First, warm water off the astringent method: the persimmon into a large tank, then pour 45 degrees Celsius warm water, all submerged persimmon, and then use cotton and other objects to tightly cover the cylinder cover, after 20 to 36 hours can be astringent . Second, the alcohol off astringent method: spray persimmon with 75% alcohol or sorghum liquor, and then seal the persimmon in the container for 3 to 4 days, you can get rid of astringent. Third, the fruit off the astringent method: In the persimmon mixed with 10% of the pear, apple, kiwi and other mature and intact fruit, placed in a container sealed, 3 to 4 days will be able to get rid of astringent soft. Fourth, the lime off the astringent method: Lime water will be formulated into 5% of the lime water, when the hot water is still hot, the persimmon is immersed in it, lime water to be able to submerge the persimmon, and then sealed, so after 3 to 4 days persimmon can take off astringent. V. Ethylene Liquor Astringent Method: soak the persimmon in O.05% to 0.1% ethephon solution, and then remove and store it in the room. After 3 to 4 days, the persimmon can be peeled off and become soft.
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Types of antibiotics
Thousands of antibiotics have been reported, which can be divided into six types according to their structure:
(1) sugar derivatives, mainly composed of hexosamine derivatives, such as streptomycin;
(2) polypeptide antibiotics, mainly or entirely composed of amino acids, have some characteristics of polypeptides or proteins, such as polymyxin, penicillin;
(3) polyene antibiotics, with multiple double bonds in molecular structure, such as nystatin and amphotericin;
(4) macrolide antibiotics, which are composed of one or more monosaccharides and together with carbon chains form a large aromatic lactone compound, such as erythromycin;
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How does the green persimmon ripen
At present, it is the harvest season of persimmons. Persimmons are fruits that people like to eat. They are sweet and delicious, nutritious, and many people also like to eat frozen persimmons in winter. Persimmons have high nutritional value, containing about 1 to 2 times more vitamins and sugars than ordinary fruits. If a person eats a persimmon one day, the amount of vitamin C they eat can basically meet half of the daily requirement. Therefore, eating persimmons is very beneficial to human health. So how did the green persimmon just picked?