نتایج جستجو برای: ethyl phenylalaninate

تعداد نتایج: 34473  

2017
Youri M. van Nuland Fons A. de Vogel Gerrit Eggink Ruud A. Weusthuis

The AlkBGTL proteins coded on the alk operon from Pseudomonas putida GPo1 can selectively ω-oxidize ethyl esters of C6 to C10 fatty acids in whole-cell conversions with Escherichia coli. The major product in these conversions is the ω-alcohol. However, AlkB also has the capacity to overoxidize the substrate to the ω-aldehyde and ω-acid. In this study, we show that alcohol dehydrogenase AlkJ and...

Journal: :Analytical chemistry 2000
Rivera Poston Uibel Harris

ATR-FT-IR spectroscopy was employed to the study the adsorption of ethyl acetate and 2-propanol to the surface of thin silica sol-gel films in contact with n-heptane solutions. In situ vibrational spectra of silica-adsorbed species provided information regarding the mechanisms of solute retention and elution in normal-phase chromatography. Previous normal-phase chromatographic studies of ethyl ...

Journal: :The Journal of biological chemistry 1990
E A Laposata E H Harrison E B Hedberg

Fatty acid ethyl esters are a family of neutral lipids that are the products of esterification of fatty acids with ethanol. Unlike other pathways of ethanol metabolism, ethyl esters are present in numerous human organs which are the targets of ethanol-induced damage. In the present study, we have shown that fatty acid ethyl esters are synthesized by a hepatoma cell line in tissue culture when e...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1990
mohsen ghalamkar moazzam ahmad shaabani

rearrangement of propargyl amine salt, in the presence of a base was studied and it was concluded that this occurs through an allenic intermediate.

Journal: :Zhong xi yi jie he xue bao = Journal of Chinese integrative medicine 2005
Zhen-Xiao Sun Ying-Hui Zhang Shuang Cheng Qing-Wen Ma Shan-Li Guo Jin-Bao Zhang

OBJECTIVE To screen the anti-tumor fraction of ethanol extracts from Thymus quinquecostatus Celak and investigate its anti-tumor effect on human leukemia cell line. METHODS Ethyl acetate, n-butanol and acetone fractions were separated from the ethanol extracts of wild Thymus quinquecostatus Celak. Growth inhibiting effects of these extracts on human leukemia cell lines K562 and HL-60 were det...

2007
Ioannis S. Elefsiniotis George D. Liatsos Dimitris Stamelakis Antonios Moulakakis

CONTEXT Quizalofop-p-ethyl is an often applied, slightly toxic herbicide for which no severe toxicity has been reported in humans. CASE PRESENTATION We present the case of a farmer exposed to quizalofop-p-ethyl who presented with obstructive cholestasis. A complete workup disclosed no other cause of liver pathology, but liver biopsy established drug-induced hepatotoxicity. The patient was tre...

Journal: :The Journal of international medical research 2008
B K Puri G M Bydder M S Manku A Clarke A D Waldman C F Beckmann

Ultra-pure ethyl-eicosapentaenoic acid (ethyl-EPA), a semi-synthetic ethyl ester of eicosapentaenoic acid, is associated with clinical improvement in motor functioning in Huntington's disease. The aim was to determine the extent to which it might reduce the rate of progress of cerebral atrophy. High-resolution cerebral magnetic resonance imaging scans were acquired at baseline, 6 months and 1 y...

Journal: :Applied and environmental microbiology 1977
N K Pandey K G Gollakota

The effects of ethyl picolinate on germination, outgrowth, and sporulation of Bacillus cereus T were studied in a synthetic medium containing glucose. Ethyl picolinate specifically inhibited at two stages, outgrowth and sporulation. The initiation of germination and cell division was not affected. The inhibition of outgrowth by ethyl picolinate could be reversed by enrichment of inoculum with a...

Journal: :Molecules 2012
Fulgentius N Lugemwa

A solvent system consisting of ethyl acetate, ethyl alcohol and water, in the volume ratio of 4.5:4.5:1, was developed and used to extract, at room temperature, betulin from white birch bark and antioxidants from spices (rosemary, thyme, sage, and oregano) and white oak chips. In addition, under reflux conditions, trimyristin was extracted from nutmeg using the same solvent system, and eugenol ...

Journal: :journal of agricultural science and technology 2011
m. ahemad m. saghir khan

the present study was conducted to determine the plant growth-promoting activities of bradyrhizobium sp. (vigna) strain mrm6 grown in the presence and absence of the selected herbicides, quizalafop-p-ethyl and clodinafop. the herbicide tolerant bradyrhizobium sp. (vigna) strain mrm6 was further tested for bioremediation and plant growth promoting potential using greengram as a test crop, grown ...

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