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Journal articles on the topic 'Rotary evaporator'

Author: Grafiati
Published: 7 September 2021
Last updated: 11 February 2022

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1

Maynard, David F. "A Microscale Rotary Evaporator." Journal of Chemical Education 71, no. 11 (1994): A272. http://dx.doi.org/10.1021/ed071pa272.

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2

Sahlan, Muhamad, Andhika Akhmariadi, Diah Kartika Pratami, Heri Hermansyah, and Anondho Wijanarko. "Scale Up Production Indonesian Liquid Propolis From Raw Propolis and Wild Beehive Using Bubbling Vacuum Evaporator." MATEC Web of Conferences 248 (2018): 04001. http://dx.doi.org/10.1051/matecconf/201824804001.

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The process of production propolis on a laboratory scale using a rotary evaporator with capacity one liter of ethanol extract propolis include propylene glycol as solvent medium. Ethanol is evaporated at a temperature of 65°C and reduced water content at 80°C. For the quantity of products can be increased by increasing the capacity of the ethanol extract of propolis and the medium while solvent evaporation to 12 liters and modify the rotary system with a bubbling system (bubbling vacuum evaporator). Then the solvent medium used was replaced with glycerol. The result of 8.02 kg of raw propolis
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3

Hamba, Fujihiro, Kazuhiro Niimura, Yuichi Kitagawa, and Kazuyuki Ishii. "Helicity transfer in rotary evaporator flow." Physics of Fluids 26, no. 1 (2014): 017101. http://dx.doi.org/10.1063/1.4861095.

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4

Cheng, C. C. "Recovery of Polycyclic Aromatic Hydrocarbons During Solvent Evaporation with a Rotary Evaporator." Polycyclic Aromatic Compounds 23, no. 3 (2003): 315–25. http://dx.doi.org/10.1080/10406630308048.

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5

Chatterjee, S., G. Sugilal, and S. V. Prabhu. "Heat transfer in a partially filled rotary evaporator." International Journal of Thermal Sciences 142 (August 2019): 407–21. http://dx.doi.org/10.1016/j.ijthermalsci.2019.04.033.

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6

Zagorulko, Aleksey, Andrii Zahorulko, Maksym Serik, Vyacheslav Оnishchenko, and Alexander Postadzhiev. "Determination of heat transfer coefficient in advanced rotary film evaporator." Technology audit and production reserves 4, no. 3(60) (2021): 42–45. http://dx.doi.org/10.15587/2706-5448.2021.237979.

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The object of research is the process of concentrating fruit and vegetable purees in an improved rotary film evaporator. The existing hardware design of traditional processes for processing fruits and vegetables, as a rule, is not unified enough, inconvenient in operation and is designed for high productivity. Concentration of fruit and vegetable purees occurs mainly in vacuum evaporators of periodic and continuous operation at a temperature of 60–80 °C under vacuum, which allows them to significantly preserve their nutritional value. But the duration of the process remains very significant (i
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7

Santoso, Budi, Fitrian Imaduddin, Heru Sukanto, et al. "Procurement and Operation Technical For Meniran (Phyllanthus Niruri) Extraction Equipment." Mekanika: Majalah Ilmiah Mekanika 20, no. 1 (2021): 34. http://dx.doi.org/10.20961/mekanika.v20i1.45487.

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At this time the government prohibits the use of antibiotics in animal feed as a growth promoter (AGP) or antibiotic, so an effective and safe immunomodulator and herbal growth stimulant product are needed through Meniran extract products (Phyllantus niruri) and chemicals in the market are not yet optimal as immunomodulators and growth stimulants. CV. Maxipro Agrosatwa which is engaged in veterinary medicine, wholesale trade of agricultural products, and other live animals will produce feed using Meniran extract products. Extraction equipment that is needed is a Rotary vacuum evaporator. This
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8

Nugrahaini, Dian Laila, Endang Kusdiyantini, Udi Tarwotjo, and A. Heru Prianto. "Identifikasi Kandungan Senyawa Kimia Cuka Kayu dari Sekam Padi." Bioma : Berkala Ilmiah Biologi 19, no. 1 (2017): 30. http://dx.doi.org/10.14710/bioma.19.1.30-37.

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Wood vinegar rice husk contains a chemical compound that can be used as a biopesticides. Wood vinegar contained compounds which estimated potential as repellent, antifeedant, antimicrobials, antioxidants, disinfectants and as preservatives. The content of chemical compounds in the wood vinegar must be identified. Identification were done by calculating the concentration of acid, phenol and an infrared spectrophotometer. Production of wood vinegar made by the pyrolysis process used pirolisator. Most of the wood vinegar obtained is evaporated using a rotary evaporator and partly extracted using
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9

Alaimo, Robert. "Oh where, oh where should my rotary evaporator go?" Journal of Chemical Health and Safety 17, no. 2 (2010): 37. http://dx.doi.org/10.1016/j.jchas.2010.01.013.

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10

Ariani, Sri Retno Dwi, Endang Susilowati, Elfi Susanti VH, and Setiyani Setiyani. "ACTIVITY TEST OF GUAVA (Psidium guajava L.) LEAF METHANOL EXTRACT AS CONTRACEPTION ANTIFERTILITY TO WHITE MICE (Rattus norvegicus)." Indonesian Journal of Chemistry 8, no. 2 (2010): 264–70. http://dx.doi.org/10.22146/ijc.21632.

