An 84% decrease in the level of antioxidant ‘flavanol’… It is due to ‘polyphenol oxidase (PPO)’ that lowers the absorption rate.
Enter 2023.08.26 16:10 Views 27,104 Enter 2023.08.26 16:10 Edit 2023.08.26 23:20 Views 27,104
Research has shown that making a smoothie by mixing banana with other fruits such as blueberries has drastically reduced health effects. [사진=게티이미지뱅크]A study has found that mixing bananas into fruit drink smoothies can reduce the health benefits.
A research team at the University of California, Davis (UC Davis) found that when bananas were mixed with other fruit smoothies, the level of flavanols, which are good for health, was lowered by 84%. The research team said, “This was analyzed because ‘polyphenol oxidase (PPO), which is abundant in fruits and vegetables, prevents polyphenol from being absorbed into the body.”
A fruit drink ‘smoothie’ is a drink made by freezing and grinding fresh fruit to give it a sweet taste. In addition to fruit, you can add crushed ice, frozen fruit, or frozen yogurt.
According to the research team, flavanols are bioactive compounds that are good for cognitive health such as heart health and memory. Apples, pears, blueberries, blackberries, grapes, cocoa, etc. have a lot. The research team picked bananas and beet greens as representative foods that contain a lot of polyphenol oxidase. The leaves of beets, a root vegetable, have a texture similar to that of spinach.
When you peel a banana or cut an apple, these fruits will soon turn brown. This “browning” is caused by polyphenol oxidase (PPO), an enzyme naturally present in food. This occurs when fruits containing this enzyme are exposed to air, cut, or nicked.
The research team had some of the participants (experimental group) drink a smoothie made of banana and a mixture of berries. Another portion (control group) was given flavanol capsules. The research team analyzed their blood and urine samples to measure the levels of flavanols in their bodies. As a result, it was found that the level of flavanol in the body of the experimental group was 84% lower than that of the control group.
Researcher Javier Ottaviani (Nutritionist), the first author of the study, said, “I was surprised to see that the level of flavanols in the body dropped significantly in an instant because of the low absorption rate even after adding one banana.”
The American Academy of Nutrition and Dietetics recommends taking 400 to 600 mg of flavanols daily for cardiovascular health. Researcher Ottabierny said, “PPO It is better not to make a smoothie by mixing bananas and beet leaves with high activity and pineapple, orange, mango, yogurt, etc. with low PPO activity.”he emphasized.
UC Davis Internal Medicine, King Saud University and University of Reading also participated in this study. The results of this study (Impact of polyphenol oxidase on the bioavailability of flavan-3-ols in fruit smoothies: a controlled, single blinded, cross-over study) were published in the international journal ≪Food and Function≫.
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2023-08-27 08:31:31
