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Isolation and identification of polysaccharide from Tibet STS. a, preliminary separation of STSP from DEAE cellulose; b, STSP-1 was separated and purified by sephadex G-100; c, infrared spectrum analysis of STSP-1; d, results of Congo red with STSP-1. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
