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Статті в журналах з теми "Tannin extract"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Mutiar, Sri, and Anwar Kasim. "Potential and Application of Vegetable Tanning Materials from Industrial Forest Plantation in Indonesia." Journal of Fibers and Polymer Composites 2, no. 1 (2023): 29–45. http://dx.doi.org/10.55043/jfpc.v2i1.62.

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Анотація:

Vegetable tanning materials are sourced from plants that contain tannin compounds. Tannins are obtained through the extraction method from the roots, stems, bark, or fruit of the original plant. There are several forest management companies in Indonesia that produce wood from plant species Acacia auriculiformis and Acacia mangium. Both species are known as Acacia. Acacia is an important source of tannin for material tanner vegetables. This wood is produced as a raw material for the pulp and paper industry. However, the bark contains tannin and has not been used optimally. Therefore, the study'

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2

Mahdi Haroun and Manal Mohammed Ahmed. "Appropriateness of Anogessus leiocarpus leaves and bark as vegetable tannins traditionally used in leather making in Sudan." GSC Advanced Research and Reviews 14, no. 1 (2023): 007–13. http://dx.doi.org/10.30574/gscarr.2023.14.1.0371.

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Анотація:

Chrome tanning industry is dominated globally owing to its high versatility in quality leather production. However, Environmental impacts of chromium have shifted the interest of present study to chrome-free options. Vegetable tannins have been proven to be environmentally safe producing good quality leather with comparable properties as that of chrome tanned leather. As such, scarcity of vegetable tannin supply demands characterization of non-commercialized sources locally available to feed local tanners. A simple extraction technique was used with different temperature 35, 50, & 85 oC. L

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3

Ethiraj, Sumathi, and Janarthanam Balasundaram. "Phytochemical and Biological Activity of Cucurbita Seed Extract." JOURNAL OF ADVANCES IN BIOTECHNOLOGY 6, no. 1 (2016): 813–21. http://dx.doi.org/10.24297/jbt.v6i1.4821.

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The present study was performed to investigate the phytochemical screening, total phenol, tannin content, antioxidant and antibacterial activity from seed extracts of Cucurbita pepo and Cucurbita maxima (Tindivanam). The phytochemical analysis revealed the presence of active ingredients such as steroids, cardioglycosides, phenols, terpenoids, alkaloids and tannins in the seed extract of Cucurbita pepo followed by Cucurbita maxima. Gallic acid (GA), Tannic acid (TA) and Butylated Hydroxy Toluene (BHT) were taken as standard in case of total phenol, tannin and antioxidant activity respectively.

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4

Poudel, Madhav, and Meena Rajbhandari. "Phytochemical Analysis of Ampelopteris Prolifera (Retzius) Copeland." Nepal Journal of Science and Technology 19, no. 1 (2020): 78–88. http://dx.doi.org/10.3126/njst.v19i1.29786.

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The fronds of Ampelopteris prolifera are used in stomach ache as well as vegetable. Dried and powdered fronds of A. prolifera was extracted successively with hexane, chloroform, ethyl acetate, methanol and 50% aqueous methanol. The results of phytochemical screening revealed that alkaloids were absent in all extracts. Hexane extract showed the absence of all the tested phytochemicals while chloroform extract showed the presence of only terpenoids and quinones. Ethylacetate extract showed the presence of all tested phytochemicals except quinones and saponins.Methanol and 50% aqueous methanol ex

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5

Akhand, Pooja N., Veena Sharma, and Anupam K. Pathak. "Comparative Studies of Phytochemicals Analysis and in vitro Antioxidant Properties of Various Solvent Extracts of Sphaeranthus indicus Collected from three Different Climatic Zones of Central India." Asian Journal of Chemistry 33, no. 9 (2021): 2237–43. http://dx.doi.org/10.14233/ajchem.2021.23413.

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In present study, the total phenolic, flavonoid, tannin contents and the antioxidant activity of various solvent extracts of Sphaeranthus indicus collected from three different regions of central India were assessed. Plants extracts were prepared using Soxhlation method, while the total phenols, flavonoids and tannins were measured by the spectrophotometric method. DPPH, metal chelating, nitric oxide, superoxide oxide scavenging activity and FRAP, reducing power, total antioxidant assays were also evaluated. The highest phenolic contents 268.22 GAE equivalent, flavonoids 441.33 QE equivalents

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6

Nyaga, Mwenda, Paul Tanui, and Samuel Njenga. "Evaluation of Tamarindus indica L. Seed Tannins." Textile & Leather Review 6 (August 18, 2023): 373–86. http://dx.doi.org/10.31881/tlr.2023.081.

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Анотація:

Tannins are water-soluble polyphenols mostly found in vascular plants and are important raw materials in many industries like leather, pharmaceuticals, and food and beverages. Tannins protect the plant and help its growth. In this study, Tamarindus indica L. seeds were extracted for the determination of tannin content and the tanning strength by the hide powder method. Earlier studies showed that Tamarindus indica L. seeds varied in the amount of tannins present. Mimosa was used as a control. The tanning strength was 1.73 for the tamarind seed extract and 2.06 for mimosa. The tannin content wa

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7

Odenyo, A. A., and P. O. Osuji. "Tannin-tolerant ruminal bacteria from East African ruminants." Canadian Journal of Microbiology 44, no. 9 (1998): 905–9. http://dx.doi.org/10.1139/w98-073.

