Is apple skin nutritious? The nutritional value and role of apple peel

Is apple skin nutritious? Do you want to peel your apples? Apples should retain the skin of the apple, because the parts of the peel and the flesh connected contain the most vitamins, but in the case of peeling, this part has been discarded. So, what is the nutritional value of apple peel?

1, the role of apple peel

The ursolic acid contained in apple peels not only strengthens muscles, helps in weight loss, but also effectively controls cholesterol and blood sugar levels.

“An apple a day, the doctor is away from me.” The medical profession has repeatedly demonstrated this proverb with facts, but experts have recently reminded those who like to cut off the apple peel: Losing the skin of the apple has caused you to lose a lot of nutrition. The ursolic acid contained in apple peels not only strengthens muscles, helps in weight loss, but also effectively controls cholesterol and blood sugar levels.

With the appearance and age of other diseases, muscle atrophy also appears with a high incidence. Muscular atrophy patients need to stay in hospitals for treatment for a long time. Not only are they unable to return home, they also have to bear huge medical expenses. In order to actively prevent muscle atrophy, Dr. Christopher Adam, an expert specializing in hormones on the body's influence mechanism at the University of Iowa in the United States, began to develop a drug that can make muscles strong and help older people to reduce the risk of fractures. He studied 1300 compounds in detail. According to the principles of gene change during muscle atrophy, he hopes to find a compound that can fight muscle atrophy. As a result, he accidentally discovered this “very interesting compound”—a bear. Acid.

The researchers added a small amount of ursolic acid to the rats' daily diet and conducted a series of health assessments. The results showed that their muscles are getting stronger and more powerful. They also have cholesterol levels and other lipid levels. (High blood lipids can lead to arterial blockage, heart damage) also reduced, and even a lot of weight loss. The experts explained that ursolic acid can enhance the efficacy of insulin and insulin-like growth factor 1, which are just the key to making muscle strong. In an article published in the internationally renowned medical journal Cell Metabolism, Adam said: “In the not yet perfect treatment of muscle atrophy, we speculate that ursolic acid is a potentially effective therapeutic substance that can not only treat muscle conditions. Muscle atrophy caused by age and age can also treat obesity and diabetes."

In addition to apple peel, cranberry, prune and other foods also contain ursolic acid, but the highest concentration in apple peel. Adam said: "If your diet is healthy, you can consume this substance; but if you eat junk food, you certainly can't get it."

Other recent research on Apple found that one apple a day can live longer. Experiments conducted on fruit flies have found that the life span of fruit flies that have ingested apple extracts has increased by 10%, and when they are old, they have more flexible activities and better physical conditions. The researchers' survey of women's daily diet found that people who regularly eat apples every day have a 20% lower risk of heart disease and stroke.

2, nutrition of apple peel

Apple skin contains rich antioxidants and bioactive substances. Eating apple skin is good for health.

The apple peel contains many biologically active substances, such as phenols, flavonoids, and octacosanol. These active substances can inhibit the angiotensin converting enzyme that causes high blood pressure and help prevent chronic diseases. Such as cardiovascular disease, coronary heart disease, reduce its incidence.

The intake of apple peel can reduce the incidence of lung cancer. Foreign studies have shown that apple skin has stronger antioxidant properties than pulp. The antioxidant activity of apple peel is higher than that of other fruits and vegetables. The antioxidant capacity of peel of ordinary size apple is quite similar. The antioxidant capacity of 800 mg of vitamin C.

Octacosanol in apple peel also has the effect of anti-fatigue and physical strength. Apple peel can inhibit the enzymatic activity of tartar and the growth of bacteria in the oral cavity. It has anti-corrosion effect and can protect teeth. Can also make the skin white and tender, prevent the formation of melanin, beauty ergonomics.

By extracting bioactive substances from apple peels to develop functional foods, apple skin meal is a valuable food additive that can be used to produce fortified foods. Adding a small amount of apple skin meal can increase the amount of polyphenols in foods. The content of flavonoids.

It is recommended that when eating apples, it is best to clean and eat with the skin.

3, apple peel cleaning

If you are concerned about the contamination of the apple skin, you can buy the home apple for about 3 days to help volatilize the residual pesticides (if any); before eating, use the salt to rub the apple skin and the dirt will be effectively washed away. And salt has a bactericidal effect.

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