Watermelon can be called "king of midsummer", relaxed quench thirst, taste sweet and juicy, it is midsummer good fruit, watermelon does not contain fat and cholesterol outside, contain a lot of glucose, malic acid, fructose, protein amino acid, tomato and rich vitamin C etc. material, it is a kind of rich very high nutrition, pure, edible safety food. Meat is typically 5-12% sugar, including glucose, fructose and sucrose. The sweetness increased with the increase of sucrose in late ripening.
Watermelon flesh: protein, glucose, sucrose, fructose, malic acid, citrulline, glutamic acid, arginine, phosphoric acid, lactine, propionic acid, glycol, betaine, adenine, sucrose, radish, carotene, lycopene, hexahydrolycopene, vitamin A, B, C, volatile components contain A variety of aldehydes. Watermelon seed: contain adipose oil, protein, vitamin B2, starch, pentosan, propionic acid, urea, sucrose and so on. Watermelon skin: Watermelon skin is rich in vitamins C and E.