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65 articles for “ethyl acetate”
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Design and Control of Ethyl Acetate Production Process
Abstract: In this study, the design and control of ethyl acetate production plant has been investigated. The proposed design consists of a continuous-stirred tank reactor and two distillation columns. Ethanol reacts with acetic acid and gives ethyl acetate and water. Plant-wide operability and control of the entire process plant with decentralized controllers is explained by doing both steady state and dynamic simulations. Tray temperature control loop performance is tested for the …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 1, 2015 · pp. 9–20 Read article
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Chemical Constituents and Tyrosinase Inhibitory Activity of Ethyl Acetate Extract of the Leaves of Morus alba L. from Vietnam
Abstract: AbstractFour compounds (DB1–4) were isolated from the Mulberry leaves (Morus alba L.) collected in Thai Nguyen province by chromatographic methods. These compounds were identified as: Kaempferol-3-O-β-D-glucopyranoside (DB1), quercetin 3-O-α-L-rhamnopyranoside (DB2), isofraxidin-7-O-β -D-glucopyranoside (DB3), and (±) -3, 5, 6, 7, 8, 4’-hexahydroxyflavane (DB4). Their structures were elucidated by spectroscopic methods, including mass spectrometry (MS) and nuclear magnetic resonance (NMR). Compound DB4 was isolated from Mulberry leaves for the first time. Compound …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 8, Issue 1, 2018 · pp. 21–26 Read article
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Curry Leaf Extracts as a Natural Antimicrobial Agent for Eco-Friendly Tomato Disease Control
Abstract: Tomatoes (Solanum lycopersicum) are a vital horticultural crop worldwide, valued for their nutritional and economic importance. However, bacterial diseases significantly threaten yield and quality. This study investigates the antimicrobial potential of Murraya koenigii (curry leaf) extracts as a sustainable alternative to synthetic pesticides. Ethyl acetate, methanol, and aqueous extracts were prepared and tested at 50 and 200 µg/mL against Xanthomonas campestris and Pseudomonas syringae. Ethyl acetate extracts exhibited superior antimicrobial …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 14, Issue 2, 2025 · pp. 54–58 Read article
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Neutralization of Inflammatory Effect of LPS by Premna latifolia Extract in RAW 264.7 Cells
Abstract: Natural compounds of Premna latifolia, extracted using petroleum ether, ethyl acetate and methanol as solvent has dose-dependent effect against inflammatory effect of lipopolysaccharide (LPS) in RAW 264.7 cells. Keywords: Premna latifolia, inflammation, petroleum ether, ethyl acetate, methanolCite this ArticleDevi A. Neutralization of inflammatory effect of LPS by Premna latifolia extract in RAW 264.7 cells. Research & Reviews: Journal of Herbal Science. 2018; 7(3): 1–3p.
Published in Research & Reviews : Journal of Herbal Science · Vol. 7, Issue 3, 2018 · pp. 1–3 Read article
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Free radical scavenging effect of various extracts of Root of Shirisha (Albizia lebbeck (L.)Benth.) by DPPH method
Abstract: The study of antioxidants and free radicals in biology is producing medical revolution that promises a new age disease and health management. The present study was performed to evaluate the in vitro antioxidant effect of the methanol, ethyl acetate, hydro alcohol and water extracts of Albizia lebbeck (L.) Benth. by using DPPH method. The ethyl acetate extract exhibited significant inhibition in DPPH free radical formation with IC50 values of 70.5206. …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 10, Issue 3, 2019 · pp. 12–16 Read article
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Anticancer and Antioxidant Property of Bunium bulbocastanum Fruits Various Fractions
Abstract: Bunium bulbocastanum (family Apiaceae) fruits are normally used as a culinary spice for years. Since antioxidant property has a significant role in preventing oxidative stress, which has been demonstrated to be a major cause in the pathogenesis of cancer, the present study was aimed to evaluate the in vitro antioxidant and cytotoxic effect of Bunium bulbocastanum fruit extracts. Standard in vitro antioxidant assays such as reducing power, super oxide scavenging, …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 3, Issue 1, 2016 · pp. 9–13 Read article
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Evaluation of Biomedical Importance of Papaya Pulp
