Apple peel contains many bioactive substances, such as phenols, flavonoids and octacosanol. These bioactive substances can inhibit angiotensin converting enzyme, which leads to hypertension, and help to prevent chronic diseases such as cardiovascular disease and coronary heart disease, and reduce their incidence.
In addition, the intake of apple peel can reduce the incidence of lung cancer. Foreign studies show that apple peel has stronger antioxidant activity than pulp, and the antioxidant effect of apple peel is higher than that of other fruits and vegetables. The antioxidant capacity of an ordinary apple peel is equivalent to 800 mg of vitamin C.
Octadecanol in apple peel also has the function of anti-fatigue and strengthening physical strength. Apple peel can inhibit the enzyme activity of dental plaque and the growth of bacteria in oral cavity, and has antiseptic effect and can protect teeth. It can also make the skin white and tender, prevent the generation of melanin, and have a cosmetic effect.
At present, many manufacturers extract bioactive substances from apple peel to develop functional foods. As a valuable food additive, apple peel powder can be used to produce fortified food. Adding a small amount of apple peel powder can increase the content of polyphenols and flavonoids in food.
As for the disadvantages: toxic substances such as pesticides left on the apple skin may cause cancer if not cleaned, so wash the apples.