Abstract:

The protein nutritional value of Grifola frondosa fruitbodies cultivated by three kinds of waste-resource composts and white Grifola frondosa fruit-bodies cultivated by five kinds of waste-resource composts were analysed with the international protein evaluation methods. The results showed that: (1) The protein contents of Grifola frondosa and white Grifola frondosa fruitbodies are high (average protein content is 22.95%), average amino acid total quantity is 17.51%, and these are higher than L. edode fruit bodies but obviously different among Grifola frondosa and white Grifola frondosa cultivated by different composts. EAA/TAA value is 0.39～0.44，the EAA/NEAA value is 0.75，conforms to the requirement of FAO／WHO ideal protein． (2) In CS、AAS、EAAI and BV, Grifola frondosa and white Grifola frondosa are better than L. edode, and composts donot obvious affect on these indexes; in NI, Grifola frondosa and white Grifola frondosa cultivated by sawdust, com stalk and mulberry branch composts are better than L. edode, and white Grifola frondosa cultivated by cottonseed hull and Bauhinia variegata composts worse than L. edode; in SRCAA all Grifola frondosa and white Grifola frondosa are slightly lower than L. edode, and outclass straw mushroom and Agrocybe Chaxingu huang.