Superoxide dismutase (SOD),ascorbate peroxidase (ASA-POD),catalase (CAT) and the content of MDA were determined after 7 days.

• 培养7天后测定超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(ASA-POD)、过氧化氢酶(CAT)活性和丙二醛(MDA)含量。