Different letters in the same column indicate significant differences (P < 0.05, n = 3). The results were obtained from three parallel tests, and the data were presented as the
mean ± standard deviation.FC, fresh chestnut; BC, boiled chestnut; RC, roasted chestnut; BC-I and BC-IV represented cooking degrees of 30% and 100% of boiled chestnut,
respectively; RC-I and RC-IV represented cooking degrees of 30% and 100%, respectively, of roasted chestnut.