Hericium erinaceus was purchased from the Yongding Ecological Farming Family Farm, Ningqiang County, Hanzhong City, Shaanxi Province.
Saliva α amylase (2000 U/g) was obtained from Omega, Cheyenne, WY, USA. Pepsin (250 U/g), pancreatic enzymes (10 U/g), fructose oligosaccharide, salt acid, concentrated sulfuric acid, sodium hydroxide, sodium chloride, ferrous sulfate heptahydrate, manganese sulfate, zinc sulfate heptahydrate, cobalt chloride hexahydrate, nickel chloride, copper sulfate pentahydrate disodium phosphate, potassium chloride, urea, magnesium chloride hexahydrate, calcium chloride dihydrate, metaphosphate, sodium sulfate, acetic acid standard, propionic acid standard, and butyric acid standard were obtained from Sinopharm Group Chemical Reagent Co., Ltd., Shanghai, China. All other chemical reagents were of analytical grade and procured from Aladdin Chemical Reagent Co., Ltd. (Shanghai, China).
Saliva α amylase (2000 U/g) was obtained from Omega, Cheyenne, WY, USA. Pepsin (250 U/g), pancreatic enzymes (10 U/g), fructose oligosaccharide, salt acid, concentrated sulfuric acid, sodium hydroxide, sodium chloride, ferrous sulfate heptahydrate, manganese sulfate, zinc sulfate heptahydrate, cobalt chloride hexahydrate, nickel chloride, copper sulfate pentahydrate disodium phosphate, potassium chloride, urea, magnesium chloride hexahydrate, calcium chloride dihydrate, metaphosphate, sodium sulfate, acetic acid standard, propionic acid standard, and butyric acid standard were obtained from Sinopharm Group Chemical Reagent Co., Ltd., Shanghai, China. All other chemical reagents were of analytical grade and procured from Aladdin Chemical Reagent Co., Ltd. (Shanghai, China).