Polysaccharide (DOPA) from the stem of D. officinale, as well as two fractions (DOPA-1 and DOPA-2) of it, were isolated and purified by DEAE cellulose-52 and Sephacryl S-300 chromatography, and their structural characteristics and bioactivities were investigated. The average molecular weights of
In this study, a novel lactic acid probiotic named Bacillus sp. DU-106 was introduced to ferment Dendrobium officinale (D. officinale) polysaccharides, and the effects of such process on the structure and immunostimulatory activity of D. officinale polysaccharide were investigated. Three
The present work aimed at investigating the pattern recognition receptor (PRR) and immunostimulatory mechanism of a purified Dendrobium huoshanense polysaccharide (DHP). We found that DHP could bind to the surface of macrophages and stimulate macrophages to secrete NO, TNF-α and IL-1β. To unravel
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