Plum is not the fruit of plum tree, but the fruit of plum tree. Generally speaking, ornamental plums are the flowers of plum trees. Mume is sweet in taste, large in fruit, thin in skin, shiny, thick in meat, small in stone, crisp and fine in quality, juicy and high in acidity. It is rich in various amino acids needed by human body, with sweetness in acid, and is known as "the king of preserved fruits" and "natural green health food".

Plums are rich in citric acid and malic acid. Citric acid can promote gastrointestinal peristalsis, stimulate appetite and digest protein. When citric acid is combined with calcium, it can strengthen bones, promote iron absorption and blood circulation, and has the effects of eliminating fatigue and delaying aging. At the same time, citric acid is accumulated in the blood, so it can also prevent diseases such as shoulder pain. In addition, plums are rich in vitamins, which can prevent colds and improve the discomfort caused by hangovers.

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Fresh fruit is rarely eaten and is mainly used for food processing. Its processed products include plum essence, salted dried plum, preserved plum, preserved plum, clear mouth plum, plum juice, plum sauce, dried plum, shredded plum, plum vinegar, plum wine and so on. Mei has many uses in medicine. For example, salted plum has antipyretic and anti-cold effects. Dried mume has the efficacy of treating chronic cough due to lung heat, thirst due to deficiency heat, chronic diarrhea, dysentery, biliary ascaris and cholecystitis.

Plum is rich in calcium, magnesium, potassium, sodium, phosphorus, iron, manganese, copper, zinc and other minerals. Among them, the unit content of calcium, phosphorus and money is much higher than other kinds of fruits.

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