Tomato contains 20 kinds of carotenoids, such as α-carotene, β carotene, lutein and zeaxanthin, lycopene accounts for about 80% to 90%. We can say that tomato is lycopene, a natural warehouse.
Tomatoes in the heat processing or cooking process, the molecule contains some of lycopene from the trans-double bond into a cis-structure, so that the molecules are bent lycopene-like, easily absorbed. In addition, since lycopene is fat-soluble nutrients, thus cooking oil on the tomatoes or tomato products, topped with oil, easy to absorb lycopene. But the case of lycopene, light, heat and oxygen to break down easily fail, so whether in factories or in domestic cooking, should avoid prolonged high-temperature heating in order to keep the products and dishes more lycopene, thereby enhancing the health effect.
In the lycopene per 100 grams of fruit and vegetables, lycopene content were:
0.2 ~ 20 mg of tomato
2.3 ~ 7.2 mg of watermelon
5.23 ~ 5.50 mg of guava (pink)
0.11 ~ 5.3 mg of papaya
0.35 ~ 3.36 mg of grapefruit (pink)
0.65 ~ 0.78 mg Carrot
0.38 ~ 0.46 mg of pumpkin
0.02 ~ 0.11 mg of sweet potato
0.01 ~ 0.05 mg apricots
Excellent anti-cancer effects out of most of the health care products
Italian scholars in 1994, 2706, digestive tract cancer patients were compared with the 2879 study found that normal, increased tomato intake has a protective effect on the digestive tract. Compared with people who do not eat tomatoes, tomato who eat at least a chance of occurrence of digestive tract cancer can be reduced by 50%.
Harvard School of Public Health study of 48,000 men who eat more than 46 kinds of fruits and vegetables, for a period of 4 years of follow-up study found that eating at least 10 tomatoes per week products, such as tomatoes, tomato sauce and pizza sauce man , reduce the chances of prostate cancer, 34%. Concentrations of lycopene with a lower body than women with high concentration of lycopene in vivo cervical cancer in women is relatively small.
Studies show that domestic and foreign scientists for half a century: the prostate to reduce the concentration of lycopene, making it unable to resist the erosion of free radicals, so that fission occurs, and the aging prostate, there lesions. Because the body can not synthesize lycopene itself, with age, the greater the demand for lycopene from the daily diet is difficult to obtain the intake of the human body needs. Therefore, exogenous lycopene, the most effective means.
In 2000, the University of Chicago Medical School on 1899 middle-aged men 30 years of survey: the lower the lycopene intake, the higher the risk the possibility of prostate disease. Study confirmed that the body of prostate disease and levels of lycopene are closely related. Breakthrough prostate lycopene absorption barrier directly into the gland function. In addition, U.S. Oncology Research Institute, a clinical trial showed that lycopene has a decisive role in the treatment of prostate cancer, lycopene intake in patients who survived the five factors are improved.
Theoretical research from a medical point of view, because the blood lycopene can prevent LDL oxidation, which can reduce atherosclerosis and coronary heart disease risk. Some scholars in 10 countries of the European study concluded, eat at least 40 mg of lycopene containing tomato products (the equivalent of two cups of tomato juice), can significantly reduce serum low-density lipoprotein oxidation and occurrence the risk of coronary heart disease.
Cataracts and age-related macular degeneration eye disease is common in the elderly. According to the University of Wisconsin Marui Si Pal full report, with the low concentration of lycopene in the blood than people with high blood levels of lycopene in age-related macular degeneration have occurred where opportunities can be reduced by 50%.
没有评论:
发表评论