What are the negative effects of ripening agent on human body?
There are three "poison recipes" for fruit ripening: 1, and the first of the three secret recipes is "hormone ripening strawberry". Those hollow, large and irregular strawberries are generally caused by too many hormones. It is understood that after using ripening agents or other hormone drugs, the long-term growth of strawberries is shortened, the color is bright, but the fruit taste is faded. 2. The second of the three secret recipes is sulfur smoked banana. Whether it is ripened with ammonia water or sulfur dioxide, the banana peel can only turn pale yellow, but the pulp taste is still hard and not sweet at all. 3, the swelling agent urges the big watermelon. Excessive use of ripening agents, swelling agents and highly toxic pesticides makes watermelons toxic. The stripes on this watermelon skin are uneven, and the flesh is particularly bright after cutting, but the melon seeds are white. After they are tasted, they will leave a special taste in their mouths. Three Harms of Irregular Ripening of Fruits
According to experts from the forestry department, there are three main hazards of irregular ripe fruits: some additives, especially chemical additives, have certain side effects on human health. First of all, it is a fraud to fumigate or dye the fruit with sulfur to cover up the state of the fruit itself and make the fruit mature and look shiny. Secondly, fumigation of fruits with sulfur will destroy vitamins and trace elements in fruits and reduce the nutritional value of fruits. At the same time, eating smoked fruits and non-edible pigments will do harm to human health. Generally, sulfur dioxide can be used to keep food fresh, but when it is used in excess, it is easy to generate sulfite through chemical reaction, and the residue in fruits will induce diseases such as asthma. Normal and mature fruits can be purchased with confidence.
It is understood that strawberry is the first "model" of anti-season fruit that has adopted new technology and achieved great success. The new technology of "protected cultivation" is adopted for the off-season growth of strawberries. In the cold winter and spring season, it is cultivated with wind barriers, sunny beds, hotbeds, plastic greenhouses, greenhouses and other cold-proof insulation facilities to achieve the purpose of early maturity, high yield and extended supply period. The nutrients of strawberries produced in this way are not lower than those cultivated in the open air. At present, the commonly used standardized methods for ripening bananas include smoking, ethylene, ethephon, etc., and imported bananas also adopt this method. Ethephon is harmless to consumers as long as it is controlled within the national use standards. "The ripening methods adopted by regular scientific research units and fruit wholesale markets are generally harmless to the human body." A researcher said.
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.
Common sense of life: common fruits are ripe
The ripening period of cherries is from mid-May to mid-June. Strawberries in the open field began to be picked in the middle and late May, and the strawberries were rich in sweet and sour taste. The ripening period of apricot is from late May to mid-July. Peach ripens from mid-June to 10; Early-maturing plum varieties began to be listed in early June, and the best varieties should mature in August and September. 10 The maturity of most jujube varieties is from mid-late September to early June, and jujube has jujube flavor. Before that, the dates on the market were all firewood and could not be eaten. Some apple varieties mature after lodging, that is, "lodging apples". Mid-late ripening apples such as "Red Star" will not mature until the end of September, and "Fuji" series will not be available until June 65438+ 10. Early-maturing varieties of pears mature in early August, such as "Emerald", but the price is more expensive. Most pears are listed at the end of September or at the beginning of 10. Persimmons are generally listed in the late June of the first frost solar term, that is, 10.