Polyphenol content and antioxidant capacity of berries: A review

Nowadays in the world (especially in developed countries), increasing very important for human health, nutrition and protection from diseases has attracted consumer demand to foods and raw materials of high nutritional value. Berries, especially members of several families belonging to the best dietary sources of biochemical compounds. They have delicious taste and flavor, economic importance, and because of the antioxidant properties of some useful compounds, therefore, they are of great interest to researchers, nutritionists, and food technology experts. These compounds are responsible individually or in combination. For the various health benefits of berries in order to prevent the onset of chronic diseases and maintain health. In recent years, people's demand for healthy products has increased, in this way, many wild fruit species began to be cultivated in large areas. In particular, studies have focused on strawberries, currants, raspberries, blackberries, and blueberry due to their delicious taste and wide usage areas. These fruits contain high levels of phenolic compounds, anthocyanins, carotenoids, alkaloids, vitamins and have protective effects against health problems including degenerative diseases, cardiovascular diseases, diabetes, obesity and cancer and are recommended for a healthy diet. Such studies need to be developed extensively to detect and preserve important mulberry germplasm and to better understand the importance of such fruit species in the World. Berries, especially members of many families such as Rosaceae and Ericaceae are great dietary sources of biochemical compounds. these compounds (phenolic acids, flavonoids-flavonols, anthocyanins, tannins, and phenolic compounds such as ascorbic acid) are found in large amounts in berries and can function as potent antioxidants and therefore can help in the prevention and reduce of against many diseases including inflammation disorders, cardiovascular diseases, various cancers species. In summary, berries contain large amounts of phenolics and have also a high antioxidant activity and people use intensively in the last time for both healthy and their tastes.