Grapes are fruits in summer and autumn. Most of them will mature from the end of summer to the beginning of autumn. The specific maturity and listing time depends on the region and varieties.
It can be divided into three varieties: early maturing, middle late maturing and late maturing. Most grapes in the South will mature between June and July, while most grapes in the north and Xinjiang will mature between July and October. Most mature plants in other seasons are planted in greenhouses.
Grapes are not only delicious, but also of high nutritional value. The sugar content of grapes in mature berries is as high as 10% - 30%, mainly glucose.
Grapes contain minerals such as calcium, potassium, phosphorus, iron, a variety of vitamins B1, B2, B6, C and P, as well as a variety of amino acids needed by the human body. Regular consumption of grapes is of great benefit to neurasthenia and excessive fatigue.
Traditional Chinese medicine believes that grape has a flat nature and sweet and sour taste. It enters the lung, spleen and kidney meridians. It has the effects of Tonifying Qi and blood, benefiting the liver and kidney, generating fluid, strengthening muscles and bones, relieving cough and annoyance, tonifying qi and blood, and promoting urination.
The contents of resveratrol in grape skin and proanthocyanidins in grape seeds are higher than other parts of grapes and most other fruit trees, and have high medicinal value. They have become important nutritional and medicinal commodities in the world.