منابع مشابه
AnaLYsIs oF Sucrose FattY AcID Esters
Supercritical uid chromatography (SFC) coupled with triple quadrupole mass spectrometry was applied to the pro ling of sucrose fatty acid esters (SEs). e SFC conditions (column and modi er gradient) were optimized for the e ective separation of SEs. In the column test, a silica gel reversed-phase column was selected. en, the method was used for the detailed characterization of commercial SEs an...
متن کاملWithanolides and Sucrose Esters from Physalis neomexicana.
Four withanolides (1-4) and two sucrose esters (5, 6) were isolated from the aerial parts of Physalis neomexicana. The structures of 1-6 were elucidated through a variety of spectroscopic techniques. Cytotoxicity studies of the isolates revealed that 2 inhibited human breast cancer cell lines (MDA-MB-231 and MCF-7) with IC50 values of 1.7 and 6.3 μM, respectively.
متن کاملStudies on the enzymatic systhesis of dextran from sucrose.
The syntheses of dextrans (l-5) and levans (6-10) from sucrose by enzymes from certain bacteria and the syntheses of glycogens and starches from glucose-l-phosphate by phosphorylases from yeast (11) and animal (12-15) and plant (16, 17) tissues have a fundamental point of similarity in that, with all of them, the substrate contains the basic unit of the final polymer product in the form of a gl...
متن کاملEnvironmental fate and aquatic toxicology studies on phthalate esters.
A comprehensive environmental fate and effects testing program, sponsored by the Chemical Manufacturers Association (CMA) Phthalate Esters Program Panel, has been completed. Based on the results, a preliminary safety assessment has shown that all of the 14 commercially important phthalates tested have sufficiently high safety factors to demonstrate low potential for adverse environmental effect...
متن کاملStorage Studies on Plant Oils and Their Methyl Esters
Esters of plant oils are preferred to parent oils if used as fuels in diesel engines because esterification reduces the viscosity of plant oils and makes it comparable to that of diesel. The present work mainly deals with the effect of storage time on the quality of plant oils and their esters with respect to mainly FFA content, viscosity and change in weight. The study was carried out for a pe...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1964
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.84.12_1210