Bananas blackened in the middle is rotten, can not eat
Blackened skin can be eaten.
Banana peel melanin is mostly polyphenols, polyphenol oxidase under the action of hydroxyquinone, and then the formation of a catechol-type melanin. Plant polyphenolic polymers are important biological antioxidants, so banana peel melanin has a lipid peroxidation effect. Determination of lipid antioxidant effects has become a common method for elucidating the mechanism of action of anti-aging substances.
Extended data:
Suitable and contraindicated:
Suitable for the crowd
Banana prolongs the life of the young and old, and is the preferred choice of dieters. It is suitable for fever, dry mouth and thirst, laryngeal cancer, dry stools, hemorrhoids, anal fissure, blood in the stool, cancer patients and radiotherapy, chemotherapy consumption; suitable for upper gastrointestinal ulcers, tuberculosis, intractable dry cough consumption; suitable for drinking too much alcohol and the alcoholic drinker is not resolved consumption; suitable for hypertension, coronary heart disease, arteriosclerosis consumption; at the same time, constipation, indigestion, and other symptoms, has a good effect; suitable for steatorrhea and toxic dyspepsia consumption. It is also suitable for people with steatorrhea and toxic dyspepsia.
Indisposed people
1: the body of the cold
Banana cold body of the cold is best to avoid, like stomach cold, cold, nephritis, do not eat bananas, the above patients if you eat bananas is not conducive to the health of the body. There are patients with swollen feet during pregnancy, it is also best not to eat bananas.
2: fasting people
Bananas can promote gastrointestinal tract peristalsis, if eaten on an empty stomach will cause the stomach and intestines to work in advance, long-term fasting bananas are not conducive to good health. Why can not eat bananas on an empty stomach? Because there is almost no food available for digestion in the stomach and intestines during fasting, eating bananas on an empty stomach will accelerate the movement of the stomach and intestines, promote blood circulation, enhance the load on the heart and easily lead to myocardial infarction.
References:
Baidu Encyclopedia - Bananas