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The aim of this research is to know about if the guava (Psidium guajava L.) leaf methanol extract on 10.5 mg/mL and 21.0 mg/mL dossages indicate a positive test as contraception antifertility to white mice (Rattus norvegicus). The sample is guava leaf from Mungkid, Magelang Central of Java Indonesia. The animals experiment are the white mice on 140-300 g for female, 200-250 g for male and about 3 months of age in average. The steps of this research are : (1) preparing sample, i.e. washing, drying on to indirect sunlight and make the sample into powder, (2) isolation the guava leaf powder in so
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11

Kirksey, K. Bruce, and Thomas C. Mueller. "Effect of Extraction Systems on Clomazone Recovery from Aged Soil Samples." Journal of AOAC INTERNATIONAL 78, no. 6 (1995): 1519–21. http://dx.doi.org/10.1093/jaoac/78.6.1519.

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Abstract Seven extraction methods were examined to determine which one provided a simple, efficient clomazone extraction from aged soil. The method selected involved adding 80 mL acetonitrile to moist soil and shaking for 16 h. The extract was filtered, and an additional 80 mL acetonitrile was added, equilibrated for 1 h, and filtered. Filtrates were combined and concentrated with a rotary evaporator. Clomazone concentrations were then determined by reversed-phase liquid chromatography with UV detection at 220 nm. Recovery with this method was equal to a 16 h + 1 h extraction with methanol, bu
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12

Zahorulko, Andrii, Aleksey Zagorulko, Valeriy Mykhailov, and Eldar Ibaiev. "Improved rotary film evaporator for concentrating organic fruit and berry puree." Eastern-European Journal of Enterprise Technologies 4, no. 11(112) (2021): 92–98. http://dx.doi.org/10.15587/1729-4061.2021.237948.

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This paper reports the improved rotor-film evaporator with the lower arrangement of the separating space, the auger-type discharge of concentrated organic fruit and berry paste, and preheating the puree with secondary steam. The working surface of the evaporator is heated by a flexible film resistive electric heater of the radiating type with an insulating outer surface. Peltier elements installed in the device make it possible to provide low-voltage power for exhaust fans from the thermal secondary steam. The puree fed for processing is preheated by 8...10 °С by the heat from the concentrated
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13

Ободович, Олександр Миколайович, and Сергій Ігорович Костик. "Investigation dehydration process microbiological materials in a rotary-film evaporator." Eastern-European Journal of Enterprise Technologies 6, no. 8(66) (2013): 36. http://dx.doi.org/10.15587/1729-4061.2013.19126.

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14

Hasmita, Ida, Fauzi Redha, and Rio Junaidy. "Enhancement of Quality of Nutmeg Oil Using Rotary Vaccumm Evaporator." Journal of Physics: Conference Series 1232 (September 2019): 012039. http://dx.doi.org/10.1088/1742-6596/1232/1/012039.

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15

HASEGAWA, YUKARI, YUMIKO NAKAMURA, YASUHIDE TONOGAI, SHINJI TERASAWA, YOSHIO ITO, and MITSURU UCHIYAMA. "Determination of Ethyl Carbamate in Various Fermented Foods by Selected Ion Monitoring." Journal of Food Protection 53, no. 12 (1990): 1058–61. http://dx.doi.org/10.4315/0362-028x-53.12.1058.

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A simple and sensitive method for the determination of ethyl carbamate (urethane) in various fermented foods has been developed. Twenty g of sample was homogenized and extracted with 150 ml of acetone. Twenty ml of water was added to the extract which was then evaporated to remove organic solvent. The residual aqueous solution was extracted three times with 100 ml of dichloromethane. The organic layer was concentrated by rotary evaporator and was charged on an acid-celite column. After washing the column with 100 ml of pentane and 100 ml of pentane-dichloromethane mixture (80:20), ethyl carbam
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16

Kaur, Paninder, J. S. Dua, and D. N. Prasad. "FORMULATION AND EVALUATION OF KETOCONAZOLE NIOSOMAL GEL." Asian Journal of Pharmaceutical Research and Development 6, no. 5 (2018): 71–75. http://dx.doi.org/10.22270/ajprd.v6i5.424.

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ABSTRACT
 
 In recent years, treatment of infectious disease through Novel Drug delivery system (NDDS) has undergone a revolutionary shift. Niosomes are a Novel Drug Delivery system which has potential application to treat infectious disease topically. Niosomes are non-ionic surfactant vesicles, in which medication is encapsulated in a vesicle for controlled drug release. Ketoconazole niosomes were prepared by using Cholesterol, Span 60/ Span 40 as surfactants, chloroform, and diethyl ether using rotary vacuum evaporator method. Formulation was then evaluated for particle size, drug
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17

Sharma, Neelam, and Sukhbir Singh. "Central composite designed ezetimibe solid dispersion for dissolution enhancement: synthesis and in vitro evaluation." Therapeutic Delivery 10, no. 10 (2019): 643–58. http://dx.doi.org/10.4155/tde-2019-0063.

