Extraction and Comparison of Polysaccharide-peptides of Ganoderma lucidum Cultivated with Grass and Wood Log
This research studied the optimal conditions for extracting polysaccharide-peptides from Ganoderma lucidum, and compared the amounts of polysaccharide- peptide and heavy metals of Ganoderma lucidum cultivated with grass and wood log. The polysaccharide-peptide was obtained by water extraction, ethanol precipitation and reserve dialysis. Heavy metals were examined by atom absorptive spectrum and atom fluorescence spectrum. The optimal condition for extracting polysaccharide- peptide from Ganoderma lucidum fruit body was the ratio of sample to water 1:15, temperature 100℃, time 3 hours. The polysaccharide-peptide content in grass-cultivated Ganoderma is 1 to 3 times higher to that in wood log-cultivated Ganoderma. Heavy metals examination shows that Hg and As in the polysaccharide-peptide meet with the requirement, while Pb content is exceed the food standard.
polysaccharide-peptide extraction conditions heavy metal examination
Shu-Qian Lin Shai-Zhen Wang Shu-Guang Lin Zhi-Bin Lin
Fuzhou Green Valley Institute of Bio-pharmaceutical Technology, Fuzhou, China Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
国际会议
2002国际灵芝专题研讨会(International Symposium on Ganoderma Research)
北京
英文
104-108
2002-10-21（万方平台首次上网日期，不代表论文的发表时间）