Superoxide dismutase(SOD) in eggs can inhibit the photoreduction of nitro-blue tetrazolium (NBT).Thisreaction can be used to quantitatively determine the enzyme activities of SOD.

鸡蛋中超氧化物歧化酶（SOD）抑制氮蓝四唑（NBT）光化还，根据SOD对NBT光化还抑制作酶活性定量测定。

Released LDH in culture supernatants is measured with a 30-minute coupled enzymatic assay, which results in the conversion of a tetrazolium salt (INT) into a red formazan product.

释放出脱氢酶存在于培养物上清中,用酶联检测法30分钟测量。这种酶联分析导致四唑盐（INT）转化成红色甲臜化合物。颜色形成量与裂解细胞数目成正比。