Banana peel melanin may be a polyphenol substance, which is converted into hydroxyquinone by polyphenol oxidase and then polymerized to form a catechol melanin. Plant polyphenol polymer is an important biological antioxidant, so banana peel melanin has lipid peroxidation.

Banana peel is rich in protein, fat, sugar and more than ten elements such as potassium, calcium, magnesium, sulfur, iron and zinc, which can be used as potential resources and raw materials.

Extended data:

Improve sleep

Serotonin in banana peel is closely related to the good circulation of sleep and awakening. When awake and active, the level of serotonin in the brain is the highest, but it hardly exists when entering the deep sleep stage.

During sleep, the level of melatonin in the human body increases sharply. Melatonin production depends on the synthesis of its pineal gland, which is powered by serotonin. Although light can increase the secretion of serotonin, darkness can promote the synthesis of melatonin. These two neurotransmitters are the key to maintain the sleep cycle.

release pressure

Nerve cells need the help of serotonin to transmit information, and the human body usually uses tryptophan in food to synthesize serotonin, and there are also a lot of tryptophan in banana peel. The researchers asked some volunteers to eat foods rich in tryptophan or lacking tryptophan on different days, and then used some pictures to arouse anger in their brains, and used magnetic resonance imaging technology to observe the internal reactions of their brains.

The results show that when tryptophan deficiency leads to low serotonin content, it is more difficult to suppress the anger reaction of the brain. The observation of brain activity shows that when the serotonin content is low, the signal connection between the frontal lobe and amygdala in the brain will be weakened.

The amygdala is associated with anger, and signals from the frontal lobe can help control this anger. Therefore, without serotonin as a messenger, it is difficult for the "rational" frontal lobe to control the "angry" amygdala. This study finally discovered the mechanism that serotonin acts as a messenger between the brain parts responsible for reason and anger.

Therefore, people who get angry easily should eat more tryptophan-rich foods in their daily lives to increase the content of serotonin in their brains, such as nutritional supplements such as dark chocolate, almonds, yogurt, whole wheat bread, bananas or banana peel extracts.

Baidu encyclopedia-banana peel

People's Network-Don't throw away the "baby" banana peel.