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Aim: The current research is focused on increasing aqueous solubility and dissolution of BCS class II drug by using modified solvent evaporation technique to produce solid dispersions of ezetimibe (EZSD) using gelucire 50/13 and polyvinyl pyrollidone K30. Methodology & results: Central composite design analyzed the effect of gelucire 50/13 and polyvinyl pyrollidone K30 on the percentage of drug released in 5 and 30 min. Ezetimibe (EZ) aqueous saturation solubility (4.56 ± 0.94 μg/ml) was increased 25-fold in EZSD (115 ± 3.41 μg/ml). Cumulative drug release from EZ and optimized EZSD were o
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18

Sri Hermawan, Yuli Rizky Ananda Nasution, and Rosdanelli Hasibuan. "PENENTUAN EFISIENSI INHIBISI KOROSI BAJA MENGGUNAKAN EKSTRAK KULIT BUAH KAKAO (Theobroma cacao)." Jurnal Teknik Kimia USU 1, no. 2 (2012): 31–33. http://dx.doi.org/10.32734/jtk.v1i2.1415.

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Cocoa peel extract is a natural inhibitor that can be used to inhibit the corrosion reaction rate. This research begins by extracting cocoa pods by maceration followed by evaporation on rotary vacuum evaporator and extracts used as the inhibitor with concentration 600, 800 and 1000 ppm, using steel 1 × 2 cm and the thickness is 0,1 cm to determine the corrosion rate and corrosive medias are sea water, rainwater and sulfuric acid 1 M . The highest inhibition efficiency generated is 93,06% with concentration of 600 ppm inhibitor in rainwater corrosive media; which means that cocoa peel extract m
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19

Hespeler, David, Sanaa El Nomeiri, Jonas Kaltenbach, and Rainer H. Müller. "Nanoporous smartPearls for dermal application – Identification of optimal silica types and a scalable production process as prerequisites for marketed products." Beilstein Journal of Nanotechnology 10 (August 8, 2019): 1666–78. http://dx.doi.org/10.3762/bjnano.10.162.

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smartPearls are a dermal delivery system for poorly soluble active agents, consisting of nanoporous silica particles loaded with a long-term stable, amorphous active agent in its mesopores (2–50 nm). The amorphous state of the active agent is known to increase dermal bioavailability. For use in marketed products, optimal silica types were identified from commercially available, regulatory accepted silica. In addition, a scalable production process was demonstrated. The loading of the particles was performed by applying the immersion–evaporation method. The antioxidant rutin was used as a model
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20

Tanaka, Shunya, Yuri Naruse, Koichi Terasaka, and Satoko Fujioka. "Concentration and Dilution of Ultrafine Bubbles in Water." Colloids and Interfaces 4, no. 4 (2020): 50. http://dx.doi.org/10.3390/colloids4040050.

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Submicron-sized bubbles are now officially called ultrafine bubbles (UFBs) by the international standard. The concentration of UFBs is generally low (<109 particles/mL; <0.001 vol%) compared to other colloidal dispersions. To overcome this practical problem, we concentrated UFBs in ultrapure water prepared by a commercial UFB generator and quantified the effect of rotary evaporation of the dispersion media on the stability of UFBs. The UFB dispersions were characterized by a particle tracking analysis (PTA) instrument. The experimental results showed that the UFBs can be diluted and conc
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21

Manurung, Merlyn D., Reiny A. Tumbol, Henneke D. Pangkey, Deiske A. Sumilat, and Remy E. P. Mangindaan. "The use of Sponge Crude Extract to Increase Growth and Immune Response of Nile Tilapia Oreochromis niloticus." JURNAL ILMIAH PLATAX 7, no. 1 (2019): 256. http://dx.doi.org/10.35800/jip.7.1.2019.23228.

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This study aims to examine the effect of sponge crude extract addition to the fish feed on growth and non-specific immune response of nile tilapia (O. niloticus) and determine the most effective dose of the extract in raising the growth and the non-specific immune response of nile tilapia (O. niloticus). The sponge sample was macerated and then evaporated using a rotary vacuum evaporator until the sample became a paste and mixed with feed. The fish were fed for 14 days respectively as much as 5% of body weight per day with feeding frequency of two times a day. The results showed that addition
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22

Hahn, Josef, Petra Schmidt, Klaus Reinartz, Jörg Behrend, Gisbert Winnewisser, and Koichi M. T. Yamada. "Synthesis and Molecular Structure of Disulfane." Zeitschrift für Naturforschung B 46, no. 10 (1991): 1338–42. http://dx.doi.org/10.1515/znb-1991-1011.

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The synthesis and structure of disulfane are presented. Pure disulfane, H2S2, has been obtained by the cracking distillation of raw sulfane mixtures in a rotary evaporator, thus substituting the classical cracking column for the rotating flask of the evaporator. Pure, gaseous dideuterodisulfane could be generated by the solvolysis of bis(methyldiphenylsilyl)disulfane, (MePh2Si)2S2, with D2O in the presence of trichloroacetic acid as stabilizing agent. Partially deuterated disulfane has been prepared by H,D exchange between pure H2S2 and DCl. For the first time the molecular structure of HSSH h
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23

Al-Hassani, Ahmed H., and Alaa R. Al-Badri. "Effects of Evaporator and Condenser Temperatures on the Performance of a Chiller System With a Variable Speed Compressor." Engineering and Technology Journal 39, no. 1A (2021): 45–55. http://dx.doi.org/10.30684/etj.v39i1a.1647.

