2024 Graduate School Entrance Examination Nuts are a widely popular food that is not only rich in nutritional value, but also known as "brain food".
However, some nuts become black and bitter during storage or processing, making them inedible. So, why can't these blackened, bitter nuts be eaten? This article will focus on the consumption and nutritional value, black substances and bitter components, the causes of formation, harm and impact, treatment methods, and suitable consumption methods and precautions.
Nuts are favored for their rich fats, proteins, vitamins, and minerals. They are widely used in various fields such as baking, stir-frying, Western seasonings, snacks, etc., providing people with a unique taste and nutrition.
The high fat content of nuts allows them to produce a feeling of fullness in the stomach for a longer time, helps to control appetite, and has a positive effect on ** and blood sugar control.
However, some nuts produce black substances and bitter components during storage or processing, which makes them inedible. The black substance is often due to the action of enzymes inside the nut, coupled with the oxidation in the air, which leads to the oxidation and deterioration of the nut. The bitter component is caused by the nut's own bioactive substances.
These black substances and bitter components will not only affect the taste and flavor of nuts, but also cause certain harm to human health. First of all, black substances and bitter components can reduce the taste and quality of nuts.
They can make nuts bitter and astringent, making it difficult for people to accept. Secondly, black substances and bitter ingredients may irritate and burden the digestive system, causing discomfort.
Long-term consumption of black and bitter nuts may affect gastrointestinal function, increase the load on the digestive system, and even cause diseases such as indigestion. To solve this problem, there are some treatments that one can take to remove the black substance and bitter components from the nuts.
A common method is roasting or sautéing, which can be heated to promote the decomposition and volatilization of black substances, thereby improving the taste and quality of nuts.
In addition, you can also use the method of soaking, soak the nuts in water for a period of time, and then rinse them with water to remove the black substance and bitter components on the surface. Processed nuts can be eaten in a variety of ways.
It can be eaten straight as a nutritious snack or added to baking to add texture and flavor to pastries. However, it should be noted that the treated nuts still need to be protected from exposure to air during the preservation process to avoid oxidation and deterioration again.
In addition, for people who are prone to allergies, it is necessary to be cautious when eating nuts to avoid allergic reactions. In summary, the reason why blackened and bitter nuts cannot be eaten is that the black substance and bitter components they contain have adverse effects on taste and health.
However, with proper processing, we can remove these components and restore the original flavor and nutritional value of the nuts. Therefore, when purchasing and eating nuts, we should pay attention to their quality and freshness, and properly handle and store them according to the actual situation to ensure the quality and safety of nuts.