The invention relates to a method for preparing
antioxidant active
fungus extracts. The method comprises the following steps of: adding
papain or
neutral protease or
pectinase into
mycelium according to a weight ratio of 1%, and adding
distilled water for homogenate according to the proportion of a weight ratio of 1:10; after enzymolysis for 2 hours at the temperature of 45-50 DEG C and under the pH of 4.5-7.5, directly putting enzymolysis mixed liquor into water bath of 100 DEG C to be extracted for 2 hours, and collecting supernate in a
centrifugation mode; after the supernate is concentrated, adding three times of volume of edible
alcohol for precipitating for 24 hours at the temperature of 4 DEG C, and collecting sediments in a
centrifugation mode; and after the sediments are frozen and dried by vacuum, obtaining freeze-dried
powder of
alcohol insoluble extracts with
antioxidant activity. Compared with a
hot water extraction method, the method for preparing
antioxidant active
fungus extracts has the advantages that the yield of
alcohol insoluble extracts of the
fungus mycelium can be increased by 10.0-74.1%, the
total antioxidant activity of the extracts can be increased by 9.8-78.4%, the
scavenging activity of
superoxide anion radical can be increased by 48.5-192.2%, and moreover the
operation time is obviously shortened and the
energy consumption is reduced. The invention is a simple, high-yield and low-consumption method for preparing high antioxidant active fungus alcohol insoluble extracts.