Why are some fruits getting sweeter and others getting less and less sweet?

Some fruits are sweeter and some fruits are less sweet, which involves the process of fruit ripening and post-ripening and the chemical changes in them. Here are some possible explanations:

1. Respiration: Some fruits, such as bananas and apples, are fruits with strong respiration. They will continue to breathe, consume oxygen and generate energy during maturity. With the progress of respiration, fructose gradually accumulates in the fruit, which increases the sweetness of the fruit.

2. Converting starch into sugar: Some fruits, such as bananas and pears, have high starch content. During the ripening process, starch will gradually turn into sugar, which will increase the sweetness of fruit. Therefore, these fruits will become sweeter after a period of time.

3. Acidity and maturity: Some fruits such as citrus and lemon are acidic fruits, and their sweetness is affected by acidity. When these fruits are ripe, the acidity will gradually decrease and the sweetness will increase. So these fruits will become sweeter after a period of time.

4. Pectin decomposition: Some fruits such as strawberries and cherries have high pectin content. Pectin will gradually decompose in the process of fruit ripening, making the taste of fruit richer and sweeter.

5. Rot and fermentation: Some fruits will rot and ferment if left for too long, resulting in less sweet or more sour taste. This may be due to the action of bacteria or yeast, which leads to the conversion of fructose into acids and other compounds.

6. Storage conditions: The storage conditions of fruits will also affect the changes of their taste and sweetness. Proper temperature and humidity can delay the ripening and post-ripening of fruits and keep their sweetness. However, if the storage conditions are improper, such as high temperature or humidity, the fruit may rot faster or lose its sweetness.

Generally speaking, the reason why the fruit becomes sweet or not depends on the variety, maturity, acidity, sugar content and storage conditions of the fruit. Knowing the characteristics and storage points of fruits can help us enjoy them better.

Sweet and delicious.