Plant Mucilages. VIII. Isolation and Characterization of a Mucous Polysaccharide, "Bletilla-glucomannan, "from Bletilla striata Tubers
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چکیده
منابع مشابه
Novel Bibenzyl Derivatives from the Tubers of Bletilla striata
Introduction. – Bletilla striata (Thunb.) Reichb. f. (Orchidaceae) is mainly distributed in East Asia, and its tubers are used as a Chinese traditional medicine for the treatment of tuberculosis and haemorrhage of the stomach or lung [1]. Previous phytochemical studies on Bletilla species have led to the isolation of phenanthrene derivatives [2 – 11], bibenzyls [2] [4], flavonoids and phenolic ...
متن کاملCholesteryl-modification of a glucomannan from Bletilla striata and its hydrogel properties.
A glucomannan-type polysaccharide, named BSP, was obtained from the tubers of Bletilla striata by ultrasonic-assisted extraction, ethanol precipitation, deproteination and gel-permeation chromatography. HPLC analysis revealed that BSP contained mannose and glucose in the molar ratio of 3.5:1. Its molecular weight (Mw) was estimated to be 20 kDa. Methylation analysis, FT-IR and NMR analyses indi...
متن کاملAntiviral activity of phenanthrenes from the medicinal plant Bletilla striata against influenza A virus
BACKGROUND Influenza represents a serious public health concern. The emergence of resistance to anti-influenza drugs underlines the need to develop new drugs. This study aimed to evaluate the anti-influenza viral activity and possible mechanisms of 12 phenanthrenes from the medicinal plant Bletilla striata (Orchidaceae family). METHODS Twelve phenanthrenes were isolated and identified from B....
متن کاملBiocompatibility of Bletilla striata Microspheres as a Novel Embolic Agent
We have prepared Chinese traditional herb Bletilla striata into microspheres as a novel embolic agent for decades. The aim of this study was to evaluate the biocompatibility of Bletilla striata microspheres (BSMs). After a thermal test of BSMs in vitro, the cell biocompatibility of BSMs was investigated in mouse fibroblasts and human umbilical vein endothelial cells using the methyl tetrazolium...
متن کاملSilymarin-Loaded Nanoparticles Based on Stearic Acid-Modified Bletilla striata Polysaccharide for Hepatic Targeting.
Silymarin has been widely used as a hepatoprotective drug in the treatment of various liver diseases, yet its effectiveness is affected by its poor water solubility and low bioavailability after oral administration, and there is a need for the development of intravenous products, especially for liver-targeting purposes. In this study, silymarin was encapsulated in self-assembled nanoparticles o...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1973
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.21.2667