I. Introduction to Pear:
1, pear, Rosaceae, pear. Pear trees, deciduous trees, leaves as round as big leaves, trunk covered with rough skin, branches like umbrellas. Spring flowers, the color is white, like snowflakes, with a faint fragrance. Pears can be eaten raw, and can also be used for making wine, pear sauce, preserved pears and medicine.
2. Pear has been cultivated in China for more than 2000 years. There are many kinds, many varieties and a long history. Since ancient times, it has been deeply loved by people, and its simple appearance has won the admiration of poets. Originally from China, it is cultivated all over the country. The output of pears in China is second only to that of apples.
Second, the effect:
1. According to "Materia Medica Xuan Tong" in Ming Dynasty, pear flower has the functions of moistening lung, resolving phlegm, relieving cough and relieving hangover, and people also find that pear flower has the effect of whitening skin. According to Li Shizhen's Compendium of Materia Medica, pear can be peeled off, and it is found that black powder contains high concentration of arbutin, which is a representative active factor of pear whitening effect.
2. Arbutin, whose chemical name is p-hydroxyphenylglucoside, can release a powerful tyrosine oxidase inhibitor hydroquinone in the body, inhibit the synthesis of skin melanin, and also have a cough relieving effect. Compared with other plant resources, pear has shorter growth period, less chance of environmental pollution and better safety.