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Three strains of tannin-tolerant rumen bacteria were isolated from enrichment cultures of rumen microflora of sheep, goat, and antelope and established in medium containing high concentrations of crude tannin extract or tannic acid. These three strains (EAT2, ES3, and EG19), characterized as Selenomonas species, were curved rods, obligately anaerobic, Gram negative, highly motile, and grew in media containing 50 g of tannin extract/L and 50-70 g of tannic acid/L. Strain EAT2 was able to hydrolyze gallic acid, while strains ES3 and EG19 hydrolyzed tannic acid but not gallic acid. All isolates w

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8

Mahdi, Haroun, and Mohammed Ahmed Manal. "Appropriateness of Anogessus leiocarpus leaves and bark as vegetable tannins traditionally used in leather making in Sudan." GSC Advanced Research and Reviews 14, no. 1 (2023): 007–13. https://doi.org/10.5281/zenodo.7678421.

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Анотація:

Chrome tanning industry is dominated globally owing to its high versatility in quality leather production. However, Environmental impacts of chromium have shifted the interest of present study to chrome-free options. Vegetable tannins have been proven to be environmentally safe producing good quality leather with comparable properties as that of chrome tanned leather. As such, scarcity of vegetable tannin supply demands characterization of non-commercialized sources locally available to feed local tanners. A simple extraction technique was used with different temperature 35, 50, & 85 

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9

Kurnianto, Afrizal Syifa, Anjasmara Wahyu Wicaksana, Muhammad Prima Putra, Ragil Yuliatmo, and Mohammad Zainal Abidin. "Unveiling the Potential of Secang (Caesalpinia sappan L.) as a Novel Tanning Agent: A Promising Alternative for the Leather Industry." Textile & Leather Review 7 (February 16, 2024): 222–34. http://dx.doi.org/10.31881/tlr.2023.194.

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Анотація:

The exploration of vegetable tanning's natural resources is fascinating as an alternative to basic chromium sulfate for its natural abundance and considerable environmental impact. In this work, an attempt has been made to extract vegetable tannin from Caesalpinia sappan L. bark using water as a solvent with different levels of temperatures and incubation times. The highest yield efficiency was observed at 80 °C for 4 hours. The presence of tannin content and polyphenolic compounds were screened by the phytochemical analysis using Iron (III) chloride (FeCl3), sodium hydroxide (NaOH), and ensur

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10

Balasundaram, Janarthanam, Dhamotharan R, and Anbkkarasi M. "STUDIES ON PHYTOCHEMICAL SCREENING, TANNINS CONTENT AND ANTIBACTERIAL ACTIVITY FROM LEAF AND CALLUS EXTRACTS OF MEMECYLON UMBELLATUM." Asian Journal of Pharmaceutical and Clinical Research 10, no. 5 (2017): 265. http://dx.doi.org/10.22159/ajpcr.2017.v10i5.15198.

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Objective: This study aims to determine the phytochemical screening, tannins content, and antibacterial activity from leaf and callus extracts of Memecylon umbellatum.Methods: Preliminary screening involved the qualitative methods to detect the presence of terpenoids, flavonoids, phenols, tannins, steroids, quinones, saponins, cardiac glycosides, and alkaloids. Total tannins contents were quantitatively estimated with tannic acid as standard. Different concentrations of ethanolic leaf and callus extracts were tested using the agar disc diffusion technique for the antibacterial activity against

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11

Ulandari, Uci, Masriani Masriani, Risya Sasri, and Ersando Ersando. "Determination of Tannin Content in Matoa Plants (Pometia pinnata) Based on Variations in Leaf Age." Hydrogen: Jurnal Kependidikan Kimia 12, no. 4 (2024): 915. https://doi.org/10.33394/hjkk.v12i4.12583.

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The growth of the textile industry contributes significantly to environmental pollution from dye waste. The use of natural dyes from plants could be a solution to this problem, although they have weaknesses such as easy fading and less stable colors. Therefore, to improve color stability, a mordant is needed as a color fixative. Biomordants are mordants derived from plants that can be used as substitutes for metal mordants to bind dye to fabric fibers. Matoa leaves are one of the plants with the potential to be used as a biomordant because they contain tannin compounds. This study aims to dete

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12

Kadigi, Joseph H., Bashiri I. Muzzo, and Sebastian Schreiber. "Potential Benefits of Tannins on Ruminant Health, Production and Environmental Sustainability." European Journal of Nutrition & Food Safety 16, no. 10 (2024): 13–24. http://dx.doi.org/10.9734/ejnfs/2024/v16i101552.

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Tannins are naturally occurring polyphenolic compounds increasingly recognized for their potential benefits to ruminants. Tannins can be extracted from plants' roots, bark, leaves, and seed husks. Management of plant communities to produce a diverse array of secondary compounds, particularly tannins, is a promising strategy for holistically enhancing agroecosystems on rangelands and benefiting free grazing ruminant animals. Deterioration of rangelands constrains plant diversity, reducing tanniferous forage plants and limiting tannin availability to free-grazing ruminants. Ruminants supplemente

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13

Kusumo, Galuh Gondo, M. A. Hanny Ferry Fernanda, and Heppy Asroriyah. "Identifikasi Senyawa Tanin Pada Daun Kemuning (Murraya panicullata L. Jack) Dengan Berbagai Jenis Pelarut Pengekstraksi." Journal of Pharmacy and Science 2, no. 1 (2017): 29–32. http://dx.doi.org/10.53342/pharmasci.v2i1.63.

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Анотація:

ABSTRAKKemuning (Murraya paniculata L. Jack) adalah salah satu kekayaan alam yang memiliki banyak manfaat bagi kehidupan manusia. Tanin merupakan salah satu metabolit sekunder dari kemuning yang dapat digunakan sebagai anti diare dan pelangsing. Ekstrak kemuning didapatkan dari maserasi menggunakan tiga pelarut berbeda, yaitu metanol, etanol dan etil asetat. Tannin kemudian dipisahan dari ekstrak dengan menggunakan kromatografi lapis tipis (KLT) dengan berbagai jenis pelarut. Hasil nalisis menunjukkan bahwa pelarut terbaik untuk mengekstraksi tanin adalah metanol dengan perolehan 23,6989 g (31

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14

Teklemedhin, Taame Berhanu, Tesfamariam Tekle Gebretsadik, Tesfu Berhane Gebrehiwet, et al. "Vegetable Tannins as Chrome-Free Leather Tanning." Advances in Materials Science and Engineering 2023 (September 28, 2023): 1–11. http://dx.doi.org/10.1155/2023/6220778.