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The operation and performance of heat-pump systems are affected by indoor and outdoor operating conditions. Power consumption and system efficiency are related to evaporator and condenser working pressures. Intelligent controllers such as a proportional integral (PI) controller improve the performance of variable speed refrigeration systems (VSRs) with electronic expansion valve (EEV). Evaporator and condenser pressures affect the system power consumption and efficiency. In this study, the influence of evaporator and condenser temperatures on the performance of a variable speed refrigeration s
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24

Wang, Long, Ying Liu, Fan Pu, Wen Zhang, and Zhongmu Zhou. "Effect of Rotary Evaporator Water Bath Temperature on Recovery Rate of Phthalate Esters." Bulletin of Environmental Contamination and Toxicology 101, no. 6 (2018): 810–13. http://dx.doi.org/10.1007/s00128-018-2440-3.

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25

Siregar, Ambali Azwar, Urip Harahap, and Mardianto Mardianto. "EKSTRAK ETANOL DAUN SIRIH MERAH (Piper crocatum) MENURUNKAN KADAR GULA DARAH MENCIT DIABETES." Jurnal Ilmiah Manuntung 1, no. 1 (2017): 42. http://dx.doi.org/10.51352/jim.v1i1.10.

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Diabetes mellitus is one of desease that have a large population and trend to increase. sulfonylurea and biguanide are almost used treatment but have unexpected side effects. The research still necessary to seek alternative medicine, such as Piper crocatum.This study aimed to determine the effect of ethanol extract of red betel leaves on blood sugar levels and body weight of mice (Mus musculus L.) diabetes. This riset was started to produce simplicia and drilled become powders, continued extract with 70% ethanol. The extract was evaporated with rotary evaporator until obtaine crude extract. An
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Lubis, Misri Yanty, Rikson Siburian, Lamek Marpaung, Partomuan Simanjuntak, and Muhammad Pandapotan Nasution. "METHYL GALLATE FROM JIRINGA (ARCHIDENDRON JIRINGA) AND ANTIOXIDANT ACTIVITY." Asian Journal of Pharmaceutical and Clinical Research 11, no. 1 (2018): 346. http://dx.doi.org/10.22159/ajpcr.2017.v11i1.21637.

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Objective: This research was study about phytochemical active phenolic compound from pods of jiringa (Archidendron jiringa (Jack) I. C. Nielsen) and it’s antioxidant.Methods: Pods of jiringa were air dried and macerated with methanol. Extract was evaporated using rotary evaporator, and then, crude extract dissolved with water and partitioned with ethyl acetate. Extracts were evaporated and partitioned again with methanol and n-hexane. Column and preparative chromatography used to separate pure compound. Pure compound as methyl gallate was identificated with data from nuclear magnetic resonance
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Lubis, Misri Yanty, Rikson Siburian, Lamek Marpaung, Partomuan Simanjuntak, and Muhammad Pandapotan Nasution. "METHYL GALLATE FROM JIRINGA (ARCHIDENDRON JIRINGA) AND ANTIOXIDANT ACTIVITY." Asian Journal of Pharmaceutical and Clinical Research 11, no. 1 (2018): 346. http://dx.doi.org/10.22159/ajpcr.2018.v11i1.21637.

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Objective: This research was study about phytochemical active phenolic compound from pods of jiringa (Archidendron jiringa (Jack) I. C. Nielsen) and it’s antioxidant.Methods: Pods of jiringa were air dried and macerated with methanol. Extract was evaporated using rotary evaporator, and then, crude extract dissolved with water and partitioned with ethyl acetate. Extracts were evaporated and partitioned again with methanol and n-hexane. Column and preparative chromatography used to separate pure compound. Pure compound as methyl gallate was identificated with data from nuclear magnetic resonance
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Wajilan, Wajilan, Andrian Fernandes, and Arif Wahyudianto. "Pembuatan Ekstrak Rhizophora mucronata Sebagai Bahan Baku Inhibitor Korosi Skala Lab dan Skala Aplikasi." Jurnal Engine: Energi, Manufaktur, dan Material 5, no. 1 (2021): 11. http://dx.doi.org/10.30588/jeemm.v5i1.777.

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Pembuatan inhibitor dalam bentuk ekstrak pekat dari bahan organik pada skala lab telah banyak dilakukan, namun percobaan dalam skala aplikasi yang lebih besar jarang dilakukan. Bahan organik pembuatan ekstrak pekat dapat menggunakan daun bakau (<em>Rhizopora mucronata</em>) banyak ditemukan di daerah mangrove. Penelitian bertujuan untuk membandingkan proses pembuatan inhibitor berupa ekstrak pekat dari daun bakau skala lab dengan skala aplikasi yang lebih besar terkait waktu pemekatan, daya listrik yang digunakan, sifat fisik (berat jenis dan sifat warna), sifat fitokimia (alkaloid
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Saputra, Tri Reksa, Agustinus Ngatin, and Yunus Tonapa Sarungu. "Penggunaan metode ekstraksi maserasi dan partisi pada tumbuhan cocor bebek (kalanchoe pinnata) dengan kepolaran berbeda." Fullerene Journal of Chemistry 3, no. 1 (2018): 5. http://dx.doi.org/10.37033/fjc.v3i1.26.

