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Details of hawthorn tree
Hawthorn, also known as quince (pictured), is a small deciduous tree? . Young branches have fluff. Leaves ovate or oblong, dark green on the surface, densely villous on the back. Flowers solitary, white or pink. Pear-shaped, yellow fragrance. The flowering period is April-May. ? I like light, but I can resist semi-yin. Strong adaptability and cold tolerance. The requirements for soil are not strict, and it can be cultivated in places with good drainage. ? It can be propagated by sowing, cutting or layering. Transplanting should be done after defoliation or before germination. Generally, small seedlings need to stay in the soil, and big seedlings need to bring soil balls. The budding power is still very strong and can be pruned. The requirements for environmental mixing are not strict, and it is adaptable to local conditions, and both clay and sand can grow. Distributed in Xinjiang, Jiangsu, Shandong, Hubei, Hebei, Shaanxi, Northeast China and other places.

Medicinal value: dried fruit is pear-shaped, hard and often vertically split in half. The skin is smooth and wrinkle-free, dark red or yellowish brown; The meat is thick, the cross section is granular, and there is no curling. The loose body is light, the diaphragm is yellow-brown, and there are dents on it where seeds fall off. The taste is slightly sour. A few areas are also used as papaya. Seeds contain a lot of mucus, which can be used with other drugs for external use to reduce irritation and delay absorption. The toxic dose of pectin (4%, dissolved in normal saline) to mice was 65438±0.8g/kg, and they died of visceral circulatory disturbance. When the dosage is 0.03 ~ 0.046 g/kg, the coagulation time of rabbits can be shortened by 50 ~ 80%. The water or alcohol extract of leaves can enhance the heart and respiration of mice without any toxicity. Intravenous injection in cats and rabbits can increase heart rate; It has no obvious effect on autonomic nervous system. Alcohol infusion can lower blood pressure. The contraction of isolated rabbit ear blood vessels inhibits the peristalsis and tension of isolated small intestine.

Practical value: quince is one of the ancient fruit trees in Europe, Central Asia and Xinjiang, China. The fruit is fragrant and contains many nutrients, including dry matter 15.5-23.9%, sugar 8-9.6% and some varieties as high as 10.7%. Among them, glucose 1.96-2.37%, fructose 6.05-6.49%, sucrose 0.38- 1.58%, malic acid 0.93%, vitamin 1.86% and minerals 0.47-5.5%. Fresh food has a special smell. Xinjiang people use it as a seasoning for "pilaf", which tastes delicious and is regarded as superior food.

Fruit contains more tannins (about 0.32%), cellulose and pectin (1. 1-2.3%) and so on. Although raw food has a hard feeling, fruit is a good raw material in food industry, which is often used to make jelly, jam, preserved fruit, juice, canned food, candy, snacks, green shredded pork and other foods. Because the surface of the fruit is uneven, the stone core is large, and there are many stone cells in the pulp, the utilized part accounts for about 50-60% of the fresh weight of the fruit during processing.

The quince fruit contains active substances such as catechin and yellow phosphorus, which is more than other kernel fruits, and can enhance the strength of blood vessels and ensure their safety. Human health. Traditional Chinese medicine believes that it is warm and non-toxic, and has the functions of eliminating dampness, relieving summer heat, relaxing muscles and tendons, activating collaterals, resolving food stagnation, and treating heatstroke, vomiting and diarrhea, abdominal distension, joint pain, spasm and dyspepsia. Crushing the fruit and taking the juice for external application can cure nameless swelling and pain. Xinjiang Chinese medicine believes that the fruits, leaves, roots, branches and other parts of quince can be used as medicine, which has a certain curative effect on bronchitis and other 14 diseases.