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The purpose of this study is to replace chrome tannins with ecofriendly vegetable tannins as an alternative solution to prevent the public health and the environmental pollution. Vegetable tannin was extracted from Cassia singueana bark using an aqueous extraction method and applied on sheep pickle pelt. Optimum tannin extraction parameters were identified at powder concentration of 80 g/L, extraction temperature of 100°C, and extraction time of 120 mins. Chemical functionality of Cassia singueana extracted tannins was evaluated via FT-IR spectroscopy. Hence, the FT-IR spectrum confirmed the p

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15

Labu, Zubair Khalid, Farhina Rahman Laboni, Mir Md Abdullah Al Mamun, and Md Sariful Islam Howlader. "Antidiarrhoeal Activity and Total Tannin Content of Ethanolic Leaf Extract of Codiaeum variegatum." Dhaka University Journal of Pharmaceutical Sciences 14, no. 1 (2015): 87–90. http://dx.doi.org/10.3329/dujps.v14i1.23740.

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The present study was designed to investigate the antidiarrhoeal activity and determine the total tannin content of the ethanolic extract of the leaves of Codiaeum variegatum (Family- Euphorbiaceae). The antidiarrhoeal activity was evaluated in castor oil-induced diarrhoea in mice and the total tannin content was determined by using the Folin-Coicalteu phenol reagent. The ethanolic extract of leaves of C. variegatum showed a positive effect on castor oil induced diarrhoea in mice. In the antidiarrhoeal assay the extract inhibited the mean number of defecation by 40.81% and 59.18% (p<0.01 &a

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16

Oberle, Anna, Zuzana Paschová, Miklós Bak, and Vladimír Gryc. "Beech wood impregnation with hydrolyzed wattle tannin." BioResources 16, no. 2 (2021): 2548–56. http://dx.doi.org/10.15376/biores.16.2.2548-2556.

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Tannins and their toxic effects against various decay organisms have been interrelated for centuries. As natural products have gained more interest, waste from several production fields abundant in tannins has yielded promising components for wood preservation. In this work, the main approach was to split condensed tannins into smaller fractions by chemical hydrolysis and evaluate their suitability for beech wood impregnation. Commercial extract from black wattle was treated with mineral acid of low concentration. The volatile hydrochloric acid was completely removed after reaction by evaporat

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17

Tsurunaga, Yoko, Mika Ishigaki, Tetsuya Takahashi, et al. "Effect of Addition of Tannin Extract from Underutilized Resources on Allergenic Proteins, Color and Textural Properties of Egg White Gels." International Journal of Molecular Sciences 25, no. 7 (2024): 4124. http://dx.doi.org/10.3390/ijms25074124.

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Анотація:

Tannins, present in numerous plants, exhibit a binding affinity for proteins. In this study, we aimed to exploit this property to reduce the concentration of allergenic egg white proteins. Tannins were extracted, using hot water, from the lyophilized powder of underutilized resources, such as chestnut inner skin (CIS), young persimmon fruit (YPF), and bayberry leaves (BBLs). These extracts were then incorporated into an egg white solution (EWS) to generate an egg white gel (EWG). Allergen reduction efficacy was assessed using electrophoresis and ELISA. Our findings revealed a substantial reduc

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18

Ferreira, Peracio Rafael Bueno, Cíntia Sorandra Oliveira Mendes, Cínthia Gracielly Rodrigues, et al. "Antibacterial activity tannin-rich fraction from leaves of Anacardium humile." Ciência Rural 42, no. 10 (2012): 1861–64. http://dx.doi.org/10.1590/s0103-84782012005000080.

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Анотація:

In vitro tests conducted with extracts rich in tannins have identified several biological activities of this class of substance. Thus, this paper intends to evaluate the antibacterial activity of tannin-rich fraction obtained from leaf extracts of Anacardium humile A.St.-Hil. Extracts of A. humile leaves in 70% acetone were semi-purified with ethyl acetate and butanol. We quantified the total tannins of the semi-purified fractions, of the crude extract and of aqueous residues and then performed tests of the antibacterial activity of the tannins against Staphylococcus aureus ATCC 6538, Pseudomo

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19

Ibrahim, Shehu Lurwanu, and Abubeker Hassen. "Effects of Graded Levels of Mimosa (Acacia mearnsii) Tannin Purified with Organic Solvents on Gas, Methane, and In Vitro Organic Matter Digestibility of Eragrostis curvula Hay." Animals 12, no. 5 (2022): 562. http://dx.doi.org/10.3390/ani12050562.

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The higher contribution of methane (CH4) to global anthropogenic potential is a cause of concern to livestock producers. Mimosa tannin gained recent acceptance as an additive for enteric CH4 mitigation. However, rumen fermentation and digestibility are compromised when large quantities of tannins are supplemented due to the presence of hydrolysable tannin and other non-tannin molecules in mimosa extract, which are toxic to animals. Purification could eliminate the toxins, and thus, reduce the CH4 yield without negative effects on rumen microbial activities and organic matter degradation. The S

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20

Antasionasti, Irma, Olvie Syenni Datu, Utami Sasmita Lestari, Surya Sumantri Abdullah, and Imam Jayanto. "Correlation Analysis of Antioxidant Activities with Tannin, Total Flavonoid, and Total Phenolic Contents of Nutmeg (Myristica fragrans Houtt) Fruit Precipitated by Egg white." Borneo Journal of Pharmacy 4, no. 4 (2021): 301–10. http://dx.doi.org/10.33084/bjop.v4i4.2497.