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Telah dilakukan penelitian mengenai preparasi Tumbuhan Cocor Bebek sebagai bahan baku untuk uji korosi dengan menggunakan dua metode ekstraksi yaitu maserasi dan partisi. Proses maserasi dilakukan dengan menggunakan pelarut metanol, yang kemudian akan dipekatkan dengan menggunakan rotary evaporator sehingga dihasilkan ekstrak pekat metanol. Tahap selanjutnya adalah proses partisi dengan menggunakan pelarut n-heksan dan etil asetat, dan dari tahapan yang telah dilakukan, dari daun segar Cocor Bebek sebanyak 10,3 kg dihasilkan ekstrak pekat metanol sebanyak 65,7442 g, ekstrak n-heksan sebanyak 3
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Kumaradewi, Dewa Ayu Puspaning, Windah Anugrah Subaidah, Yayuk Andayani, and Ali Al-Mokaram. "Phytochemical Screening and Activity Test of Antioxidant Ethanol Extract of Buni Leaves (Antidesma bunius L. Spreng) Using DPPH Method." Jurnal Penelitian Pendidikan IPA 7, no. 2 (2021): 275. http://dx.doi.org/10.29303/jppipa.v7i2.675.

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Research on phytochemical screening and antioxidant activity testing of the ethanol extract of buni leaves (Antidesma bunius L. Spreng) has been carried out. This study aims to identify secondary metabolite compounds contained in buni leaf plants to see the activity of the ethanol extract of buni leaves using the DPPH method. Buni leaves were extracted in 96% ethanol by maceration method, then evaporated using a rotary evaporator. The results of thick extract were screened for phytochemicals such as phenolics, tannins, flavonoids, saponins, alkaloids, steroids and terpenoids using a qualitativ
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Laut, Meity Marviana, Nemay Ndaong, Filphin Amalo, Larry Toha, and Herlina Umbu Deta. "PROFIL FITOKIMIA EKSTRAK ETANOL DAUN ANTING – ANTING (ACALYPHA INDICA LINN) DI KOTA KUPANG, NTT." JURNAL KAJIAN VETERINER 8, no. 2 (2020): 153–63. http://dx.doi.org/10.35508/jkv.v8i2.3075.

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Acalypha indica Linn is a tropical weed, grows annually in East Nusa Tenggara. The weed is member of Euphorbiaceae family, a largest plant family known as medicinal plant. The weed leaves were used by local people in NTT to treat wounds, diseases or myasis on their livestock. This study aim to investigate the secondary metabolites in A. indica L leaves as a scientific proven for its local use. 
 The extract preparation comprises of several steps, i.e collection of fresh leaves, dry and wet sortation. The clean leaves were air dried in a room temperature for about 2 weeks before grounded i
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Anggriani, Irmawati, Max R. J. Runtuwenen, and Vanda S. Kamu. "Aktivitas Perlindungan Tabir Surya Secara In Vitro Dari Ekstrak Etanol Kulit Buah, Kulit Biji dan Biji Pinang Yaki (Areca vestiaria Giseke)." Jurnal MIPA 6, no. 2 (2017): 46. http://dx.doi.org/10.35799/jm.6.2.2017.17757.

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Penelitian ini bertujuan untuk menguji aktivitas perlindungan tabir surya dari ekstrak etanol kulit buah, kulit biji dan biji pinang yaki secara in vitro. Tahap pendahuluan penelitian ini yaitu menguji nilai SPF (Sun Protection Factor) yang dilakukan secara invitro dengan menggunakan metode spektrofotometri UV-Vis. Serbuk kulit buah, kulit biji dan biji dimeserasi dengan pelarut etanol kemudian dipekatkan dengan rotary evaporator sehingga menghasilkan ekstrak pekat. Ekstrak etanol kulit buah, kulit biji dan biji pinang yaki memiliki nilai SPF yang berbeda yaitu 12,05 , 3,45 , dan 1,00. Dari ni
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Majd, Saeed Samani, Mohammad Hassan Rabie Rad, Zahra Nazari, et al. "Effect of water treatment process on organochlorine pesticide residue levels in Ahvaz water treatment plant 2." Ukrainian Journal of Ecology 7, no. 4 (2017): 349–52. http://dx.doi.org/10.15421/2017_126.

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One of the main hazards of human life and health is the presence of pesticides in the aquatic system is. The Karun River is the surface water source in the preparation of drinking water for the city of Ahvaz city at the Ahvaz Water Treatment Plant (AWTP) #2. This study was done in order to investigate the statue of qualification and the quantification of the contamination of water entering into (AWTP #2) by selected organochlorine pesticides [(α, β, γ, δ )HCH, heptachlor, alderin, dielderin, (op’ , pp’ ) DDT, (α, β) endosulfan and metoxychlor], plus the water treatment effects on these pestici
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34

Marais, J. P., D. L. Figenschou, P. L. Escott-Watson, and L. N. Webber. "Administration in suspension-form of n-alkane external markers for dry matter intake and diet selection studies." Journal of Agricultural Science 126, no. 2 (1996): 207–10. http://dx.doi.org/10.1017/s0021859600073159.

