WWCJThe WWCJ media used in this study were kindly provided byOuyakuang food Co., Ltd., Hebei, China. The WWCJ was dilutedwith water to a concentration of 200 g/L, and the pH of the WWCJwas adjusted to 1 by addition of 9 M sulfuric acid. Hydrolysis was performed at 60, 70, 80 and 90◦C