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Анотація:

The nutmeg (Myristica fragrans) flesh extract has a strong antioxidant activity. Therefore, M. fragrans flesh can be developed for functional drinks which are sources rich in antioxidants good for the prevention and treatment of diseases such as cancer and cardiovascular diseases. However, the tannins' content can cause a bitter and sour taste. Therefore, the tannins content should be reduced by the addition of egg white. The purpose of this study is to find out the comparison of antioxidant activity between a combination of M. fragrans flesh extract with various concentrations of egg white an

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21

Petchidurai, Ganeshan, Kitherian Sahayaraj, Laila A. Al-Shuraym, Bader Z. Albogami, and Samy M. Sayed. "Insecticidal Activity of Tannins from Selected Brown Macroalgae against the Cotton Leafhopper Amrasca devastans." Plants 12, no. 18 (2023): 3188. http://dx.doi.org/10.3390/plants12183188.

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Seaweeds, also known as marine macroalgae, are renewable biological resources that are found worldwide and possess a wide variety of secondary metabolites, including tannins. Drifted brown seaweed (DBSW) is particularly rich in tannins and is regarded as biological trash. The cotton leaf hopper Amrasca devastans (Distant) has caused both quantitative and qualitative losses in cotton production. Drifted brown seaweeds (DBSWs) were used in this study to extract, qualitatively profile, and quantify the levels of total tannins, condensed tannins, hydrolyzable tannins, and phlorotannins in the seaw

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22

Calegari, Leandro, Pedro Jorge Goes Lopes, Gregório Mateus Santana, Diego Martins Stangerlin, Elisabeth De Oliveira, and Darci Alberto Gatto. "EFICIÊNCIA DE EXTRATO TÂNICO COMBINADO OU NÃO COM ÁCIDO BÓRICO NA PROTEÇÃO DA MADEIRA DE Ceiba pentandra CONTRA CUPIM XILÓFAGO." FLORESTA 44, no. 1 (2014): 43. http://dx.doi.org/10.5380/rf.v44i1.28798.

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Dentre os métodos que vêm sendo testados para minimizar a lixiviação de compostos de boro na madeira, destaca-se sua combinação com taninos vegetais. Aos taninos vegetais é atribuída a durabilidade natural da madeira de algumas espécies, indicando sua potencialidade como preservativo natural. Neste estudo, avaliou-se o rendimento de taninos condensados provenientes da casca de Mimosa tenuiflora em extração realizada com água destilada, comparando-o ao da extração envolvendo a inclusão de sulfito de sódio, assim como a eficiência de extratos tânicos sulfitados, combinados ou não com ácido bóric

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23

Field, J. A., and G. Lettinga. "Treatment and Detoxification of Aqueous Spruce Bark Extracts by Aspergillus niger." Water Science and Technology 24, no. 3-4 (1991): 127–37. http://dx.doi.org/10.2166/wst.1991.0469.

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Debarking effluents of the forest industry are severely toxic waste streams due to their high tannin content. The objectives of this study were to evaluate the treatment and detoxification of debarking wastewater with tannin tolerant fungi. For this purpose, Aspergillus niger was cultivated on aqueous bark extracts and the toxicity was assayed utilizing methanogenic bacteria as the test organism. Sterilized aqueous extracts of spruce bark were diluted to 5.2 g COD L−1 (containing 2.7 g tannin COD L−1) in either citrate or tartrate buffer and inoculated with A. niger spores. During four day aer

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24

Handayani, Tien Wahyu, Yulistien Yusuf, and Joni Tandi. "Analisis Kualitatif dan Kuantitatif Metabolit Sekunder Ekstrak Biji Kelor (Moringa oleifera Lam.) dengan Metode Spektrofotometri UV-Vis." KOVALEN: Jurnal Riset Kimia 6, no. 3 (2020): 230–38. http://dx.doi.org/10.22487/kovalen.2020.v6.i3.15324.

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Анотація:

This study aims to determine the content and total levels of secondary metabolites of ethanol extract of moringa seed (Moringa oleifera Lam.). Extraction of moringa seed using the maceration method to obtain a filtrate. The filtrate obtained was concentrated using a rotary evaporator to obtain a concentrated extract. The extract was tested qualitatively for alkaloids, flavonoids, saponins, and tannins using a suitable reagent with the test parameters. The quantitative test was using UV-Visible spectrophotometry. Alkaloids using test parameters equivalent total alkaloid quinine, flavonoids use

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25

Masriani, Masriani, Khofifah Aditha Parawansa, Risya Sasri, Ajuk Sapar, Erlina Erlina, and Ersando Ersando. "The Effect of Different Solvents on Total Tannin Content of Cengkodok (Melastoma malabathricum) Leaf Extracts." Hydrogen: Jurnal Kependidikan Kimia 11, no. 6 (2023): 821. http://dx.doi.org/10.33394/hjkk.v11i6.9774.

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Анотація:

The use of synthetic dyes as color enhancers or generators has caused various environmental and health problems. Plant tannin biomordants offer an alternative solution to address these issues. The sample used in this study were Cengkodok (M. malabathricum) plants that grow wild in places that get enough sunlight such as shrubs. Phytochemical screening on various parts of the cengkodok plant revealed that the highest tannin content is found in the leaf. However, until now there has been no scientific evidence that presents differences in tannin levels in cengkodok leaf with various types of sol

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26

VONGDETH, Kingsadingthongkham. "Tannin Extraction from Leaves of Some Plants." Souphanouvong University Journal Multidisciplinary Research and Development 10, no. 1 (2024): 299–307. http://dx.doi.org/10.69692/sujmrd1001299.