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SUMMARYMilled grass particles were coated with n-alkanes and suspended in a xanthan gum solution. Experiments snowed that grass particles could be coated uniformly with alkanes by means of a rotary evaporator. Further experiments showed that the grass particles, in stable xanthan gum suspension, could be accurately dispensed. The coefficients of variation of the alkane content per dose delivered by means of a dosing gun and syringe were 2·6 and 2·3%, respectively. There was no significant difference between the concentration of faecal alkanes derived from alkanes dosed in suspension-form and a
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Panjaitan, Jesica C. R., and Albinus Silalahi. "PHYTOCHEMICAL SCREENING OF SIJUKKOT EKSTRACT (Lactuca Indica L.)." Indonesian Journal of Chemical Science and Technology (IJCST) 3, no. 2 (2020): 53. http://dx.doi.org/10.24114/ijcst.v3i2.19527.

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Have been carried out Phytochemical screening on Sijukkot which determited as Lactuca indica L, the plant from Gibeon hill forrest area in the village of Parsaora Sibisa Ajibata, Toba Samosir, North Sumatera. Test carried out to determine the composition of secondary metabolites contained in these plants. It was started by extracting plant leaves using 96% ethanol solvent which was carried out by maceration method and concentrated using a rotary evaporator. The concentrated extract obtained was sponsored by phytochemical tests. Phytochemical test results on ethanol extracts from the leaves of
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36

Adahalli, Sachin Basavaraj, and Manjula Talluri. "FORMULATION AND EVALUATION OF TABLET PREPARED BY COAMORPHOUS SYSTEM CONTAINING ANTI-HYPERTENSIVE AND ANTI-HYPERLIPIDEMIC DRUG." International Journal of Pharmacy and Pharmaceutical Sciences 8, no. 9 (2016): 182. http://dx.doi.org/10.22159/ijpps.2016.v8i9.12895.

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<p><strong>Objective: </strong>Amlodipine besylate (AML) and Atorvastatin calcium (ATR) belong to biopharmaceutical classification system (BCS) class II (i.e. low solubility and high permeability) which leads to variable bioavailability. Hence, the aim of this study was to enhance the solubility of both drugs by utilizing the co-amorphous technique. This converted form and physical mixture of both drugs were utilized in the formulation of tablets.</p><p><strong>Methods: </strong>The co-amorphous system was prepared by using rotary flash evaporator. Sol
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37

Widiantini, Fitri, Endah Yulia, and Ceppy Nasahi. "Potensi antagonisme senyawa metabolit sekunder asal bakteri endofit dengan pelarut metanol terhadap jamur G. boninense Pat." Agrikultura 29, no. 1 (2018): 55. http://dx.doi.org/10.24198/agrikultura.v29i1.17870.

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ABSTRACTAntagonism potency of secondary metabolites produced by endophytic bacteria in methanol against pathogenic fungi Ganoderma boninense Pat.The research aimed to determine the antifungal effect of secondary metabolites produced by endophytic bacteria of healthy root oil palm tree against the growth of Ganoderma boninense, the causal agent of basal stem rot disease on oil palm tree. Endophytic bacteria isolates (BEK5, BEK6, BEK7, BEK8, BEK9, BEK10 dan BEK11) were grown on ISP2 agar media for 14 days and extracted using methanol. Following extraction, the methanol was evaporated using rotar
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38

Lowrey, S., and G. Reboux. "Rotary Compressor Performance at Low Ambient Temperatures." International Journal of Air-Conditioning and Refrigeration 28, no. 04 (2020): 2050037. http://dx.doi.org/10.1142/s2010132520500376.

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Small rotary compressors are used in domestic heat pump appliances, for example, in domestic dehumidifiers and heat pump clothes dryers. Compressor performance curves provided by the manufacturer can be based on testing at relatively high ambient temperatures, in some cases as high as 35∘C. This can be much higher compared with the ambient temperature in which the compressor operates when, for example, it is installed in a domestic dehumidifier which can operate in ambient temperatures as low as 10∘C. We have developed a compressor calorimeter to test a small R134a rotary compressor extracted
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39

Yulian, Muammar, and Safrijal Safrijal. "UJI AKTIVITAS ANTIOKSIDAN DAUN BENALU KOPI (Loranthus Ferrugineus Roxb.) DENGAN METODE DPPH (1,1 – Difenil -2- Pikrilhidrazil)." Lantanida Journal 6, no. 2 (2019): 192. http://dx.doi.org/10.22373/lj.v6i2.4127.

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The study about antioxidant activity test of coffee parasite leaves (Loranthus ferrugineus Roxb.) by 1,1-diphenyl-2-pikrilhidrazyl (DPPH) method has been done. The aim of this study was to determine the content and activity of secondary metabolites, flavonoids and antioxidant, which found in the coffee parasite leaves. Dry powder of parasite coffee leaves (Loranthus ferrugineus Roxb.) as much as 0.5 kg were macerated by 2 L of ethanol solvent at room temperature for 4 x 24 hours, then mixed and filtered. Ethanol filtrate was evaporated at 30-40°C by using a rotary evaporator to obtain the crud
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Vijayakumar, Ramya, Siti Salwa Abd Gani, and Nor Fadzillah Mohd Mokhtar. "ANTI-ELASTASE, ANTI-COLLAGENASE AND ANTIMICROBIAL ACTIVITIES OF THE UNDERUTILIZED RED PITAYA PEEL: AN IN VITRO STUDY FOR ANTI-AGING APPLICATIONS." Asian Journal of Pharmaceutical and Clinical Research 10, no. 8 (2017): 251. http://dx.doi.org/10.22159/ajpcr.2017.v10i8.19048.

