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根据癌生长的游离基团理论的推理,抗氧化剂已被认为发挥着一种抗致癌物质的作用,这种作用是通过以下三种过程显示出来的,即①经过体内氧化过程抑制致癌物的活性;②稳定致癌物或辅致癌物(例如多环饱和脂肪酸)的潜在预兆;③对遗传毒性游离基团起清除剂的作用。食物中高浓度的抗氧化剂丁基羟基茴香醚(BHA)和2-丁基羟基甲苯(BHP)可防止化学上诱发的动物肿瘤,
Based on the theory of free radical growth in cancer, antioxidants have been suggested to act as anti-carcinogens, which is demonstrated by the following three processes: (1) Inhibition of carcinogenic activity through an in vivo oxidation process ; (2) a potential precursor to stabilizing carcinogens or co-carcinogens (eg polycyclic saturated fatty acids); and (3) acting as a scavenger on genotoxic free radicals. High levels of antioxidants in foods, such as butylated hydroxyanisole (BHA) and 2-butylated hydroxytoluene (BHP), prevent chemically-induced tumor formation in animals,