Vinegar can be roughly divided into three types, namely brewing vinegar, synthetic vinegar and white vinegar. The largest number in China is fermented vinegar. Scientific analysis shows that fermented vinegar contains not only 5%-20% acetic acid, but also organic acids such as amino acids, lactic acid, succinic acid, oxalic acid and nicotinic acid, minerals such as protein, fat, calcium, phosphorus and iron, vitamin BI, vitamin B2, sugar and aromatic substance ethyl acetate. The content of organic acids and amino acids in rice vinegar made from rice is the highest.

Modern medicine believes that vinegar has the following functions in treating diseases and preserving health:

1, eliminating fatigue;

2. Adjust the acid-base balance of blood and maintain the relative stability of human internal environment;

3, help digestion, which is conducive to the absorption of nutrients in food;

4, anti-aging, inhibiting and reducing the formation of peroxide in the process of human aging;

5. Strong bactericidal ability, which can kill staphylococcus, Escherichia coli, dried bacteria, halophilic bacteria, etc. In the intestine;

6. Enhance liver function and promote metabolism;

7. Dilating blood vessels is beneficial to lowering blood pressure and preventing cardiovascular diseases;

8, enhance renal function, have diuretic effect, and can reduce urine sugar content;

9, can make the body's excess fat into physical exertion, and promote the metabolism of sugar and protein, which can prevent obesity;

10, vinegar also contains anticancer substances.

Vinegar is an essential condiment in people's lives. On September 20th, the first vinegar summit in China will be held in Langzhong, one of the four major vinegar producing areas in China. Experts from the national vinegar brewing industry and the four famous vinegars in China will sit together for the first time to discuss the development of vinegar brewing industry.

Among the four famous vinegars, Shanxi aged vinegar, Zhenjiang aromatic vinegar and Zhejiang rice vinegar, Baoning vinegar is the only medicinal vinegar, which is known as "Oriental God vinegar". 19 15 won the gold medal together with Maotai, the national wine of Panama Pacific World Expo, thus establishing its position among the four famous vinegars in China.

Zhenjiang aromatic vinegar ranks first among the four famous vinegars because of its characteristics of "sour but not astringent, fragrant but slightly sweet, strong color and fresh taste, and more mellow with age".

Shanxi Mature Vinegar: Mature Vinegar is produced in Qingxu County and is one of the four famous vinegars in China. The color of aged vinegar is black and purple.

Baoning vinegar has a history of nearly 400 years and is one of the four famous vinegars in China. But among the four famous vinegars in China, the production scale and economic benefits of Baoning vinegar are far behind.

Relying on Baoning vinegar, one of the four famous vinegars in China, Langzhong, an ancient city, actively organized the first China Famous Vinegar Festival. Domestic vinegar, represented by China's four famous vinegars, is famous far and wide ... in the late Qing Dynasty, it was listed as the "four famous vinegars" with Zhenjiang balsamic vinegar, Shanxi aged vinegar and Fujian red yeast rice vinegar.