First, the preservation method.
1. The Gibberellin Preservation Method: About 20 to 30 days before banana harvest, apply a solution of 50 mg/liter of gibberellin to the fruit. After spraying, rinse the bananas with a 20% multi-filtrate solution. This method has been proven effective in extending shelf life and controlling banana anthracnose, ensuring better quality during storage and transport.
2. The Calcium Peroxide Preservation Method: Combine powdery or granular calcium peroxide with bananas in a sealed container. When exposed to moisture, the calcium peroxide slowly releases oxygen, which helps absorb ethylene gas emitted by the fruit. This process can keep bananas firm for up to 60 days. This technique is particularly useful for preserving fresh bananas during large events like the North Games, where long-term storage is essential.
Second, the ripening method.
1. Ethephon Ripening Method: After harvesting, immerse the bananas in an ethephon solution, then dry them and place them in a room to ripen. The concentration of the solution should be adjusted based on the ambient temperature. At 25–30°C, use 700–1000 mg/liter and allow 40 hours for ripening. At 30–40°C, increase the concentration to 1500–2000 mg/liter, with ripening taking about 60 hours. For lower temperatures (12–19°C), use 2000–3000 mg/liter, and ripening will take around 70 hours. This method allows for controlled and efficient ripening under different environmental conditions.
2. Cigarette Smoke Ripening Method: Place the bananas in a closed space and expose them to cigarette smoke. Then light some incense sticks in the same area to spread the smoke evenly. If only slight ripening is needed, place the bananas in a container, add some bitter oyster leaves, and light a few incense sticks inside. Repeat this process the next day. After about 10 days, the bananas will be fully ripe. This traditional method not only ripens the fruit effectively but also enhances its color and flavor, resulting in golden, fragrant bananas that are highly desirable.
By using these methods, farmers and traders can better manage the freshness and ripening of bananas, ensuring high-quality produce reaches consumers in optimal condition.
During the weight loss period, you can drink black coffee, latte, low-fat milk coffee, oatmeal latte, green tea latte and other drinks in moderation.
1. Black coffee
Black coffee does not contain sugar and fat, and will not cause excess calories. Drinking in moderation can refresh the mind and help improve work efficiency. It can also promote gastrointestinal motility, thereby achieving the purpose of assisting weight loss.
2. Latte
Latte is an Italian coffee drink composed of espresso, hot milk and milk foam, usually with a small amount of syrup for flavoring. The caffeine in this drink can increase the metabolic rate, while milk provides certain protein and calcium. Proper intake can help burn fat reserves in the body while maintaining bone health. It is suitable for enjoying before and after exercise or when you need to concentrate.
3. Low-fat milk coffee
Low-fat milk coffee is a drink made by mixing low-fat milk and coffee, in which the saturated fat content in regular whole milk is reduced. This drink retains the slight stimulating effect provided by coffee and reduces the fat content that may cause weight gain. It is suitable as a refreshing drink in the morning or afternoon.
4. Oatmeal Latte
Oatmeal latte is made from oats as the main raw material, rich in dietary fiber, and has a high sense of fullness; coffee contains a certain amount of caffeine, which can stimulate the central nervous system and make people feel excited. Long-term moderate drinking is conducive to promoting gastrointestinal motility, improving the problem of difficult defecation, and thus achieving the effect of weight loss. But be careful not to drink too much, so as not to cause insomnia and other discomfort symptoms.
5. Green tea latte
Green tea latte is a drink made from green tea as raw material. The tea polyphenols contained in it have a certain antioxidant effect; coffee contains a certain amount of caffeine, which can play a diuretic and detumescent effect. Drinking some green tea latte appropriately is good for the body and generally does not affect the weight loss effect. But avoid drinking too much, otherwise you may experience insomnia, palpitations and other symptoms.
It is recommended that when choosing the above foods, pay attention to personal physical differences and possible adverse reactions. For people with high blood pressure, high blood sugar and other diseases, caffeine intake should be reduced to avoid high blood pressure or blood sugar fluctuations.
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