Abstract: The present study describes the preparation of petroleum ether, ethyl acetate, and methanol extract from Carica papaya; further the extracts revealed dose dependent anti-oxidant potential. Among the extracts, ethyl acetate extract showed more percentage of scavenging than other two extracts. The screening of antimicrobial activity for three extracts revealed antimicrobial potency towards 12 test organisms. Among these extracts, petroleum ether shows more activity against 12 microbes compared with other two …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 7, Issue 3, 2017 · pp. 14–19 Read article
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Phytochemical Screening and Structural Elucidation of Extracts from Garcinia kola (Heckel) Seeds
Abstract: This study evaluated the bioactive components of G. kola seeds extract to further establish its medicinal potentials. Extracts were obtained using different solvents thus; ethanol, methanol, ethyl acetate, acetone, cold and hot water. Phytochemical (quantitative) screening showed that saponins, flavonoids, terpenoids, tanins, glycoside and alkaloids are present in the G. kola extracts: however, the quantities vary with regards to the extraction solvent used. The highest quantity of phenols (35.63±0.06 mg/g) …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 7, Issue 2, 2020 · pp. 23–27 Read article
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Antidiarrheal Activity of Leucaena Leucocephala in Castor Oil Induced Diarrhea in Albino Rats
Abstract: The purpose of the present study was to evaluate scientifically the anti-diarrheal effects of different extracts of leaves of Leucaena leucocephala. Different extracts of Leucaena leucocephala like petroleum ether, chloroform, and ethyl acetate were studied against castor oil induced diarrhea model in albino rats. The weight of the fecal matter induced by castor oil induced diarrhea was recorded as the chief parameter. Standard drug loperamide (1 mg/kg, i.p.) showed highly …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 7, Issue 1, 2020 · pp. 8–12 Read article
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Evaluation of Antioxidant and Cytotoxic activities of Mycelia Biomass and Culture broth of three Edible Mushrooms, Morchella conica, Hericium erinaceus and Pleurotus florida Grown in Submerged Culture
Abstract: Mycelia biomass of three edible mushrooms namely, Morchella conica, Pleurotus florida and Hericium erinaceus were grown as submerged culture in potato dextrose broth supplemented with yeast extract, potassium dihydrogen orthophosphate and magnesium sulphate. The mycelia biomass was extracted with 70% ethanol and culture broth with ethyl acetate. The solvents were evaporated to dryness at low temperature using a rotary vacuum evaporator and the residues thus obtained were used for the …
Published in International Journal of Fungi · Vol. 1, Issue 1, 2024 · pp. 37–50 Read article
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Formulation and Evaluation of Microencapsulated Levofloxacin Gel
Abstract: To treat various buccal infectious diseases, a sustained release microencapsulated levofloxacin gel was formulated. Levofloxacin microspheres were being prepared following o/w emulsion solvent evaporation technique by varying concentrations of ethyl acetate, ethyl cellulose and tween 80. Depending on their flow properties almost all the microspheres were found to be excellent. The drug-excipient compatibility study carried out using Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) resulted that the …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 3, Issue 1, 2016 · pp. 39–47 Read article
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Analysis of Diethanolamide Reaction by using FTIR Technique
Abstract: The purpose of this work is to study the amidification reaction for production of diethanolamide from ethyl acetate and diethanolamine by using sulfuric acid catalyst. The amidation, which is the reaction between ethyl acetate and diethanolamine, was held in a glass batch reactor with mole ratio 1:1 using acid catalyst (H2SO4) 0.5% (w/w) and 200 rpm stirring. The reaction temperature is 160°C constant, and sampling was performed after every 30 …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 1, 2016 · pp. 7–10 Read article
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In vitro Antibacterial Activity of Averrhoa carambola Leaf Extracts
Abstract: The aim of the present study was to determine the phytochemical constituents and antimicrobial potential of Averrhoa carambola leaf extracts against three gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus and Streptococcus mutans) and three gram-negative bacteria (Klebsiella pneumoniae, Proteus vulgaris and Pseudomonas aeruginosa) which are some of the infectious bacteria. The A.carambola leaves were extracted in three different solvents of increasing polarities (hexane, ethyl acetate, and acetone). The phytochemical analysis showed …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 2, 2018 · pp. 27–32 Read article
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Development of PLLA-based Bio Inks Applicable in the Medical Field
