Black peanut effect and function
1, black peanut is rich in selenium and anthocyanins, has a powerful inhibition of free radicals, antioxidant, anti-radiation, anti-tumor, maintain cardiovascular activity and other effects, can slow down the aging of the skin and the body.
2, black peanuts can promote the development of brain cells, enhance the agility of thinking, improve and enhance memory has a good effect, but also can stimulate and change brain activity.
3, black peanuts can make the spirit of exuberance, help to control and alleviate mental depression, prevention and treatment of agitation.
4, black peanuts can improve the function of the immune system, prevent the generation of kidney stones, but also help to alleviate the lowering of blood sugar.
5, black peanuts have obvious antioxidant function, can reduce the aggregation of platelets, to prevent atherosclerosis, but also can reduce the total blood cholesterol and harmful cholesterol content, play an effective role in the prevention of cardiovascular disease.
6, black peanuts on the human body has a very good regulation of physiological effects, melanin can effectively promote the body's blood circulation, to prevent visible light and ultraviolet radiation damage to the human body.
Black peanuts have a broad prospect in health food and medical food, etc., is a very promising black food.
People who have eaten black peanuts are still on their? Black? There are doubts, why the black peanuts soak in water will fade? Is not stained? I tell you why and the way to identify black peanuts.
How to identify black peanuts
As black peanuts are a new species, and the price is higher than ordinary peanuts, so some unscrupulous merchants will give ordinary peanuts make-up, profiteering. As consumers, we should know how to recognize the real black peanuts, so as not to be deceived, eaten by mistake will also affect the health.
1, observe the color of the peanut coating. Generally speaking by artificial dyeing of black peanuts, the whole peanut black is very uniform, the same peanut or different peanuts, the color is basically no difference. Natural growth of black peanuts, different peanut kernels between the color differences, some peanut seed skin deep pitch-black pitch-black, some show dark purple. Even if the same black peanut kernel different parts of the color shades should be different.
2, from the peanut heart (peanut embryo) judgment. If you use dyed black peanuts, only the peanut coat is black, the peanut kernel is still milky white. Because under the current conditions, whether water-soluble fuel or fat-soluble fuel is impossible to dye peanut kernels black, which stems from the peanut kernel has a highly dense tissue, the dye is difficult to penetrate the properties. However, the dye that dyes black peanuts can penetrate through the peanut coating and remain in the crevices of the peanut kernel, such as peanut kernels with cracks, the dye residue can also be seen in the cracks.
3, buy in-shell. In view of the black peanuts and ordinary peanut shells of the same color, it is recommended that usually in the purchase of black peanuts, try to buy black peanuts with shells, the security will be a little higher.
4, cut to see. Is to use a knife to cut the black peanut rice, although the outer skin of the peanut is black, but the kernel is white and clean, which means that it is pure black peanut rice, on the contrary, if it is dyed, not only the peanut skin color is deep, the color of the peanut kernel is also turbid and not clean.
Black peanuts will fade
Natural black peanuts fade is very common, because the skin of the black peanuts contain anthocyanins, and anthocyanins are soluble in water, the fall color is very normal. If damp or soaked in water, it will precipitate biological pigments. The water will be dyed purple red, that is, we said the water in a bubble on the color, and make the black peanut itself lighter in color, which is a normal phenomenon, do not have to worry about, you can rest assured that the food.
Many black crops, such as black beans. Black rice. Black wheat and other fading phenomenon, crop fading is a normal phenomenon, the phenomenon of falling color not only exists in the black agricultural products, like a lot of red beans ah, purple rice, yellow millet and so on will varying degrees of this phenomenon. Just because the black looks more obvious.
Anthocyanin is a water-soluble natural pigment, red in acid, blue in alkali, no harm to the human body.
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