The invention discloses a
Hirsutella hepiali Chen et Shen
fungus which can be fermented at normal temperature, the
fungus in systematics is named as (
Hirsutella hepiali Chen et Shen)BS-1, and is mutagenized by the following method:
protoplast is extracted from
Hirsutella hepiali Chen et Shen strain which is separated from the stroma of the natural
Cordyceps sinensis(Berk)Sacc., and the
protoplast is irradiated by a 15-60W
ultraviolet lamp at a place which is 10-50cm from the
ultraviolet lamp for 1-300s, inoculated on MYG
reproduction culture medium and cultured in a thermotank at the temperature of 25-28 DEG C; the mutagenized and cultured strains are inoculated in
fermentation medium and acclimatized at the temperature of 25-28 DEG C for ten generations, and the contents of the
active components are determined, the strains which grow well and have
high strain powder yield and high contents of the
active components are selected, and finally the Hirsutella hepiali Chen et Shen
fungus strain which can be fermented at normal temperature is obtained. The invention also discloses a
mutagenesis breeding method of the fungus and a
fermentation process. The Hirsutella hepiali Chen et Shen strain can rapidly grow at normal temperature with short
fermentation period and low production cost, so that the product has greater market competitiveness.