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Анотація:

This research, Tannin compound was extracted from cassava leaves, cueva leaves, jackfruit leaves, mango leaves and poninac leaves from Dongdok Village, Xaythany District, and Vientiane Capital. Using a single-soak extraction method and shaking with a stirrer using solvents as an extractor, such as distilled water, methanol (30%, 50%, 70%, and 95.85%), ethanol (30%, 50%, 70%, and 96.75%), acetone (30%, 50%, 70%, and 99.99%). The ratio between samples to solute was 5:50 g/mL extracted at room temperature with the extraction time of 13 hours (immersing 12 hours and shaking for 1 hour). The total

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27

Warnasih, Siti, and Uswatun Hasanah. "PHYTOCHEMICAL CHARACTERIZATION AND TANNIN STABILITY TEST FROM KLUWEK (Pangium edule Reinw)." Journal of Science Innovare 1, no. 02 (2019): 44–49. http://dx.doi.org/10.33751/jsi.v1i02.1000.

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Анотація:

One of the herbs that can be used as a source of natural dye is the kluwek which is brown. This study aims to determine the type of secondary metabolite compounds producing color, and to determine the stability of tannin in various conditions such as pH, oxidizing, UV rays, heating temperature, and storage using UV-Vis spectrophotometry method. This research includes preparation of kluwek, extraction with acetone:water (7:3) with maceration method, phytochemical test (tannin, flavonoid, carotenoid, and anthocyanin) and total tannins, and tannin stability test on various pH, oxidizing, UV rays,

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Harrizul, Rivai, Yulianti Susi, and Chandra Boy. "Qualitative and Quantitative Analysis of Hexane, Acetone, Ethanol and Water Extract from Bay Leaves (Syzygium polyanthum (Wight) Walp.)." Pharmaceutical and Chemical Journal 6, no. 3 (2019): 13–20. https://doi.org/10.5281/zenodo.13936342.

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Research on the qualitative and quantitative analysis of bay leaves (<em>Syzygium polyanthum</em> (WIGHT) Walp) has been carried out from hexane, acetone, ethanol and water extracts. This study aims to analyze the chemical compounds contained in each extract of hexane, acetone, ethanol, and water from bay leaves, and determine the secondary metabolic content contained in each extract of the bay leaf. The extraction method used was maceration for hexane, acetone and ethanol solvents, infusions for water solvents. The results obtained from phytochemical screening and assay showed that bay leaf a

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Totok Hendarto and Didik Budiyanto. "Enhancing the light fastness of tannin from mangrove waste by encapsulation with chitosan nanoparticle." World Journal of Chemical and Pharmaceutical Sciences 2, no. 1 (2023): 009–16. http://dx.doi.org/10.53346/wjcps.2023.2.1.0037.

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Microwave assisted extraction is an environmentally friendly extraction method, which has been used to extract tannins from mangrove waste. Tannin is a natural dye which is easily oxidized, easily degraded and the color fades easily. To increase its color retention, tannin was encapsulated with chitosan nanoparticle. This study aims to determine the effect of volume tween 80 on particle size and physical and chemical characteristics of tannin extract from mangroves encapsulated with chitosan nanoparticle. The encapsulated tannin extract particle size was measured by Particle Size Analyzer and

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Nabil, Lulu, and Ally Kafesa. "Variasi Aktivitas Antibakteri Ekstrak Etanol Tumbuhan dengan Kandungan Senyawa Tanin terhadap Bakteri Staphylococcus Aureus." MAHESA : Malahayati Health Student Journal 4, no. 5 (2024): 2094–108. http://dx.doi.org/10.33024/mahesa.v4i5.14687.

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ABSTRACT Staphylococcus aureus is a pathogenic bacteria that causes various health problems. This research focuses on variations in the antibacterial activity of plant ethanol extracts containing tannin compounds against Staphylococcus aureus bacteria. To determine the antibacterial activity of ethanol extracts from plants with tannin compounds. The extraction method using ethanol aims to extract active compounds containing tannin which are known to have antibacterial properties. The results of the research showed that the average inhibition zone on each leaf had an inhibition zone diameter of

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31

Ahmed, Fitsum Etefa, Gemeda Gebino Gelebo, and Belay Meles Gebre. "Potential of Water Hyacinth Leaves Extract as a Leather Tanning Agent." Journal of the American Leather Chemists Association 117, no. 9 (2022): 391–99. http://dx.doi.org/10.34314/jalca.v117i9.6169.

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Water hyacinth (Eichhornia crassipes) is listed as one of the worst aquatic plants in the world and its presence in Lake Tana in Ethiopia has been recognized since 2011. Currently, the plant coverage in the lake is increasing and very limited studies have been conducted in the country on practical application of water hyacinth. The aim of this study was to determine the phytochemicals, functional groups and Tannin content of the water hyacinth plant found in the Lake, which could serve as a vegetable tanning agent. Both qualitative and quantitative approaches were used to assess the quality ta

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Istyami, Astri Nur, Muhammad Arif, Muhammad Ilham Azzindi, et al. "Utilization of Tamarind Seeds Extract as a Natural and Sustainable Fabric Dye." Indonesian Journal of Chemical Research 11, no. 3 (2024): 190–96. http://dx.doi.org/10.30598/ijcr.2024.11-ast.

