منابع مشابه
1-Azidoethoxy-2,3,4,6-tetra-O-acetyl-β-d-glucoside
In the title compound, C(16)H(23)N(3)O(10), the galactopyran-oside ring adopts a chair conformation. All the non-H substituents are situated in equatorial positions. There are short intramol-ecular C-H⋯O contacts and an intermolecular C-H⋯O inter-action in the structure.
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The larvicidal activity of the crude petroleum ether, ethyl acetate, acetone, chloroform and ethanol extracts of Amorpha fruticosa seeds was individually assayed for toxicity against the early fourth-instar larva of the mosquito, Culex pipiens pallens after 24 h exposure. Of the tested extracts, the ethanol one exhibited the highest larvicidal activity (LC50 = 22.69 mg/L). Amorphigenin (8'-hydr...
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During studies of the nutritional utilization of pyridoxine 5*-b-D-glucoside, a major form of vitamin B6 in plants, we detected two cytosolic b-glucosidases in jejunal mucosa. As expected, one was broad specificity b-glucosidase that hydrolyzed aryl b-D-glycosides but not pyridoxine b-D-glucoside. We also found a previously unknown enzyme, designated pyridoxine-b-D-glucoside hydrolase, that eff...
متن کاملβ-Glucosidase Catalyzing Specific Hydrolysis of an Iridoid β-Glucoside from Plumeria obtusa
An iridoid β-glucoside, namely plumieride coumarate glucoside, was isolated from the Plumeria obtusa (white frangipani) flower. A β-glucosidase, purified to homogeneity from P. obtusa, could hydrolyze plumieride coumarate glucoside to its corresponding 13-O-coumarylplumieride. Plumeria β-glucosidase is a monomeric glycoprotein with a molecular weight of 60.6 kDa and an isoelectric point of 4.90...
متن کاملThe Presystemic Interplay between Gut Microbiota and Orally Administered Calycosin-7-O-β-D-Glucoside.
Presystemic interactions with gut microbiota might play important roles in the holistic action of herbal medicines in their traditional oral applications. However, research interests usually focus on biologic activities of the in vivo available herb-derived components and their exposure in circulation. In this study, we illustrated the importance of studying the presystemic interplay with gut m...
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ژورنال
عنوان ژورنال: Chemistry of Natural Compounds
سال: 1968
ISSN: 0009-3130,1573-8388
DOI: 10.1007/bf00568552