What are the ways to prepare 3,4-dihydroxybenzoic acid?

3,4-dihydroxybenzoic acid is naturally found in the leaves of Holly (family) and Aconitum (family). It appears as a white powder and changes its color when exposed to air. Aqueous solutions of 3,4-dihydroxybenzoic acid appear dark red when encountered with sodium bicarbonate and green when encountered with ferric chloride. Although 3,4-dihydroxybenzoic acid exists in plants, it is not suitable for large-scale production because of the few plants and low content that can be used as extraction sources. Chemical process preparation of 3,4-dihydroxybenzoic acid is not only unsafe, but also produces waste. Impact the environment. Compared with the former two, the biological method is green, environmentally friendly and in line with sustainable development, and more suitable for modern production.

3,4-dihydroxybenzoic acid has a variety of biological activities, and can play antioxidant, antibacterial, nerve protection, anti-hyperglycemia and other functions, so it is widely used in the medical field. In addition, 3,4-dihydroxybenzoic acid can also be used in feed, cosmetics and other industries.

3,4-dihydroxybenzoic acid, as a feed additive, can not only promote the growth and development of livestock and poultry, improve the immune function and the ability to defend against diseases, but also improve the meat quality and flavor of livestock and poultry.

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