Abstract: Some synthetic polymers, such as Poly (L-lactic acid) (PLLA), are interesting to use in 3D bioprinting because they can have adaptable and resilient mechanical properties that also facilitate bioprinting processes. PLLA is a biocompatible polymer which makes it very interesting for medical applications, it is an aliphatic polyester obtained from α-hydroxy acids in different ways: ring-opening polymerization, and direct polycondensation. The use of one path over the other depends on …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 24, Issue 2, 2022 · pp. 38–46 Read article
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In vitro Antioxidant Activity of Calotropis Procera
Abstract: Antioxidant activity of root of Calotropis procera extract was evaluated in a series of in vitro assay involving free radicals. IC50 values were determined. Extracts of I. coccinea exhibited scavenging effect in concentration dependent manner in all in vitro method. IC50 of ethyl acetate extract was 48.43, 75.811 and 60.60 μg/ml for 2,2-diphenylpicrylhydrazyl radical scavenging, hydrogen peroxide scavenging, and nitric oxide scavenging, respectively. Ethyl acetate extract shows good in vitro …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 4, Issue 2, 2014 · pp. 11–14 Read article
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Exploring the Bioactive Potential of Himalayan Lichens: Phytochemical and Antimicrobial Profiling of Xanthoparmelia tinctina and Pyxine subcinerea Extracts
Abstract: The symbiotic association that develops between cyanobacteria, algae, and fungi results in the composite organism known as lichens, which has traits similar to those of plants but differs in its separate parent organisms. Lichens can have a variety of morphological characteristics, including foliose structures that resemble flat leaves, crustose structures that resemble flake crystals, fruticose branches that have short, leafless branches, and leprose-powder-like appearances. Due to their therapeutic potential, lichens …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 14, Issue 2, 2024 · pp. 21–28 Read article
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Phytochemical Screening and In Vitro Antibacterial, Antiarthritic Activity of Leaves of Azima tetracantha
Abstract: The leaves of Azima tetracantha belongs to (salvadoraceae) commonly known as “mulluchangu” in Tamil, it is a best known medicinal plant from ancient period. The plant has reported for many pharmacological actions such as antifungal, antibacterial, hepatoprotective, anti-inflammatory, antiulcer, antiarthritic, hypolipidemia, etc. The aim of the present study was to investigate Phytochemical screening and in vitro antibacterial and anti-arthritic activity of Azima tetracantha leaves in different solvents extract (hexane, chloroform, …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 4, Issue 3, 2017 · pp. 6–12 Read article
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Antibacterial Property of Crocus Sativus L.
Abstract: ABSTRACTCrocus sativus commonly called saffron has been used widely in Middle East and South East Asia as a drug to promote health and to fight diseases. Saffron though cultivated in different parts of the world, is mainly cultivated in Iran. It has wide range of medical uses such as antitumor, antifungal and antiinflammatory activities. Characteristic components of saffron are crocetin, picrocrocin and safranal that are responsible for color, bitter taste, …
Published in Research & Reviews : Journal of Herbal Science · Vol. 1, Issue 1, 2012 · pp. 17–23 Read article
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Evaluation for Diuretic Activity of Abutilon indicum and Amaranthus spinusus Leaves Extracts
Abstract: The diuretic activity of Abutilon indicum and Amaranthus spinusus leaves was studied. The fractions of ethanol and methanol showed significant increase in the urine elimination, while ethyl acetate fraction does not show diuretic activity. All the groups were compared to the control group; frusemide was used as reference standard drug in this screening activity. The phytochemical screening study showed the presence of flavonoids, saponins, terpenoids, and steroid content in both …
Published in Research and Reviews: A Journal of Toxicology · Vol. 7, Issue 2, 2017 · pp. 12–15 Read article
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Design and Control of Acetaldehyde Production Process
Abstract: This paper discusses the steady state and dynamic simulations of acetaldehyde production process by using Aspen Plus and Aspen Dynamics. The model developed in the present study is the modification of the process developed by Eastman Chemical Company of U.S. Patent 6,121,498. The proposed design consists of a FEHE (feed effluent heat exchanger), reactor, absorption column, compressors and two distillation columns. Acetic acid reacts with hydrogen and gives acetaldehyde as …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 11–21 Read article