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.

鸡蛋中的物歧酶（SOD）可以抑制氮蓝四唑（NBT）的光还原，可以根据SOD对NBT光还原的抑制作酶活性的定量定。

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.

释放出的乳酸脱氢酶存在于培养物上清中,可用酶联法30分钟量。这种酶联分析导致四唑盐（INT）转成红色甲臜合物。颜色形成的量与裂解细胞的数目成正比。