کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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683789 | 889006 | 2009 | 4 صفحه PDF | دانلود رایگان |
The water-soluble polysaccharide (POP), with a molecular mass of 2.4 × 104 Da, was obtained from the fruiting body of Pleurotus ostreatus. Structure features of the purified polysaccharide were investigated by a combination of chemical and instrumental analysis, such as methylation analysis, Smith degradation, GC-MS, 13C and 1H NMR and FTIR. The results indicated that the backbone of POP was composed of (1 → 6)-linked-α-d-galactopyranosyl and (1 → 2,6)-linked-α-d-galactopyranosyl residues, which were terminated with a single terminal (1→)-β-d-glucose residue at the O-2 position of galactosyl along the main chain in the ratio of 1:1:1. Preliminary tests in vitro showed POP is capable of enhancing concanavalin A (ConA)- or lipopolysaccharide (LPS)-induced lymphocyte proliferation, which suggested that POP could be a potential immunostimulating agent for use in functional foods or medicine against both pathogens and cancer.
Journal: Bioresource Technology - Volume 100, Issue 2, January 2009, Pages 983–986