1. The history of lemons
Lemons are produced south of the Yangtze River in China and are native to Southeast Asia. The main producing areas are the United States, Italy, Spain and Greece.
After conducting genomic and biogeographic analysis of more than 60 kinds of citrus, people found that the citrus family (including orange, tangerine, mandarin, lemon, pomelo, tangerine, etc.) originated in the southeastern foothills of the Himalayas. , including northern Myanmar and western Yunnan. Their ancestors migrated inland with the wet monsoon about 8 million years ago, and then spread to Australia and Japan about 4 million years ago. By distinguishing between pure and hybrid citrus, one can trace the lineage and genetic origins of commercial cultivars, helping breeders develop new citrus fruits.
2. Uses of lemon:
1. Prevent food from discoloring. Lemon juice is acidic and prevents food from browning due to oxidation. Squeeze some lemon juice when making a fruit platter to prevent avocados, apples, bananas and other fruits from turning black. Adding a slice of lemon when squeezing juice can not only protect vitamin C from loss, but also keep the juice beautiful in color.
2. Prevent the rice from being too sticky. When steaming rice, you can add a few drops of lemon juice to the rice cooker to make the steamed rice soft and not sticky. In addition, lemon juice will also make the rice look better.
3. Prevent brown sugar from clumping and hardening. Put a small piece of lemon peel with the pulp removed from the brown sugar to prevent the brown sugar from clumping and hardening and keep it soft.
Extended information:
Lemons are rich in vitamin C, sugar, calcium, phosphorus, iron, vitamin B1, vitamin B2, niacin, quinic acid, citric acid, malic acid , hesperidin, naringin, coumarin, high amounts of potassium and low amounts of sodium, etc., which are very beneficial to the human body. Vitamin C can maintain the production of various tissues and intercellular substances in the human body and maintain their normal physiological functions.
The matrix, adhesion and colloid formation in the human body all need vitamin C to protect it. When vitamin C is lacking, the interstitial substance between cells, that is, the gelatin, also decreases. In this way, the cell tissue will become brittle and lose the ability to resist external forces, and the human body will be prone to scurvy. It also has more uses, such as preventing colds, stimulating hematopoiesis, and anti-cancer.
Baidu Encyclopedia-Lemon