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Polyhydroxylated alkaloids isolated from mulberry trees (Morusalba L.) and silkworms (Bombyx mori L.).
New polyhydroxylated alkaloids, (2R,3R,4R)-2-hydroxymethyl-3,4-dihydroxypyrrolidine-N-propionamide from the root bark of Morus alba L., and 4-O-alpha-D-galactopyranosyl-calystegine B(2) and 3 beta,6Expand
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Polyhydroxylated alkaloids -- natural occurrence and therapeutic applications.
Over one hundred polyhydroxylated alkaloids have been isolated from plants and micro-organisms. These alkaloids can be potent and highly selective glycosidase inhibitors and are arousing greatExpand
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Protective effects of dietary chamomile tea on diabetic complications.
Matricaria chamomilla L., known as "chamomile", has been used as an herbal tea or supplementary food all over the world. We investigated the effects of chamomile hot water extract and its majorExpand
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Alkaloidal components in the poisonous plant, Ipomoea carnea (Convolvulaceae).
Natural intoxication of livestock by the ingestion of Ipomoea carnea (Convolvulaceae) sometimes occurs in tropical regions of the world. Polyhydroxylated alkaloids were isolated from the leaves,Expand
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Characterization of the enzymatic polymerization of 2,6‐linked fructan by leaf extracts from timothy grass (Phleum pratense)
A fructan polymerase activity was partially purified and concentrated by sequential acid and salt precipitation from extracts of excised, illuminated leaves of timothy grass (Phleum pratense). TheExpand
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Antimicrobial activity of pentacyclic triterpenes isolated from African Combretaceae.
Four pentacyclic tritepenes were isolated from Combretum imberbe Engl. & Diels, of which two are novel glycosidic derivatives of 1alpha,3beta,23-trihydroxyolean-12-en-29-oic acid (hydroxyimberbicExpand
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Nanotechnology Takes Roots
Nanoscale particles of zero-valent iron with a trace of noble metal catalyst are punching well above their weight in the area of environmental remediation. Their ability to destroy a wide range ofExpand
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Sugar-mimic glycosidase inhibitors: natural occurrence, biological activity and prospects for therapeutic application
Abstract Alkaloids mimicking the structures of monosaccharides are now believed to be widespread in plants and microorganisms, and these sugar mimics inhibit glycosidases because of a structuralExpand
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