The fungus was obtained from the air-dried tubers of Pinellia ternate which were collected from the suburb of Nanjing, Jiangsu Province, China, in May 2015. After culturing on potato dextrose agar (PDA) at 28 ℃ for 7 days, sixteen pieces of the agar were transferred into four Erlenmeyer flasks (250 mL) containing 80 mL of potato dextrose liquid medium, which were further incubated at 120 rpm for 6 days to prepare the seed culture. A total of twelve Erlenmeyer flasks (500 mL), each containing 80 g of rice and 120 mL of distilled water were taken for fermentation. All flasks were sterilized at 115 ℃ for 20 min and incubated with 20 mL of seed culture to ferment at 28 ℃ for 30 days.