使用科技论文的语言修改以下内容：Prepare 10 leaf homogenate with physiological saline and take the supernatant to measure antioxidase after centrifugation Each enzyme’s activities were determined using assay kits foll

A 10% leaf homogenate was prepared utilizing physiological saline, and the resulting supernatant was subjected to centrifugation to measure antioxidase. The activities of each enzyme were assessed employing assay kits, in accordance with the guidelines provided by the manufacturer (Nanjing Jiancheng Bioengineering Institute, Nanjing, China).