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梨是很多人喜爱的水果,它不但鲜嫩多汁,并且含有丰富的维生素、膳食纤维和钙、磷、铁、碘等微量元素。经常吃梨,不仅能预防便秘,还能促进人体内致癌物质的排出。研究员对吸烟者进行了试验,让他们在4天内连续每天吃750克梨,并测定吃梨前后尿液中多环芳香烃的代谢产物1-羟基芘含量。结果发现,吸烟6小时后吃梨,人体血液内1-羟基芘会经尿液大量排出;如果不吃梨,1-羟基芘排出很少。而加热的梨汁含有大量的抗癌物质多酚,给注射过致癌物质
Pear is a favorite fruit of many people. It is not only fresh and juicy, but also rich in vitamins, dietary fiber and trace elements such as calcium, phosphorus, iron and iodine. Often eat pear, not only can prevent constipation, but also promote the body’s carcinogenic substances. Researchers tested smokers so that they ate 750 grams of pears daily for four days and determined the 1-hydroxy-pyrene content of the polycyclic aromatic hydrocarbons metabolites in the urine before and after eating pears. The results showed that smoking 6 hours after eating pear, 1-hydroxy-pyrene within the human body will be excreted by the urine; if not eat pear, 1-hydroxy-pyrene discharge rarely. The heated pear juice contains a lot of anti-cancer substances polyphenols, to injection of carcinogens