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Objective: To investigate the in vitro anti-elastase, anti-collagenase, and antimicrobial activities of the red pitaya peel extract for cosmetic application focusing on skin aging.Methods: Extraction was performed by the reflux method for 103 minutes at 56°C with 82% aqueous ethanol solution and the red pitaya peel extract was evaporated using a rotary evaporator. Anti-elastase and anti-collagenase properties were evaluated using the drug discovery kits (neutrophil elastase colorimetric and matrix metalloproteinase-1 colorimetric, respectively). The antimicrobial potential was analyzed using a
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Bangun, Hakim, Fadlina Aulia, Anayanti Arianto, and Marline Nainggolan. "PREPARATION OF MUCOADHESIVE GASTRORETENTIVE DRUG DELIVERY SYSTEM OF ALGINATE BEADS CONTAINING TURMERIC EXTRACT AND ANTI-GASTRIC ULCER ACTIVITY." Asian Journal of Pharmaceutical and Clinical Research 12, no. 1 (2019): 316. http://dx.doi.org/10.22159/ajpcr.2018.v12i1.29715.

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Objectives: The objectives of this study were to prepare the mucoadhesive mucoadhesive gastroretentive drug delivery system of alginate beads containing turmeric extract and to evaluate its anti-gastric effect.Methods: Turmeric extract was made by macerating turmeric powder in ethanol 96% and evaporated using rotary evaporator at 50°C to obtained concentrated extract. Then, it was prepared alginate beads containing 5% turmeric extract by gelation method. The mucoadhesive properties of alginate beads containing turmeric extract were tested in vitro in male rats and the anti-gastric ulcer effect
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42

Bangun, Hakim, Fadlina Aulia, Anayanti Arianto, and Marline Nainggolan. "PREPARATION OF MUCOADHESIVE GASTRORETENTIVE DRUG DELIVERY SYSTEM OF ALGINATE BEADS CONTAINING TURMERIC EXTRACT AND ANTI-GASTRIC ULCER ACTIVITY." Asian Journal of Pharmaceutical and Clinical Research 12, no. 1 (2019): 316. http://dx.doi.org/10.22159/ajpcr.2019.v12i1.29715.

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Objectives: The objectives of this study were to prepare the mucoadhesive mucoadhesive gastroretentive drug delivery system of alginate beads containing turmeric extract and to evaluate its anti-gastric effect.Methods: Turmeric extract was made by macerating turmeric powder in ethanol 96% and evaporated using rotary evaporator at 50°C to obtained concentrated extract. Then, it was prepared alginate beads containing 5% turmeric extract by gelation method. The mucoadhesive properties of alginate beads containing turmeric extract were tested in vitro in male rats and the anti-gastric ulcer effect
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43

Kartikasari, Lanny, Awik Pudji Diah Nurhayati, Edwin Setiawan, et al. "Bioaktivitas ekstrak batang Xylocarpus granatum sebagai anti black spot alternatif pada Litopenaeus vannamei pasca panen." Journal of Tropical Biodiversity and Biotechnology 2, no. 1 (2017): 16. http://dx.doi.org/10.22146/jtbb.16385.

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This research was done to explore bioactivity of Xylocarpus granatum’s stem extract as tyrosinase inhibitor for alternative preventing black spot in Litopenaeus vannamei postharvest. In this research, extraction of bioactive compound from X. granatum stem was done by soaking the stem in 96% methanol for 24h at temperature 29°C. The methanol was evaporated by using rotary evaporator at temperature 50°C. The extract was dilute with distillate water at series of dilutions (10%, 30%, 50%, 70%, 90%, and distillate water as the control), and then immersing L. vannamei into X. granatum’s stem extract
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44

Alkali, Z. D. "Residual Content of Persistent Insecticides in the Fresh Nuts of Cola Acuminata Cohac from Kumbotso Local Government Area of Kano State and Implication for Public Health." Nigerian Journal of Entomology 36, no. 1 (2020): 64–70. http://dx.doi.org/10.36108/nje/0202/63.01.70.

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The pesticide residues in kola nut, Cola acuminata obtained from Mariri Market, Kumbotso Local Government Area, Kano state of Nigeria was investigated. The study consisted of a survey and laboratory analysis of kola nut samples. One hundred structured questionnaires were administered through an open market format in the major kola nut market in the state. In addition, 1kg sample of kola nut was collected randomly from ten major kola nut sellers in the market for analysis. A 100g sample of the kola nut was pounded into paste in a blender of which 50g was soaked in 150mL acetone for 24h. The ext
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45

Soto, Carmen, Paola Poirrier, and María Elvira Zuniga-Hansen. "Total phenolic compounds and antioxidant activity of raspberry pomace extract concentrated using lyophilization and rotary evaporator." New Biotechnology 29 (September 2012): S227. http://dx.doi.org/10.1016/j.nbt.2012.08.639.

