To explore whether traditional natto contains harmful bacteria.

Friends who have traveled to Japan or like Japanese food must know that Japan likes natto very much. Although the predecessor of natto is China's salted douchi, Japanese natto and China's salted douchi have embarked on two insurmountable roads due to the differences in food culture between the two countries. It is said that in the Edo era, natto has entered the commercial field and become the staple food of Japanese breakfast.

At this time, some people may ask, what is the relationship between natto and soybean? In fact, natto is fermented by soybean and Bacillus natto. Natto not only retains the nutritional value of soybean and rich vitamin K2, but also improves the digestion and absorption rate of protein. More importantly, the fermentation process produces a variety of physiologically active substances, which have the functions of dissolving fibrin and regulating physiological functions. For example, osteoporosis, cardiovascular diseases, hyperlipidemia and other diseases or sub-health problems can be prevented by eating natto.

Bacillus natto plays an important role in soybean fermentation. Bacillus natto is not an artificial additive, but a pure natural product. The traditional preparation method is to wrap the cooked soybean with straw, then soak the straw in boiling water at 100℃ for sterilization and keep it at 40℃. Bacillus natto will be produced on the surface of natto to help soybean ferment into natto. It can be said that Bacillus natto is an adaptor which comes from soybean and produces natto.

Since Bacillus natto comes from food, does it mean that Bacillus natto is beneficial? The answer is yes, Bacillus natto can be eaten as a fungus. But its function is not only to eat, but also to be used in many fields.

1. Medical antibacterial agent

In history, Bacillus natto has twice saved mankind. According to Japanese reports, people used natto to prevent cholera, typhoid fever and dysentery during World War II. During the period of 1996, Bacillus natto controlled the poisoning incident of Japanese O- 157 Escherichia coli, because some capitalized products secreted by Bacillus natto could kill and inhibit some important intestines.

2. Strong deodorization

In recent two years, it has been found that Bacillus natto has a strong deodorizing effect, which can deal with all kinds of complex odors, such as garbage, toilets, pollutants, pets and so on. According to the researchers, the main compounds of these odors are ammonia, trimethylamine, acetaldehyde and hydrogen sulfide. Bacillus natto can swallow these organic substances into the water and carbon dioxide they need. Different from masking deodorization, Bacillus natto deodorization has the characteristics of essential eradication and continuous effectiveness.

Although Bacillus natto has deodorizing and antibacterial effects, Japanese people also have panic and worry: will the reproduction of this bacteria cause harm to human body? Will it mutate into harmful bacteria?

? A Japanese company is interested in the deodorization and antibacterial ability of Bacillus natto. They are also manufacturers of furniture and daily necessities. They have been troubled by the peculiar smell in their lives, and have been looking for opportunities to develop an antibacterial, deodorizing and safe product. So they carefully studied the application of Bacillus natto, and found that mixing Bacillus natto with water in a specific ratio was enough to achieve the daily deodorization and antibacterial effect. Therefore, they successfully developed SOYAHQ-22 Bacillus natto deodorant. The safety experiment was carried out, and the oral toxicity test and skin irritation test were passed. To the Japanese people's relief, they made public an experiment: SOYAHQ-22 was poured into the bathtub, and it was found that the fish still survived normally and exercised more actively. It can be said that SOYAHQ-22 is the safest deodorant ever.

Soon after SOYAHQ-22 became famous in Japan, the doctoral team of Tokyo University also looked for opportunities to cooperate with the inventor of SOYAHQ-22 and developed its derivative product-Rhysuair? Antibacterial and deodorizing air sponge. RhysuAir？ It makes up for the time-consuming and laborious shortcomings of SOYAHQ-22 as a spray, and can be placed in every corner to achieve the effect of spontaneous deodorization and odor purification.

Perhaps SOYAHQ-22 Bacillus natto not only has this way, but will be applied to more products in the future. After all, they are the safest antibacterial and deodorizing ingredients at present, and RhysuAir? Antibacterial and deodorizing air purification sponge will not be their first cooperative product.