用科技论文语言改写以下内容：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 follow

A 10% leaf homogenate was prepared utilizing physiological saline, from which the supernatant was extracted post-centrifugation for antioxidase measurement. The activities of each enzyme were evaluated through the utilization of assay kits, in accordance with the guidelines provided by the manufacturer (Nanjing Jiancheng Bioengineering Institute, Nanjing, China).