Among 15 FAA tested, the levels of glycine, proline, serine, lysine, glutamic acid and alanine were relatively high, with the corresponding percentages being 16.41%, 15.95%, 13.32%, 7.29%, 6.96% and 6.91%, respectively.

• 15种游离氨基酸中以甘氨酸、脯氨酸、丝氨酸、赖氨酸、谷氨酸和丙氨酸含量较高；其百分组成分别为16.；41%25、15