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The characteristics of the proton magnetic resonance spectra of proanthocyanidins and their derivatives are considered. An interrelationship is traced between spectral properties and structural, stereochemical, and conformational factors.
The chemical composition of the catechins, leucoanthocyans, proanthocyanidins, and anthocyans of callus tissue of Gossypium hirsutum L. has been studied in comparison with cotton plants growing under natural conditions. From callus tissue of lines L-29, L-32, and L-35 we have isolated...
The cardiotropic activities of 111 diterpene alkaloids and their synthetic derivatives having lycoctine, heteratisine, napelline, and denudatine skeletons have been studied. It has been established that the overwhelming majority of these compounds exhibit a pronounced antiarrhythmic and...
In a search for biologically active polysaccharides, we have investigated ten species of plants from six families of the flora of the Far East. By successive extractions with water and solutions of ammonium oxalate and of sodium hydroxide we have isolated polysaccharides from the roots and...
An effective agent for precipitating pectin substances from the valves of cotton bolls has been selected.
This review gives a comparative analysis of information accumulated over the past 15 years on the isolation, purification, properties, and use of lipases of microbial origin.
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