According to experts from the forestry department, irregular ripening of fruits has three major hazards. Some additives, especially chemical additives, have certain side effects on human health. First of all, fumigation or dyeing with sulfur can cover up the state of the fruit itself and accelerate the ripening of the fruit, which seems to be a kind of deception in fact; Secondly, sulfur fumigation will destroy vitamins and trace elements in fruits during fumigation and reduce the nutritional value of fruits; At the same time, eating fumigated fruits and non-edible pigments will do harm to human health. Sulfur dioxide can be used for food preservation, but when it is used in excess, it is easy to produce sulfite by chemical reaction, and when the fruit remains, it will induce asthma and other diseases.
Normal and mature fruits can be purchased with confidence.
It is understood that strawberries are the first batch of anti-season fruit "models" that have achieved great success by adopting new technologies. Strawberries grow out of season by using the new technology of "protected cultivation". In the cold season of winter and spring, strawberry was cultivated with wind-proof, sun-like, hotbed, plastic shed, greenhouse and other cold-proof and heat-preservation facilities to achieve the purpose of early maturity, high yield and prolonged supply period. In this way, the nutritional content of strawberries is not lower than that of open-air strawberries. At present, the standard ripening methods of bananas are smoking, ethylene and ethephon, and these ripening methods are also used for imported bananas. As long as ethephon is controlled within the national use standard, it will not harm consumers. A researcher said: "The ripening methods used by formal research institutions and fruit wholesale markets are usually harmless to the human body."
? For litchi, longan, navel orange and other fruits rich in the south, in order to extend the shelf life, soak or wax with fresh-keeping liquid to avoid loss or prolong its market sales time. If the fresh-keeping liquid or wax powder used is allowed by the national health, epidemic prevention and quarantine department, you can buy it with confidence.