Yams, the tubers of Dioscorea spp., have been used as health food and herbal ingredients intraditional Chinese medicine. Recently, several beneficial properties of yams were reported in theliterature. The processing parameters, rheological properties of the yam mucilage, improvedphenol-sulfuric acid method to determine the polysaccharide of yam, the extraction ofpolysaccharide and the bioactivities of yam were studied in this paper.
(1) In order to make full use of the fresh yam, for its high cont...