Medical scientists found that eating vegetables before meals can effectively kill the stomach. According to reports, vegetables contain extremely rich nitrates. After entering the stomach, they can produce a compound called nitric oxide, and nitric oxide can kill. The harmful bacteria in the dead stomach, so eat vegetables before meals can play a role in preventing gastritis. In addition, eating all the vegetables together with the meal will affect digestion and nutrient absorption. Eat vegetables on an empty stomach, and the nutrients of vegetables will enter the blood in a short time, which will help to rejuvenate the body and nutrients. Therefore, you can choose from several refreshing and pleasing vegetables for a pre-meal appetizer. Recommended pre-dinner dishes: The use of vinegar in the cutting of carrots not only enhances the mouth but also increases the appetite and resistance to infection. Tomato contains a large amount of citric acid and malic acid, which is of great benefit to the metabolism of the whole body, which can promote the production of gastric juice and strengthen the digestion of greasy food. Eat 2-3 tomatoes a day to meet the needs of a day's vitamin C; The taste of celery is fragrant and can increase appetite. The root and leaves of celery are rich in vitamins A, B1, B2 and C, which are suitable for those who lack vitamins. Papaya vitamin C is much more than vitamin C content in oranges, and papaya can help digestion and prevent gastric ulcers; Pea has qi in the middle, thirst, dampness detoxification, treatment of bloating, hiccups and vomiting; Cabbage is capable of raising stomach and medium, eliminating water annoying; Shiitake has the effect of qi and spleen, stomach and Qi and appetizing and helping food; The pumpkin can make up the qi and replenish the air, detoxify the water, kill the insects, and has the auxiliary treatment effect to the weak of the spleen and stomach, little food and abdominal distention. The main use of LiPF6 is in commercial secondary batteries, an application that exploits its high solubility in non aqueous, polar solvents. Specifically, solutions of lithium hexafluorophosphate in carbonate blends of ethylene carbonate, dimethyl carbonate, diethyl carbonate and/or ethyl methyl carbonate, with a small amount of one or many additives such as fluoroethylene carbonate and vinylene carbonate, serve as state-of-the-art electrolytes in lithium-ion batteries.[6][7] This application also exploits the inertness of the hexafluorophosphate anion toward strong reducing agents, such as lithium metal. Lithium Hexafluorophosphate Chengdu Jingke Trading Co., Ltd. , https://www.jkherb.com