The mycorrhizal fungus mother of stinky tofu is Trichoderma reesei. Trichoderma species can be used to make hairy tofu, curd, moldy tofu, moldy thousand sheets, moldy soybean dregs, stinky tofu and so on.

Mycorrhizal fungus strain can grow at about 10-38 ℃, the appropriate temperature at 20-25 ℃. The mycelium of this strain is white and dense like rabbit hair, which can grow vigorously on the tofu and make the curd with excellent flavor.

Principle of action of Trichoderma: in the fermentation process of tofu, Trichoderma produces protease will be broken down into peptides and amino acids in the tofu protein. Tofu billet inoculated with Trichoderma viride, after cultivation and reproduction, the secretion of protease, amylase and other complex enzyme system, in a long period of post-fermentation and drowning billet seasoning enzyme system, yeast, bacteria and other synergistic effect, so that the billet of fermented bean curd protein hydrolysis slowly, generating a variety of amino acids, coupled with the microbial metabolism of a variety of organic acids, and the role of alcohols to generate esters, the formation of delicate, fresh and fragrant characteristics of the milk of the bean curd.

The hairy mold strains are divided into two kinds, one watered-down spraying, suitable for large area manufacturers spraying use. Straight sprinkle type white powder suitable for small area use. The efficacy of the two are not similar, directly sprinkled hairy mold grow hairy bacteria more lush.