以豆渣为基料固态发酵培养美味牛肝菌

Study on Solid Fermented Conditions of Soybean Residue by Boletus edulis

以豆渣为基料通过固态发酵培养美味牛肝菌,对其菌丝体适宜发酵条件进行了优化。试验结果表明:美味牛肝菌菌丝体适宜在豆渣中生长,m(豆渣)∶m(玉米粉)=4∶1、物料含水量为80%、食盐含量为1%、接种量10%、温度28℃、培养7 d发酵效果最佳。发酵后的物料中氨基酸态氮含量达到1.16%,比发酵前提高了9.7倍,粗蛋白含量为5.81%,提高了4.2倍。

The solid fermentation conditions of Boletus edulis through soybean residue were studied. The results showed that Boletus edulis mycelium can grow well in the bean residue. The optimum conditions of Boletus edulis mycelium culture are as following ： the proportion of soybean residue and corn powder is 8： 2, water capacity of material is 80% , the solt content is 1% , inoculation quantity is 10% , fermentation temperature is 28℃ for 7d culture time. The content of amino acid nitrogen is 1. 16% in the fermented material, increased 9.7 times; the content of rough protein is 5.81% ,improved 4.2 times, compared with that of original material.