Abstract:

In this paper, through the determination of protein content and amino acid types and content and a number of protein nutritive value evaluation indexes, the protein nutrition value of Pholiota nameko fruiting body and mycelium was compared and analyzed. The mycelium protein content of Pholiota nameko is 24.35% and the fruit body protein content is 21.80%, respectively. The first limiting amino acids of Pholiota nameko mycelium and fruiting bodies are the sulfur-containing amino acids ( Methionine and Cystine ), and the second limiting amino acids are Isoleucine. The amino acid score (AAS), chemical score (CS), essential amino acid index (EAAI), biological value (BV), nutritional index (NI) and score of ratio coefficient of amino acid (SRCAA) of the submerged cultivated mycelium protein of Pholiota nameko are 62.86, 53.30, 68.39, 62.85, 16.65 and 72.63, compared with corresponding values for fruit bodies are 22.86, 36.33, 36.11, 27.66, 7.87 and 69.26, respectively. The mycelium protein nutritional value of Pholiota nameko higher than that of fruit body protein. Evaluation of protein nutritive value of Pholiota nameko is very intuitive to the protein quality to make standard contrast, and in favor of the further development and utilization of the mushroom.