Except menthyl formate, they all preferentially hydrolyzed short-chain fatty acid esters of menthol with high stereospecificity, which indicated that the two purified enzymes were short-chain fatty acid esters hydrolase. 除甲酸薄荷酯外,均优选短链l-型脂肪酸薄荷酯进行水解。因此,两目的酶都属于短链酯酶。