Germination? A new way to enjoy peanut nutrition.

Original title: Sprouting? A new way to enjoy peanut nutrition
recently there are netizens are troubled by peanuts at home - my family peanuts sprouted, can still eat? Will it produce aflatoxin? I've never seen peanuts sprout, but you must have eaten soybean sprouts and green bean sprouts, haven't you? In fact, peanuts and soybeans, mung beans, are the seeds of legumes. "Good" legumes do not produce toxins when they germinate, so peanut sprouts can be safely eaten. Moreover, from a nutritional point of view, peanuts also produce a series of beneficial changes in the germination process. Don't believe it, I'll tell you slowly.
peanut sprouts are nutrient-rich sprouts
protein content increases and fat decreases: peanuts have a protein content of between 24% and 36%, which dominates the tree nuts. It has a fat content of between 44% and 58%. Assays showed that after germination, the total amount of protein not only did not decrease, but also increased when the bean sprouts were combined. At the same time, the content of free amino acids increases, resulting in a better taste. It was determined that the crude protein content of peanut buds increased by 8.4% after 5 days of growth, while the crude fat decreased by 28.68 percent, which is a happy change.
vitamin C content increased significantly: like grains and beans, dried peanuts hardly contain vitamin C, but the content increases significantly after germination, which is similar to when soybeans and green beans sprout. The study found that vitamin C levels in peanut buds increased during the first few days of germination, peaking on the 5th day and then decreasing gradually. As for the specific content of vitamin C, it is related to varieties and germination conditions, between 5 to 22 mg/100g, more than soybean sprouts and green bean sprouts.
of anti-nutrients decreased: like soybeans, raw peanuts before germination are not easily digested and absorbed, which contains anti-nutrients that hinder protein digestion. After germination, phytic acid content decreased, protease, amylase inhibitors decreased activity, in which minerals are more easily digested and absorbed by the human body.
Is rich in the active ingredient "resveratrol": It is well known that resveratrol is one of the key components of health in wine, this polyphenol has a strong antioxidant, anti-cancer, anti-cardiovascular disease, anti-radiation, anti-inflammatory, antibacterial and other effects. Peanut buds were also found to be rich in this active ingredient, which was higher than in wine.
data suggest that peanuts germinate and then eat, probably a new way to enjoy peanut nutrition. In fact, peanut buds have long belonged to a kind of bud vegetables.
The so-called sprout vegetables, commonly known as sprouts, is to use the seeds of various plants as raw materials, the seeds in the appropriate temperature, humidity conditions, let it germinate naturally grow, and then eat its buds, buds, buds, young stems or young parts. This method is clean and simple, does not need fertilization, covers less land. In the germination process, when the nutrient content is highest, the nutritional health effect of the seedlings is even better than that of the unprouted seeds themselves. Of course, sprouts are made from safe, non-toxic seed ingredients, and the germination process is not toxin-free.
from the taste, sprouted peanuts sweet and delicious, fresh and crisp. Its way of eating is similar to soybean sprouts, whether cooking, making soup, or after the water cold mix, are full of fresh taste.
simple four-step learning to germinate by hand
in addition to buying ready-made peanut buds directly from the market, you can also do it yourself. If there is an automatic sprouting machine at home, it is very simple. However, if you are interested and have time, hand-sprouting is not too much trouble:
1. Pick full, non-destructive peanuts, clean and soak in 80 degrees C of hot water for 5 minutes. This step is to give the seeds a short period of heat stimulation, which has the effect of promoting germination.
2. After water filtration, add 4 times tap water, soak at room temperature for 6 to 8 hours, so that peanuts absorb water to the extreme. In the process, some factors that hinder digestion and absorption, such as protease inhibitors, phytic acid, etc., have begun to decline.
3. Remove the soaked peanuts, control the excess moisture, spread evenly on a large flat plate with clean gauze. You mustn't let the water drown the peanuts, let it be fully exposed to the air. This is because seed germination is a process that requires a lot of oxygen and cannot germinate without air.
4. Gauze to keep moist, it is best to spray the pot evenly spray water, so that peanuts are always in a water-absorbing saturation state. Moisture is important for the activity of enzymes during germination and cannot dry out the surface of peanuts.
, three days later, you will see peanuts give birth to small buds, this time you can eat, nutritional value than no sprouted peanuts have been more than. However, to supplement vitamin C, it is best to eat on the 5th day, when vitamin C content is at its peak, and the total protein content of buds is also higher than a few days ago. It was not until the 8th day of germination that the total amount of protein began to decline.
peanuts are suitable for sprouting? In the selection of peanut varieties, it is recommended that we choose peanuts with uniform granularity, high protein content and low fat content. The buds of these peanuts are thick and strong, and the nutritional value is the highest. How do you know the protein content is high? Particles than large, taste delicious, not greasy, chewed up more resilient, relatively high protein. See the light growth of peanut buds color turquoise, sprouts thick and strong, belong to the green leafy vegetables. It is rich in vitamin K and folic acid and has a higher nutritional value than light buds that grow in light.
peanut soaking does not produce aflatoxin
finally said that everyone is most worried about aflatoxin. Peanuts are indeed easily contaminated with aflatoxin, one of the strongest chemical carcinogens ever found. What's even more frustrating is that the toxin is very heat-resistant and rarely destroyed at normal cooking and processing temperatures. The study found that the most suitable growth temperature of aflatoxin is 33 degrees C, and the most suitable temperature of toxic production is between 24 degrees C and 28 degrees C.
fortunately, peanut immersion does not produce aflatoxin, because mold does not like flooded environmental conditions, it likes a humid environment, but needs enough oxygen to thrive. If you choose healthy peanuts as the raw material for germination, the whole germination process is smooth, then do not worry about the production of aflatoxin.
By the way warm advice, in order to stay away from harmful substances, first of all to confirm that peanuts do not have mold, acid defeat phenomenon, when shopping as far as possible to choose vacuum small packaging products or fresher products. Secondly, after the opening of peanuts should be eaten as soon as possible, can not finish eating should be placed in a dry, cool place to save, to avoid moisture. If you are not in the heat, you can put in the pot, oven roast dry, and then take advantage of dry bags sealed storage. If you notice a slight musty or unpleasant smell, throw it away!
/Fan Zhihong (Associate Professor, Department of Nutrition and Food Safety, School of Food, Agricultural University of China)