obtained formula 3 is the best formula.
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Lau, O. L. "Tolerance of Three Apple Cultivars to Ultra-low Levels of Oxygen." HortScience 25, no. 11 (1990): 1412–14. http://dx.doi.org/10.21273/hortsci.25.11.1412.
Full textAbstract:
Tolerance of apples to low levels (0.5%) of O2 was cultivar-dependent. `Spartan' (SP), `Delicious' (RD), and `Golden Delicious' (GD) apples (Malus domestica Borkh.) held for 7 months in 1.0% O2 (with 1.5% CO2) at 0.5C, plus ≈2 months in air at 0C and 7 days in air at 20C, were similar to those held in 1.5% O2. However, incidence of skin injury in fruit held in 0.5% O2 was very high in SP (purple-brown discoloration), low in RD (purple-brown discoloration), but only negligible in GD (lesions). Skin discoloration in SP and RD developed rapidly in air at 20C. Holding in 0.5% O2 improved retention of flesh firmness and juice acidity in GD and, under certain conditions, reduced scald in RD and SP, delayed yellowing in GD, but increased flesh breakdown in SP, flesh browning and alcohol flavor in SP and RD, and core browning in RD.
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Hidayanti, Andi Sri Nurul, Sulfiani Sulfiani, and Nuramaniyah Taufiq. "Utilization Pemanfaatan Ekstrak Kulit Ubi Jalar Ungu Sebagai Pengganti Crystal Violet pada Pewarnaan Gram." Jurnal Sehat Mandiri 16, no. 2 (2021): 46–56. http://dx.doi.org/10.33761/jsm.v16i2.364.
Full textAbstract:
Purple sweet potato has the high anthocyanin content. The anthocyanin content in purple sweet potato skin is higher than the anthocyanin in the tubers, namely 52.84-729.74 mg/100g while the tubers are 110.51 mg/100g. Natural dyes that have the potential to be extracted include anthocyanins. This research aimed to test anthocyanin dyes in purple sweet potato peel extract as the substitute for crystal violet in gram staining. The type of research used Quasi Experiments. This research was conducted in the Microbiology Laboratory of the Hasanuddin University Medical Faculty. In this research, extraction was carried out by using the solvent of Ethanol : Acetic Acid : Water (25: 1: 5). Furthermore, gram staining was carried out by using purple sweet potato peel extract using a concentration of 60%, 70%, 80%, 90%, 100% and crystal violet as positive control. The results of this research indicate that the staining used purple sweet potato peel extract concentrations of 60%, 70%, 80%, 90% in gram-positive Staphylococcus bacteria isolates showed poor bacterial staining results because the bacteria were not purple when compared to crystal violet dye. Where as at the concentration of 100% it showed good bacterial staining results because the bacteria was purple. Meanwhile, gram-negative e.coli bacteria isolates at the concentration of 60%, 70%, 80%, 90%, 100% showed good bacterial staining results because the bacteria were red. Suggestions for further research to do maceration longer.