Walnuts are widely used. Walnut trees are tall and beautiful, with lush foliage and a life span of several decades to hundreds of years. Walnut leaves can emit fragrance, which has strong ability to intercept smoke and dust, absorb sulfur dioxide and purify the air. Walnut is elegant in color, beautiful in pattern and delicate and tough in texture, which is an excellent material for manufacturing high-grade furniture and military materials. Walnut root system is developed, deep and wide, which can consolidate soil and reduce surface runoff. It is a good tree species for greening, beautification and soil and water conservation. There are a lot of tannins in the green peel, branches and leaves of walnut fruit, which can be extracted for dyeing, tanning and textile industry. Walnut shell can be used to make advanced activated carbon, which is an important chemical raw material. Thus, walnut trees are treasures.
Walnut is the first of the four dried fruits (walnut, cashew nut, hazelnut and almond) in the world. Walnut kernel is nutritious and delicious. According to the determination, the oil content of walnut kernel is 65. 1 ~ 69.9%, which is higher than that of soybean, peanut and rapeseed. Generally, the crude protein content is about 15%, and the highest is 29.7%, which is higher than that of eggs and ducks, 2. 1 times that of tofu and 5 times that of fresh milk. Walnut kernel is also rich in vitamins and inorganic salts beneficial to human body, such as calcium, magnesium, iron, phosphorus and zinc, and also contains 18 amino acids, 8 of which are essential for human body.
The above content is provided by natural grain food-Tanida Dream, hoping to help everyone.