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46

Yulia, Rika, and Ivon Sindu Wijaya. "Senyawa Antioksidan Ekstrak Metanol Glycine max (L.) Merr Varietas Detam 1 Hasil Estraksi Ultrasonik." Jurnal Sains Farmasi & Klinis 2, no. 1 (2015): 66. http://dx.doi.org/10.29208/jsfk.2015.2.1.57.

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Penelitian ini bertujuan untuk mengetahui kandungan senyawa antioksidan yang terkandung dalam ekstrak metanol Glycine max varietas Detam 1 hasil dari ekstraksi dengan metode ultrasonik. Ekstraksi dilakukan dengan 2 pelarut yaitu pelarut n-heksan untuk menghilangkan lemak yang mungkin dapat mempengaruhi hasil selama analisis dan metanol 80% untuk mengambil senyawa aktif dalam kedelai. Hasil ekstraksi kemudian dipekatkan dengan Rotary evaporator (BUCHI Rotavapor R-114) dan BUCHI Waterbath B-480. Analisis dilakukan secara kualitatif dengan menggunakan Gas Chromatography-Mass Spectra (GS-MS). Anal
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47

Gemelli, Enori, Fabio Nery, Nelson Heriberto Almeida Camargo, Vinicius André Rodrigues Henriques, and Daiara Floriano da Silva. "Processing Effect on the Compressive Strength and Bioactivity of Ti-Based Composites Produced with TiH2 and Calcium Phosphate." Advanced Materials Research 906 (April 2014): 45–50. http://dx.doi.org/10.4028/www.scientific.net/amr.906.45.

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Titanium-based composites with bioactive phases were produced with TiH2and 10% in volume of calcium phosphate. The mixtures were prepared either by conventional powder metallurgy processing or by ultrasound, dried in a rotary evaporator, pressed at 600 MPa and vacuum-sintered at 1200 °C for 2 hours. Crystal phases of the as-fabricated composites are found to be α-Ti, CaTiO3and TixPyphase (s). The TixPyand CaTiO3phases resulted from the reaction between titanium and tricalcium phosphate at about 1130 °C. Calcium phosphate was better dispersed by ultrasound leading to a higher compressive streng
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48

Yulia, Mega, Rani Anggraini, and Farizal Farizal. "UJI AKTIVITAS SITOTOKSIK EKSTRAK METANOL BUAH KETUMBAR (Coriandrum sativum Linn) TERHADAP ARTEMIA SALINA LEACH DENGAN UJI BSLT (Brine Shrimp Lethality Test)." Jurnal Riset Kefarmasian Indonesia 2, no. 3 (2020): 137–46. http://dx.doi.org/10.33759/jrki.v2i3.72.

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Coriander is a common herb can be used as traditional medicine. One of the expected benefits of Coriander fruits is an anti-cancer. This study aims to determine the cytotoxic activity of Coriander extract (Coriandrum sativum Linn) on shrimp larvae (Artemia salina Leach) with the BSLT (Brine Shrimp Lethality Test) method. Coriander fruits was extracted using methanol solvent and maceration method, then concentrated it with a rotary evaporator until a thick extract. Cytotoxic activity test used methanol extract with several concentration : 1,000 ppm, 100 ppm, 10 ppm, and 1 ppm. The result of thi
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49

Emaikwu, V., I. G. Ndukwe, R. Mohammed, O. R. A. Iyun, and J. V. Anyam. "Isolation and Characterization of Lupeol from the Stem of Tapinanthus globiferus (A Rich.) and its Antimicrobial Assay." Journal of Applied Sciences and Environmental Management 24, no. 6 (2020): 1015–20. http://dx.doi.org/10.4314/jasem.v24i6.11.

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Lupeol, a pentacyclic triterpenoid, was isolated from hexane and ethyl acetate solvent system. In antiquity, the stem and leaf infusion of Tapinanthus globiferus has been used ethno-medicinally as a remedy for stomach ache, diarrhea, dysentery, and wounds. Lupeol isolation from this species was carried out by column chromatography after concentrating the crude extract using a rotary evaporator, and the structure was determined by analysis of the isolate by IR, 13CNMR, 1HNMR, HSQC, and HMBC spectral analysis as well as comparison with reported data. This is the first isolation of lupeol from th
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50

Petrash, V. D., Yu N. Polunin, and N. V. Danichenko. "RANGE OF EXHAUST GASES PRE-COOLING IN THE IMPROVED HEAT PUMP SYSTEM OF HEAT SUPPLY." Bulletin of Odessa State Academy of Civil Engineering and Architecture, no. 83 (June 4, 2021): 139–47. http://dx.doi.org/10.31650/2415-377x-2021-83-139-147.

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The paper studies the range of possible and rational pre-cooling of exhaust gases in an improved heat pump of heating supply system in the development of its previously proposed basic version. The research has established analytical dependences for determining the energy flows of the condenser and evaporator, as well as the energy efficiency of the improved heat supply system. On their basis, a rational range of preliminary cooling of exhaust gases of rotary kilns was revealed, the upper level of which is determined, first of all, by their initial temperature. It has been established that the
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