The palatability of 18 carboxylic acids and ascorbic acid (0.1 M) is determined in ninespine stickleback Pungitius pungitius. It is found out that all acids are effective taste stimuli causing an aversive food reaction in fish. Twelve acids have the strongest effect (adipic, valeric, malic, ...
removing OH radicals in the atmosphere, but the contribution of acetone was below 1%. The carbonyls levels in high-air-pollution days were reported. More carbonyl species with higher concentrations were found in high-air-pollution days than in spring. These carbonyls were transported with other pol...
A total of 214 compounds have been identified, belonging to 14 chemical classes: hydrocarbons, alcohols, aldehydes, ketones, esters, lactones, carboxylic acids, oxidized carboxylic acids, aromatics, derivatives of pyrrolizidine alkaloids (PAs), monoterpenes, sesquiterpenes, other terpenoids and ...
Synthesis of End-capped Poly(o-hydroxyamide)s Ueda et al. demonstrated the effect of DBOP as a condensing agent for the chemoselective poly- condensation of polyamides.27, 28 They revealed that polyamides could be prepared readily by the chemos- elective polyamidation of dicarboxylic acids with ...
The infrared spectra revealed the formation of amide linkage between chitosan and carboxylic acids in solid state. The cross-sections of the films produced from malonic acid and acetic acid solutions of chitosan exhibited granular morphologies with different granule sizes and hill-valley-structures under...
TheE. coliB and K-12 strains are among the most frequently used bacterial hosts for the production of recombinant proteins as well as small-molecule metabolites such as amino acids, biofuels, carboxylic acids, diamines, and others. However, both strains have distinctive differences in genotypic ...
A mixture of vinyl esters of acetic acid and another carboxylic acid, for use in the production of copolymers of vinyl acetate with other vinyl esters of carboxylic acids (see Group IV (a)) is prepared by reacting at least ten molar prop... BRICKNELL KENNETH,SOUTHWOOD JOHN 被引量: 0发表...
Esterification of Carboxylic Acid Component Azeotropic esterification of carboxylic acids (ca. 2g) was carried out using dry methanol (20 ml}, dry toluene (1 0 ml), and cone. sulfuric acid (8 drops) according to the procedure of Brewster et al. 11 Reactions of Telomers Elimination Reaction ...
These can be divided into different classes, including (in order of abundance, with the approximate number of compounds) furans (150), pyrazines (100), phenols and ketones (90 in each class), pyrroles (80), hydrocarbons (76), carboxylic acids (60), esters (55), alcohols (50), and ...
374 Influence of some derivatives of pyridine carboxylic acids on structural and functional characteristics of endoplasmic reticulum membranes and fractionated nuclear chromatin of a liver of experimental animals under poisoning with tetrachloromethane and 1,2-dichloroethane - ResearchGate...