Blueberry, not known as blueberry, Benedictine, persimmon, beep, persimmon, meadow, and Benedictine, in narrow sense, a group of flowering plants of the blueberry group (named Cyanococcus) of blueberry subgenus. In the broad sense, it can include all species with blue berries in the genus blueberry. These species are native to North America and East Asia, as shrubs, with a height from 10 to 4 meters; dwarf species called "Lowbush blueberries", and the tall species called "highbush blueberries". Leaves can be deciduous or evergreen, ovate ovate to lanceolate, 1 to 8 cm long, 0.5 to 3.5 centimeters wide.
Flowers are bell shaped. They are white, peach to red, sometimes with light green tones. Fruit is a botanical false fruit with a diameter of 5 to 16 millimeters, with a trumpet shaped crown at the end; at first it is light green, then red purple, and finally blue or deep purple, when mature can be harvested. Ripe with sweet flavor and different acidity. Other subgenera of the genus Vaccinium, including other wild shrubs of edible berries, such as cranberries, Sonchus and blueberries. The production season of blueberries is from May to October each year, reaching its peak in July. Vaccinium uliginosum, also known as persimmon and Dushi, is often called blueberry in North China.
Blueberries used in jelly, jam and pie will also be baked in muffin. It is one of the ingredients of many desserts and delicacies. Many baked products will be seasoned with artificial blueberries, but in fact, they contain no real blueberry ingredients. Blueberry jam is made from blueberries, sugar, water and pectin. Commodity packaged jam usually contains chemical preservatives, such as citric acid. Top blueberry jam is produced in Canada and the United States, using wild blueberries; it is small and difficult to harvest, but it is stronger when cultivated with better taste. The main producing areas are in Maine, Ontario, northwestern Canada and Saint John, Quebec.
The nutritional value of Blueberry
In addition to conventional sugar, acid and vitamin C, blueberry fruits are rich in vitamin E, vitamin A, vitamin B, superoxide dismutase (SOD), Xiong Guogan, protein, anthocyanin, edible fiber, and rich potassium, iron, zinc, calcium and other mineral elements, and vitamins are higher than other fruits, and the trace elements are also high. High amino acids, high copper, high zinc and high iron fruit.
In addition, blueberries contain a lot of anthocyanins, and anthocyanins are very effective.
1. Prevention of disease
Anthocyanins can remove harmful free radicals in the body. Free radicals are one of the important causes of aging and many diseases. According to the estimated aging of about 80%-90%, degenerative diseases are related to free radicals, including cancer, Alzheimer's disease, Parkinson's disease, skin black spot deposition, cataract, heart disease and so on. So eliminating harmful free radicals is crucial to maintaining good health and youth.
2. Improve vision
Medical reports show that anthocyanins in blueberries can promote the regeneration of retina (Rhodopsin) in retinal cells, prevent severe myopia and retinal detachment, and improve vision.
Anthocyanins, known as "oral skin cosmetics" in Europe, prevent the early formation of skin wrinkles. In addition, anthocyanins are also natural sunlight covers that prevent ultraviolet rays from infringing the skin.
4. Improve sleep
Anthocyanin has the function of deep cell protection cell membrane not oxidized by free radical, powerful antioxidant and anti allergic function, can pass through blood brain barrier, protect brain nerve from oxidizing, stabilize brain tissue function, protect brain from harmful chemicals and toxins, and improve sleep quality completely.
5. Strengthening blood vessels and improving circulation
Anthocyanins can improve blood circulation, restore lost microvascular efficacy, strengthen the fragile blood vessels, so that the blood vessels are more flexible. Proanthocyanidins can effectively relieve pain, edema and night spasm in patients with venous insufficiency.
Blueberry fruit is berry type and has strong storage resistance. Under the room temperature of l8-26 C in room, the fresh fruit of small package (small food box) can be preserved for 2 weeks without changing its original flavor. If cryopreservation is preserved, the fresh keeping period will be longer, and the gas storage can reach about 3 months.
If you buy a large number of blueberries on a local farm, freeze them in a single layer of baking plates or pallets for a few hours, and make sure they are frozen into a sealed container.
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