Volvariella volvacea will oxidize and turn black if it is kept for a long time. If there is no odor and the tissue collapses, it can still be eaten. But there is no nutrition at this time, and it is easy to produce a lot of nitrite after long-term storage. These substances are very bad for people's health, so it is recommended not to eat them.

How long can straw mushroom last?

Volvariella volvacea is extremely difficult to store after harvest, and its optimum storage temperature is 12- 15℃, and it can only be stored for about 2-3 days. Therefore, straw mushrooms cannot be frozen, and it is best to buy as much as you eat. If you want to keep it for a longer time, you can use the preservation method of light salt water: clean the fresh straw mushroom after cutting its roots, then pour tap water into the pot to boil, add the prepared straw mushroom, add a little salt, wait for the water to boil for 2-3 minutes, cool it and store it in the refrigerator for about 5 days.

What is the efficacy and function of straw mushroom?

1, improve immunity

Volvariella volvacea has high vitamin C content, which can promote human metabolism, improve immunity and enhance disease resistance. At the same time, straw mushroom also has the function of detoxification. For example, lead, arsenic, benzene, etc. can combine with it to form anti-bad blood cells, which are excreted with urine.

2. Disease resistance and cancer prevention

Volvariella volvacea also contains a heterogeneous protein substance, which has the function of eliminating human cancer cells. The crude protein content is higher than that of Lentinus edodes, and other nutrients are similar to those of woody edible fungi. It also has the function of inhibiting the growth of cancer cells, especially for the adjuvant treatment of digestive tract tumors, and can enhance the vitality of liver and kidney.

Step 3 prevent constipation

The cellulose contained in Volvariella volvacea can promote intestinal peristalsis, relieve constipation and prevent intestinal cancer. At the same time, it can also reduce the absorption of carbohydrates and reduce blood sugar content, which is beneficial to diabetic patients.

What should I pay attention to when eating straw mushrooms?

1. The water content of fresh mushrooms can reach 90%, and the shelf life is not long. At room temperature, it can only be stored for about 1 week, and the time of Volvariella volvacea is only about 1 day. If you want to keep it at home for a long time, you must spread it on the newspaper after you buy it, and dry it in the shade. If there is less water, the possibility of microbial autogenesis will be reduced and the shelf life will be extended.

2. People with deficiency of spleen and stomach are not suitable for eating straw mushrooms. Whether eaten alone or with other ingredients, it is not suitable for them, otherwise the symptoms of spleen and stomach deficiency and cold will be aggravated and it is difficult to recover.

3, people with cold asthma are not suitable for eating straw mushrooms. After eating straw mushroom, asthma symptoms will get worse. Some components in Volvariella volvacea can make the cold inside the human body gather, which directly affects the human respiratory tract and is extremely unfavorable to the treatment of asthma.