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人体或动物在代谢过程或因环境污染而产生自由基,具有强氧化性,可引发连琐的氧化反应,使生物膜产生过氧化脂质,损伤机体、易发心脏病、动脉硬化、癌症等并促进衰老。抗氧化剂可清除自由基、中断或终止其氧化反应,预防因自由基引起的疾病,并延缓衰老。近年来国外日益重视从植物中寻找抗氧化剂并已取得一定进展。
Human or animal in the metabolic process or due to environmental pollution and generate free radicals, with strong oxidizing, can lead to trifurous oxidation reaction, the biofilm lipid peroxidation, damage the body, prone to heart disease, arteriosclerosis, cancer, etc. And promote aging. Antioxidants can scavenge free radicals, interrupt or stop their oxidation, prevent diseases caused by free radicals, and delay aging. In recent years, foreign countries have paid increasing attention to looking for antioxidants from plants and have made some progress.