Where is the origin of pine nuts? Management method of fruit tree planting

Pine nuts are the seeds of pine trees, called sea pine nuts.

Pine nuts contain fat, protein and carbohydrates.

Pine nuts are not only important traditional Chinese medicine, but also have high therapeutic value.

Pine nuts are so popular, but many people often don't know where the pine nuts are produced. If someone asks about the origin of pine nuts, they are always vague. Let's follow Bian Xiao to find the origin of pine nuts.

China pine nut producing area

Pine nuts in China are mainly distributed in Changbai Mountain and Xiaoxing 'anling forest areas in the northeast, belonging to national endangered species. Wild Korean pine needs to grow for 50 years before it begins to seed, and the maturity period is about two years.

Dietotherapy value of pine nuts

1. Pine nuts are rich in unsaturated fatty acids such as linoleic acid and linolenic acid. These lipids are the components of various tissues and cells in human body, and are also the main components of brain and nerve tissues.

Eating more pine nuts can promote children's growth and development and physical recovery after illness.

2. Soften blood vessels, prevent diseases and prolong life. The unsaturated fatty acids and a large number of minerals such as calcium, iron and phosphorus contained in pine nuts can enhance the elasticity of blood vessels, maintain the normal state of capillaries, reduce blood lipids and prevent cardiovascular diseases.

On the other hand, it can provide rich nutrition for body tissues, strengthen bones and muscles, and eliminate fatigue, which is of great benefit to the health care of the elderly.

3. Moisturize and brighten the face. Hair-blackening and beauty-caring pine nuts are rich in oil and various nutrients, and have obvious effects of removing grains to satisfy hunger, nourishing five internal organs, nourishing qi and blood, nourishing muscles, blackening hair, whitening skin, beauty beauty and keeping healthy figure. It is a good beauty food.

4. Loosening intestines and relaxing bowels Pine nuts are rich in fatty oil (about 74%), mainly oleic acid esters and linoleic acid esters, which can moisten intestines and relax bowels, stop diarrhea without hurting vital qi, and have a definite dietotherapy effect on constipation due to physical weakness and fluid deficiency in the elderly.

Pine nuts are rich in phosphorus and manganese, which is beneficial to the brain and nerves. It is a good brain tonic for students and brain workers, and also has a good preventive effect on Alzheimer's disease.