bletilla formosana/antibakterinis

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[Antibacterial Activity of Chemical Constituents Isolated from Fibrous Roots of Bletilla striata].

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To investigate the chemical constituents isolated from the fibrous roots of Bletilla striata, and to research their antibacterial activities. The native products were isolated and purified by silica gel, Sephadex LH-20 column chromatography and preparative HPLC. Their structures were elucidated on

Antibacterial stilbenes from the tubers of Bletilla striata.

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Three new bibenzyl derivatives (bletstrins A-C, 1-3), including two bibenzyls that have hydroxyl-substituted chiral centers on the aliphatic bibenzyl bridge, along with eighteen known stilbenoids (4-21) were isolated from the tubers of Bletilla striata. The structures of new compounds were

Antibacterial bibenzyl derivatives from the tubers of Bletilla striata.

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Ten previously undescribed bibenzyl derivatives (bletistrins A-J), including 5 that have hydroxyl-substituted chiral centres on the aliphatic bibenzyl bridge, along with twelve known bibenzyl derivatives, were isolated from the rhizomes of Bletilla striata. The structures of bletistrins A-J were

Antibacterial Biphenanthrenes from the Fibrous Roots of Bletilla striata.

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Four new 9',10'-dihydro-biphenanthrenes, including an unprecedented 1,2'-linked biphenanthrene, 4,7,3',5'-tetramethoxy-9',10'-dihydro(1,2'-biphenanthrene)-2,7'-diol (1), a new 1,3'-linked biphenanthrene, 4,7,7'-trimethoxy-9',10'-dihydro(1,3'-biphenanthrene)-2,2',5'-triol (2), and two new 1,1'-linked

Novel probiotic-bound oxidized Bletilla striata polysaccharide-chitosan composite hydrogel

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As a new strategy for wound management, probiotics are highly sensitive to the external environment during use. In this study, an attempt is made to apply oxidized Bletilla striata polysaccharide (OBSP) hydrogel as a delivery system to put up a physical barrier to probiotics. Bletilla striata, as a

Phenanthrene Antibiotic Targets Bacterial Membranes and Kills Staphylococcus aureus With a Low Propensity for Resistance Development.

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New classes of antibiotics with different mechanisms of action are urgently required for combating antimicrobial resistance. Blestriacin, a dihydro-biphenanthrene with significant antibacterial activity, was recently isolated from the fibrous roots of Bletilla striata. Here, we report the further

The anti-Staphylococcus aureus activity of the phenanthrene fraction from fibrous roots of Bletilla striata.

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BACKGROUND Bletillae Rhizoma, the tuber of Bletilla striata, has been used in Chinese traditional medicine to treat infectious diseases. Chemical studies indicated that phenanthrene was one of the most important components of the herb, with a broad spectrum of antibiotic activity against

Chemical Constituents, Pharmacologic Properties, and Clinical Applications of Bletilla striata.

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Bletilla striata is a plant from the Orchidaceae family that has been employed as a traditional Chinese medicine (TCM) for thousands of years in China. Here, we briefly review the published studies of the last 30 years that were related to chemical constituents, pharmacologic activities, and

Antimicrobial constituents from the tubers of Bletilla ochracea.

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A new 2-(2-methylpropyl)butanedioic acid derivative, bletillin A ( 1), and a new bibenzyl, bletillin B ( 2), together with seventeen known compounds ( 3- 19), were isolated from the tubers of Bletilla ochracea Schltr. Their structures were established by detailed spectroscopic analyses.

Spongy bilayer dressing composed of chitosan-Ag nanoparticles and chitosan-Bletilla striata polysaccharide for wound healing applications.

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The purpose of this study was to develop a promising wound dressing. Though chitosan cross-linked with genipin has been widely used as biomaterials, with the addition of partially oxidized Bletilla striata polysaccharide, the newly developed material in this study (coded as CSGB) showed less gelling

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