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This research focuses on the use of tannin components in tamarind seed coats as a mordant and natural dye in cotton fabrics. Tannins were extracted from the tamarind seed coat by boiling method and then the tannin content was determined. The tannin extract was then used as a natural mordant with the addition of metallic copper sulfate (CuSO4) mordant. Tannin extract is also used as a dye on fabrics with the addition of sodium sulfate (NaSO4). The color strength of the tannins in the fabric was analyzed using a spectrophotometer from the rinse water. The results showed that the cloth that had b

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Maramis, Rilyn Novita, Evelina Maria Nahor, and Elvie Rifke Rindengan. "Comparison of Different Extraction Methods on Sorghum Seeds (Shorgum bicolor (L). Moench) on Extract Yield and Secondary Metabolite Compound Levels." JURNAL FARMASIMED (JFM) 7, no. 2 (2025): 274–83. https://doi.org/10.35451/jfm.v7i2.2592.

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Sorghum, as a potential crop, has been promoted by the government as a national food source. Sorghum contains primary metabolites such as carbohydrates, proteins, and high fiber, as well as secondary metabolites including alkaloids, tannins and phenols, steroids, and terpenoids. The secondary metabolites produced and the yield obtained depend on the extraction method used. This study aimed to determine the yield and concentration of sorghum seed extract obtained through cold extraction (Percolation) and hot extraction (Reflux). Sorghum seed extract was obtained using cold (Percolation) and hot

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Fruet, Ana Paula B., Francine M. Giotto, Mozart A. Fonseca, José Laerte Nörnberg, and Amilton S. De Mello. "Effects of the Incorporation of Tannin Extract from Quebracho Colorado Wood on Color Parameters, Lipid Oxidation, and Sensory Attributes of Beef Patties." Foods 9, no. 5 (2020): 667. http://dx.doi.org/10.3390/foods9050667.

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The tannin extract of Quebracho Colorado wood (Schinopsis balansae and Schinopsis lorentzii) is rich in proanthocyanidins with demonstrated powerful scavenging activity against free radicals. Currently, this extract is used in the wine industry to improve sensory attributes, stabilize color, and act as a redox buffer. In this study, we hypothesized that condensed tannins from Quebracho Colorado wood could be incorporated into beef patties as a natural antioxidant source to improve shelf life. Patties formulated with tannin extract (0, 0.5%, 1%, and 1.5%) were evaluated for instrumental color,

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Hariyanti, Weni, Masriani Masriani, Risya Sasri, Ajuk Sapar, Erlina Erlina, and Ersando Ersando. "Determination of Total Tannin Content from Methanol Extracts of Various Species of Ferns (Pteridophyta)." Hydrogen: Jurnal Kependidikan Kimia 12, no. 2 (2024): 348. https://doi.org/10.33394/hjkk.v12i2.11597.

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AbstractThe use of heavy-metal mordants in fabric dyeing is prohibited due to the resulting impacts such as environmental damage and public health, therefore environmentally friendly and non-toxic mordants such as tannin mordants (biomordants) are needed. Based on phytochemical screening on fern species (Pteridophyta), it is known that they contain tannins. However, scientific evidence of determining the total tannin content of various species of ferns has so far not been found. This study aims to determine the yield and total tannin content of methanol extracts of five fern species, namely pa

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Trisnawati, Ade, Sri Wahyuningsih, and Febriyandhi Yahya. "The Determination of Tannin Content and Larvicidal Activity Test Of Ripe Sapodilla Fruit Peel (Manilkara zapota)." International Journal of Multidisciplinary Sciences and Arts 1, no. 2 (2023): 152–58. http://dx.doi.org/10.47709/ijmdsa.v1i2.2062.

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This study aimed to determine the results of total tannin content determination of sapodilla peel extract (Manilkara zapota) and the effectiveness of sapodilla peel extract (Manilkara zapota) as a Aedes aegypti mosquito larvicide. The method used was a quantitative descriptive with a purposive sampling method. The sample was ripe sapodilla (Manilkara zapota) peel. The determination of tannin content in sample extracts was analyzed using UV-Vis spectrophotometry. The extraction of tannins from sapodilla peel (Manilkara zapota) was carried out by maceration method using 70 % ethanol. Based on th

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Natsir, Sulmiyati, and Gemini Ermiani M. Malelak. "Evaluation of Color, Hardness, and Tannin Content of Soft Cheese with Biduri Leaf Extract Level." Hasanuddin Journal of Animal Science (HAJAS) 4, no. 2 (2022): 90–96. http://dx.doi.org/10.20956/hajas.v4i2.21903.

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Soft cheese Suspesi is a soft cheese to which biduri leaf extract is added as a coagulant. There is no research on the color, hardness, and content of tannins contained in soft cheese suspesi. The purpose of this research was to analyze and evaluate the hardness, color *L, *a, *b, and tannin content with the addition of biduri leaf extract at levels of 3% and 5% in soft cheese suspesi. This research used a completely randomized design with two treatments with six replications. A1= Biduri leaf extract level 3% (v/v), A2= Biduri leaf extract level 5% (v/v). Data on hardness, color, and tannin co

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Werdiningsih, Monika, Ira Widjiastuti, Febriastuti Cahyani, and Dian Agustin Wahjuningrum. "Biocompatibility of 0,78% tannin of garciniamangostanalinnpericarp extract and 0,2% chlorhexidinegluconateagainst BHK-21 fibroblast cells culture." Conservative Dentistry Journal 10, no. 1 (2020): 36. http://dx.doi.org/10.20473/cdj.v10i1.2020.36-39.

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Background.Chlorhexidinegluconate is one of endodontic irrigants potential due to its antibacterial activity. Although it is an effective antibacterial agent, chlorhexidinegluconate cannotdissolve organic substances and necrotic tissue present in the root canal. In addition, same as other chemicals, chlorhexidinegluconate also cause a cytotoxic effect. Tannin extracts of mangosteenpericarp (Garciniamangostana Linn.) demonstrated various biological activities including antibacterial, antioxidant, anticancer and anti-inflammatory. Tannin extracts of mangosteenpericarp can be considered as an alt

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Khatri, Devika, and Amrit Maya Lawati. "Qualitative and Quantitative Analysis of Phytochemical Constituents of Alternanthera brasiliana (L.) Kuntze and Cassia alata (L.) using Different Organic Solvents." Himalayan Journal of Science and Technology 6, no. 1 (2022): 29–37. http://dx.doi.org/10.3126/hijost.v6i1.50650.

