Blueberry extract

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Blueberries, which belong to Ericaceae Vaccinium, are either perennial deciduous plants or evergreen shrubs with white or pink flowers. The fruit of blueberry is dark blue with fruit peel covered by a layer of white powder. It is a rare blue food. Blueberries are rich in many kinds of antioxidants which have many health effects such as antioxidant effects, can prevent cancer, relieve visual fatigue, and improve immunity. Blueberry, as a first-class health food, is taken as the third-generation fruit after apple and citrus fruit. It is also one of the five health foods humans.
[Distribution and cultivation] Cranberries originate from North America where the blue fruit cranberries are cultivated at the largest scope, commonly known as blueberries. The history of blueberry cultivation is relative short. The earliest domestication (1908) began in the United States. China had begun introduced and domesticate blueberry for cultivation since the 1980s. There are more than 130 species of cranberries which distributed mainly in the Northern Hemisphere from the Arctic to the tropical mountain areas. China has about 20 species which are widely distributed in the Northeast and Southwest Mountains. Blueberries can be divided into cultivated and wild species. In North America, the most commonly cultivated varieties are Northern highbush blueberry. Chile is the world's second largest exporter of blueberries, second only to the United States.
[Chemical composition] Blueberries are rich in many kinds of nutrients such as protein, fat, minerals, vitamins and a large number of biologically active substances including anthocyanins, flavonoids, polyphenols which can be processed into both nutrient-rich blueberries food and having health benefits. It is a kind of berry combined with nutrition and health effect. Blueberry have a variety kinds of flavonoids which are presented in high levels such as anthocyanidins, flavanols, proanthocyanin and quercetin, which are as the main active ingredients of the present genus of plants. The earliest studied flavonoid is anthocyanidins. Now we have found about 30 kinds of anthocyanins wherein 15 species are common 15. Their pigment substances include five glycosides: anthocyanins, delphinidin, mallow pigment (malvidin), peony flower hormone (peonidin), and petunia aglycone (also known as 3-methyl delphinidin, petunidin). There are three sugars: glucose, galactose and arabinose. These five glycosides and these three glycosyl group formed the main component of anthocyanins (anthocyanins).
[Indications] It can be used to soften blood vessels, eliminate eye fatigue, improve vision; retard brain aging; enhance heart function; anticancer; take therapeutic effects on capillaries immune diseases caused by diabetes. The anthocyanin of blueberry leaves anthocyanin has an important role in boosting the re-synthesis of pigment rhodopsin, thereby enhancing people's eyesight. In modern society, television, cars and computers are widely available. Work stress and life stress are also increasing so that there are more and more cases about eyestrain and eye disease. According to the recommendation of American nutritionists, taking blueberry leaf extract for 3 tablets per day can achieve the purpose of eye care. Anthocyanin is a natural anti-aging nutritional supplement. Studies have proved that it is the most effective anti-oxidant people have found ever. The antioxidant property of anthocyanin is fifty times higher than that of vitamin E, and a hundred times as strong as that of vitamin C. It has a one hundred percent of bioavailability to its body, and can get detected inside the blood twenty minutes after taking. It is effective in preventing many kinds of diseases which are related to free radicals including cancer, cardiovascular disease, atherosclerosis, aging, and diabete