在美国召开的一次有关食品的会议上,专家们认为许多食品含有抑制癌的物质。几年前威斯康星大学的Paviza等发现烤牛肉饼含有抑制小鼠皮肤癌发生的物质,现在已鉴定此物质为脂肪酸异构体的混合物,在干酪和其他牛奶产品中也有。这些脂肪酸都是必需脂肪酸亚油酸的衍生物,都含有一个共轭双键系统,统称为共轭亚油酸(CLA)。过去证实过亚油 At a conference on food in the United States, experts think many foods contain substances that inhibit cancer. Several years ago Paviza at the University of Wisconsin found that roasted beef patties contain substances that inhibit skin cancer in mice and has now been identified as a mixture of fatty acid isomers found in cheese and other dairy products. These fatty acids are all derivatives of the essential fatty acids linoleic acid and contain a conjugated double bond system, collectively referred to as conjugated linoleic acid (CLA). The past confirmed that the Asian oil