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以自组建的食源性血管紧张素转化酶(angiotensinI-convertingenzyme,ACE)抑制二肽为研究样本,采用氨基酸描述子VHSE(principal component score vector of hydrophilicity,steric,and electronic properties)对ACE抑制二肽进行表征后,比较偏最小二乘(partial least square regression,PLS)、支持向量机(support vector machine,SVM)及主成分分