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The therapeutic qualities of Alternanthera brasiliana and Cassia alata are due to the phytochemicals contained in these plants. This research was conducted to study the phytochemical analysis of leaf extracts of these plants using methanol, hexane, and chloroform solvents. The leaves were collected, cleaned, and dried for eight hours at 60°C in a cabinet dryer. Using the solvent extraction method, the extract was made. Qualitative and quantitative analysis was done to determine the occurrence of flavonoids, terpenoids, tannins, phenols, amino acids, alkaloids, phlobatannins, glycosides, and sa

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Mwangi, Sharif Zuberi, Valerian Cosmas Silayo, and Davis Naboth Chaula. "Optimization of Tannin’s Extraction from Cashew (Anacardium occidentale L.) Nut Testa for Use in Leather Tanning." Asian Journal of Applied Chemistry Research 15, no. 2 (2024): 7–16. http://dx.doi.org/10.9734/ajacr/2024/v15i2283.

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Extensive researches have been conducted over the years, focusing on the use of vegetable tannins to reduce pollution caused by mineral tanning. Vegetable tannins have been utilized commercially, but they remain costly and are not easily accessible. The purpose of this study was to optimize the tannin’s extraction from cashew (Anacardium occidentale L.) nut testa using water in order to determine their suitability in leather tanning. Samples of cashew nut testa were collected randomly from cashew nut processors in Mtwara region, Southern Tanzania. They were shade-dried and ground into powder.

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Indriaty, Indriaty, Binawati Ginting, Kartini Hasballah, and Djufri Djufri. "A Comparative Study of Total Tannin Contents and Antimicrobial Activities in Methanol Extracts of Rhizophoraceae Species." Heca Journal of Applied Sciences 1, no. 2 (2023): 62–70. http://dx.doi.org/10.60084/hjas.v1i2.89.

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Rhizophoraceae is a large true mangrove family that produces mangrove tannins. Tannins have the potential to be used as antimutagenic, anticancer, antimicrobial, and antioxidant agents in the pharmaceutical and medical fields. The aim of the research was to determine the total tannin content, antimicrobial activity, and the correlation between the two in methanol extracts of four plant parts (roots, bark, leaves, and fruit/hypocotyl) from five Rhizophoraceae species, namely Bruguiera cylindrica, Bruguiera gymnorrhiza, Ceriops decandra, Rhizophora apiculata, and Rhizophora mucronata originating

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Elihasridas, Roni Pazla, Mardiati Zain, Antonius, Zaitul Ikhlas, and Gusri Yanti. "Optimizing mangrove-derived tannin extract for sustainable ruminant feeding: A strategy to balance nutrient digestibility and methane mitigation." Journal of Animal Behaviour and Biometeorology 13, no. 2 (2025): 2025012. https://doi.org/10.31893/jabb.2025012.

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This study evaluated the effects of supplementation with mangrove fruit extract (Sonneratia alba) as a tannin source on rumen fermentation dynamics, nutrient digestibility, and methane reduction. Four ration treatments were tested with different tannin contents from mangrove leaf extracts (0%, 0.5%, 1% and 2%). The results revealed a significant reduction in the protozoan population and methane emission, from 25.68 ± 1.05 ml/g OMD (control) to 19.34 ± 0.98 ml/g OMD (2% tannin). However, higher tannin concentrations decreased the digestibility of dry matter, organic matter, and microbial biomas

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Noman, Saja Jamal, and Amal Kamal Suliman. "Effect of tannin fruit extracts on Candida albicans yeast." INTERNATIONAL JOURNAL OF MEDICAL SCIENCES 6, no. 2 (2023): 10–18. http://dx.doi.org/10.32441/ijms.6.2.2.

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Background: The results of the chemical detection showed that the active groups in the fruit extracts of the tannin plant contained glycosides, saponins, flavonoids, tannins, terpene and phenols. Aim: To evaluate Tannins inhibition activity against Candida albicans.  Materials and methods: A number of aqueous, alcoholic and acetone fruit extracts of Tannins were prepared, and their effect on inhibition of Candida albicans was tested. Four concentrations were used [10, 20, 30, 40 (mg / ml)]. Results: The effect of tested extracts on yeast varied in terms of concentration and t

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Iriany, Florentina Pandiangan, and Christina Eka P. "EKSTRAKSI TANIN DARI KULIT KAYU AKASIA DENGAN MENGGUNAKAN MICROWAVE: PENGARUH DAYA MICROWAVE, WAKTU EKSTRAKSI DAN JENIS PELARUT." Jurnal Teknik Kimia USU 6, no. 3 (2017): 52–57. http://dx.doi.org/10.32734/jtk.v6i3.1590.

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 Tannin is one of complex polyphenol compound which soluble in polar solvent. Tannin could be extracted from acacia bark. This study aims to examine microwave-assisted extraction of tannins under influence of microwave power, extraction time, and solvent and its application to adsorb Cd and Cu. Tannin was extracted from acacia bark with feed-to-solvent ratio (1:20 g/ml). Power of microwave was adjusted 100 W, 180 W, 300 W, 450 W, and 600 W for 1 minute, 3 minutes and 5 minutes respectively using aquadest and ethanol as the solvent. The extracts were analyzed using UV-Vis spectrophotomete

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Wardi, Epi Supri, Roslinda Rasyid, Maida Soniamarta, Yuliawati, and Bastian Nova. "Determination of Total Tannin Content and Antioxidant Activity of the Ethanol Extract from Senduduk Leaves (Melastoma malabathricum L.)." Asian Journal of Research in Biochemistry 15, no. 4 (2025): 111–17. https://doi.org/10.9734/ajrb/2025/v15i4411.

