نتایج جستجو برای: methyl ester with surfactant use at 2
تعداد نتایج: 11426670 فیلتر نتایج به سال:
Seven new azalomycin F analogs (1-7) were isolated from the broth of mangrove Streptomyces sp. 211726, and respectively identified as 25-malonyl demalonylazalomycin F5a monoester (1), 23-valine demalonylazalomycin F5a ester (2), 23-(6-methyl)heptanoic acid demalonylazalomycins F3a ester (3), F4a ester (4) and F5a ester (5), 23-(9-methyl)decanoic acid demalonylazalomycin F4a ester (6) and 23-(10...
A thorough investigation of the mode of action of Aspergillus niger (4M-147) pectin lyase A (PLA) on differently C(6)-substituted oligogalacturonides is described. PLA appeared to be very specific for fully methyl-esterified oligogalacturonides: removal of the methyl-ester or changing the type of ester (ethyl esterification) or transamidation resulted in (almost) complete loss of conversion. Th...
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
The chemical composition of fatty acid methyl esters (FAMEs) from seeds of S. thymbra and S. cuneifolia were analyzed by GC/MS. 7 FAMEs were identified from the seeds of S. thymbra mainly as 9-octadecenoic acid methyl ester (43.9%), hexadecanoic acid methyl ester (11.4%), 9,12,15-octadecatrienoic acid methyl ester (Z,Z,Z) (30.2%), and octadecanoic acid methyl ester (14.1%), while from the seed ...
Jasmonic acid and its methylated ester (Methyl jasmonate) are widely found in plants, as a natural plant growth regulators. Research results show that the use of exogenous jasmonates, change physiological responses to stress in plants. Chlorid (Cl-) is considered as an essential element in plant growth. A small amount of this substance improves the performance and quality of tobacco leaf, while...
Cytochrome P-450 (P-450)-catalyzed oxidation of 2,6-dimethyl-4-phenyl-3,5-pyridinedicarboxylic acid diethyl ester gives rise to 2,6-dimethyl-4-phenyl-3,5-pyridinedicarboxylic acid monoethyl ester and to 2-hydroxymethyl-6-methyl-4-phenyl-3,5-pyridinedicarboxylic acid diethyl ester, identified in this work. A pyridine hydroxymethyl diester of the sort of the latter compound is novel; under acidic...
The complexation behaviour of an imidazolium based ionic liquid surfactant (ILS) 3-methyl-1-dodecylimidazolium chloride, [C12mim][Cl], and its amide and ester functionalized counterparts 3-(2-(dodecylamino)-2-oxoethyl)-1-methyl-1H-imidazol-3-ium chloride, [C12Amim][Cl], and 3-methyl-1-dodecyloxycarbonylmethylimidazolium chloride, [C12Emim][Cl], with a model protein gelatin (G) in aqueous soluti...
The effect of orally administered prostaglandin E(2) and its synthetic 15-methyl analogues on gastric secretion in man was studied. The parent E(2) compound did not inhibit basal secretion, whereas both the 15 (S) 15-methyl-E(2) methyl ester and its isomer, 15 (R) 15-methyl-E(2) methyl ester inhibited basal acid secretion. This action is likely to be a direct one on the parietal cell, and it co...
abstract this study aimed at investigating the translation of interjections from english into persian in dubbing. to carry out this study the expressive secondary interjections found in the film four weddings and a funeral and their equivalent in persian dubbed version were analyzed through the strategies proposed by cuenca. the descriptive analysis of the corpus showed that (strategy b) i.e...
Synthesis, characterization and antimicrobial studies of Sb(III) complexes of substituted thioimines
Some antimony complexes of a new class of substituted thioimines have been prepared by reacting Ph3Sb (III) with [1-(2-naphthyl) ethyledene] hydrazinecarbodithioic acid phenyl methyl ester (LH), [1-(2-thienyl) ethyledene] hydrazinecarbodithioic acid phenyl methyl ester (LH), [1-(2-pyridine) ethyledene] hydrazinecarbodithioic acid phenyl methyl ester (LH) and [1-(2-furanyl)ethyledene] hydrazinec...
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