Abstract:

By using national standard method,the contents of crude protein,crude fat,crude fiber,soluble sugar,amino acids,minerals,vitamins,polysaccharide of active substance and heavy metals in three edible mushrooms,Floccularia luteovirens,Lentinula edodes and Agaricus bisporus were simultaneously determined and compared with each other.The edible,nutritional and medical values of F.luteovirens in Tiber plateau were evaluated.The results demonstrated that comparing with L.edodes and A.bisporus,F.luteovirens in Tiber plateau was richer in crude protein,amino acids,minerals,Vitamin B₁,B₂,Vitamin C and Vitamin E.In addition,the content of crude polysaccharide in F.luteovirens was higher than in that of L.edodes and lower than in that of A.bisporus.The contents of four heavy metals of Pb,Cd,As and Hg in F.luteovirens were far higher than in that of L.edodes and A.bisporus.In conclusion,as a precious and rare mycorrhizal edible fungus,F.luteovirens is especially worthy of being developed and utilized in the future.However,it deserves special attention that the contents of heavy metals exceed the national standard.

Key words: Floccularia luteovirens, edible mushroom, nutritive components, nutrition determination, Tibet Plateau