The invention discloses a preparation method of
dry powder and
fungus powder containing
Tricholoma lobayense Heim
oxalate decarboxylase and relates to the field of degradation of
oxalate in stomachs and intestines of human bodies or animal bodies. The preparation method comprises the following steps of: using
Tricholoma lobayense Heim or sibling fungi thereof as raw materials, culturing thalli by adopting a liquid
fermentation method, regulating pH (potential of
hydrogen) of
fermentation solution to 2.0-5.0, inducing to produce
oxalate decarboxylase, collection the
fermentation solution and the thalli, crushing the thalli, conducting
solid-liquid separation to respectively obtain liquid and
solid containing the
Tricholoma lobayense Heim
oxalate decarboxylase, and respectively
drying the obtained liquid and
solid after separation to obtain the
dry powder and the
fungus powder containing the Tricholoma lobayense Heim
oxalate decarboxylase. The
dry powder and the
fungus powder containing the Tricholoma lobayense Heim
oxalate decarboxylase can be used for
oxalic acid removal of food, beverage, feed and the like, can also be used as raw materials to prepare healthcare products or medicines, is suitable for oral taking, can effectively degrade
oxalic acid and oxalate and can prevent or cure
urine oxalic acid excess symptoms and
calcium oxalate calculi.