Nutritional value of protein from Coprinus comatus fruit bodies cultivated using substrates containing Chamaecrasta nictitans.

Coprinus comatus was cultivated on a series of growth substrates in which different amounts of the sawdust component were replaced with Chamaecrasta nictitans.Protein from C.comatus fruit bodies was assessed in terms of six nutritional quality indices - Amino Acid Score (AAS),Chemical Score (CS),Essential Amino Acid Index (EAAI),Biological Value (BV),Nutritional Index (NI) and Amino Acid Ratio Coefficient Score (AARCS).Fruit bodies cultivated using a substrate containing 66.5% sawdust,30% wheat bran,1% sucrose,1% CaCO_3,1% Ca(OH)_2,0.3% KH_2PO_4 and 0.2% MgSO_4 served as controls.The nutritional quality of protein from fruit bodies cultivated on suhstrates containing C.nictitans was superior to protein from controls.Protein from fruit bodies cultivated on a substrate in which the sawdust component had been entirely substituted with C.nictitans was ranked highest in terms of EAAI,BV and NI,second in terms of AAS and AARCS,and had the third-ranked CS value.