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Background: Antioxidants are molecules capable of donating one or more electrons to free radicals, thereby stabilizing and neutralizing them. By doing so, antioxidants help protect the body from oxidative stress and its associated health risks. Aims: This study aims to determine the total tannin content and antioxidant activity of Senduduk leaves using a UV‑Vis spectrophotometer method. Study Design: Experimental laboratory study involving maceration extraction, qualitative and quantitative phytochemical analysis, and DPPH antioxidant assay. Place and Duration of Study: Department of Pharmacy,

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Lestari, Dwi Wiji, Vivin Atika, Yudi Satria, Aprilia Fitriani, and Tri Susanto. "Aplikasi Mordan Tanin pada Pewarnaan Kain Batik Katun Menggunakan Warna Alam Tingi (Ceriops tagal)." Jurnal Rekayasa Proses 14, no. 2 (2020): 128. http://dx.doi.org/10.22146/jrekpros.57891.

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The aim of the study was to evaluate the performance of tannin mordant from Psidium guajava leaves, Peltophorum pterocarpum bark, and Coffea arabica leaves in cotton batik dyeing using tingi bark (Ceriops tagal). This research was conducted by initial quantitative analysis of each extract to measure the quantity of tannin using UV-Vis spectrophotometry with tannic acid as a standard solution. The next process was a fabric pre-mordanting using each mordant extract, batik process, coloring with tingi bark extract, and post-mordanting using each alum solution and guava leaves extract. The dyed ba

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Poedjirahajoe, Erny, Ragil Widyorini, and Ni Putu Diana Mahayani. "Kajian Ekosistem Mangrove Hasil Rehabilitasi pada Berbagai Tahun Tanam untuk Estimasi Kandungan Ekstrak Tanin di Pantai Utara Jawa Tengah." Jurnal Ilmu Kehutanan 5, no. 2 (2011): 99. http://dx.doi.org/10.22146/jik.1854.

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Penelitian ini dilakukan di kawasan rehabilitasi mangrove Pantai Utara Pemalang dan Rembang, Dari dua lokasi tersebut masing-masing di pilih tanam mangrove yang sama. Setiap tahun tanam dibagi dalam tiga zona dari arah laut ke darat. Kondisi ekosistem mangrove dikaji melalui pendekatan terhadap pengukuran kerapatan, rata-rata tinggi dan diameter, ketebalan lumpur, salinitas dan kandungan bahan organik pada setiap zonasi dan setiap tahun tanam. Untuk memperkirakan kandungan ekstrak tanin, pada setiap tahun tanam diambil 3 sampel vegetasi (dalam satu zona diambil satu sampel), kemudian dikelupas

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Wahyuni, Sri, Masriani Masriani, Risya Sasri, Ajuk Sapar, Erlina Erlina, and Ersando Ersando. "The Effect of Different Extraction Methods on Total Tannin Content of Methanol Extract of Simpur Air Leaves (Dillenia suffruticosa)." Hydrogen: Jurnal Kependidikan Kimia 11, no. 6 (2023): 889. http://dx.doi.org/10.33394/hjkk.v11i6.9897.

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The use of metal mordants in fabric dyeing can harm the environment and health, so it is necessary to look for natural mordants that are more environmentally friendly. The utilization of Simpur Air leaves (Dillenia suffruticosa) as a biomordant is one of the efforts to produce a more environmentally friendly tannin mordant. D. suffruticosa has been reported to contain tannin compounds in all parts of the plant. However, scientific evidence of differences in the total tannin content of methanol extracts of D. suffruticosa leaves with various extraction methods have not been found so far. This s

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Dikatoru, Ravendha, Elok Widayanti, and Retno Ikayanti. "Analysis of Caffeine, Tannin and Total Phenol Content of Tea Leaves from Sirah Kencong Blitar Plantation." Indonesian Journal of Chemical Research 12, no. 2 (2024): 129–35. http://dx.doi.org/10.30598/ijcr.2024.12-rav.

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Caffeine, tannins, and total phenol are chemical components of tea leaves that are beneficial for the body. Caffeine is a psychoactive substance, tannin is anti-diarrhea, and phenol compounds are antioxidants that prevent free radicals. The purpose of this research was to analyze the levels of caffeine, tannin, and total phenol of tea leaves at Sirah Kencong Blitar Plantation. Determination of the caffeine level was carried out in tea leaves powder using UV-Vis Spectrophotometry method at 273.5 nm wavelength with caffeine as a standard. The determination of tannin and total phenol levels was c

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Firmansyah, M. A., Erfiani, A. Jayanegara, Achmad, and N. Wijayanto. "In vitro biological control of Ceratobasidium ramicola by using tannin extracts from Acacia villosa, Myristica fragrans, Acacia mangium, and Calliandra calothyrsus leaves." Brazilian Journal of Biology 80, no. 2 (2020): 235–39. http://dx.doi.org/10.1590/1519-6984.184912.

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Abstract Ceratobasidium ramicola is a fitopathogenic fungus that harmful and causes various levels of damage on several types of forestry and horticultural crops. The purpose of this study was to examine the effect of Acacia villosa, Myristica fragrans, Acacia mangium and Calliandra calothyrsus leaf extracts as tannin sources related to the in vitro inhibition of Ceratobasidium ramicola growth. The in vitro inhibition was performed by employing solid potato dextrose agar (PDA) medium to obtain the radial inhibition, while liquid potato dextrose broth (PDB) medium was used to obtain the biomass

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