The extracts were passed through cation exchange resin Zerolite 225 and anion exchange resin Amberlite IRA-400 to separate them into organic acids, amino acids and sugars.

• 提取液通过阳离子交换树脂 Zerolite 225及阴离子交换树脂 AmberliteIRA-400,以分离出有机酸、氨基酸及糖三类化合物。