Tea polyphenols are the general term for polyphenols in tea, which have strong antibacterial and antiviral effects. Tea polyphenols have a remarkable antibacterial effect and broad antibacterial spectrum. Because tea polyphenols have no toxic side effects and have healthcare functions, they are widely used in food, chemical, medical and health industries.
Tea Polyphenols Antibacterial Function
1. Inhibitory effect on Gram-negative bacteria
Gram-negative bacteria generally refer to bacteria that are red in the Gram stain reaction. It is low in peptidoglycan and high in lipids in the cell wall. Pseudomonas aeruginosa, Escherichia coli, Haemophilus parasuis, and Fusobacterium nucleatum are all Gram-negative bacteria. These bacteria not only endanger human health, but also have a huge impact on the farming industry.
Based on antibacterial efficacy and safety considerations, tea polyphenols have become one of the most widely used natural food preservatives.
2. Inhibitory effect on Gram-positive bacteria
Gram-positive bacteria generally refer to bacteria whose Gram staining reaction is purple, with thicker cell walls, rich peptidoglycan content, and a large amount of special component teichoic acid. Staphylococcus aureus, Clostridium morarii, Bacillus subtilis, etc. are Gram-positive bacteria.
The emergence of resistant strains of these bacteria is driven by the substandard use of antibiotics. Therefore, there is an urgent need to develop green antibacterial agents for drug-resistant bacteria. Tea polyphenols are derived from tea leaves and belong to the "medicine and food homology" substance. Its antimicrobial properties should be studied
It has also attracted much attention and is expected to become a new green substitute for antibiotics.
Application and Use
1. Food preservation
Because tea polyphenols have strong antibacterial properties and have no toxic and side effects, they are often used as preservatives in the food processing industry. For example, in terms of cold fresh beef preservation, the combination of tea polyphenols and ice temperature preservation has a good antioxidant effect on beef. It can control the oxidative browning on the surface of cold fresh beef during storage, which is conducive to maintaining the stability of the meat color and effectively extending its shelf life.
2. Health care
Tea polyphenols are closely related to health care functions. Tea polyphenols can regulate dyslipidemia and intestinal flora disturbance in humans. Not only that, the metabolites produced by tea polyphenols through the biotransformation of intestinal flora also positively impact the host's health.
3. Animal Husbandry
Tea polyphenols can not only protect the intestinal micro-ecological environment in animals, but also enhance the quality of lean meat and improve feed remuneration. Studies have shown that tea polyphenols can be used as potential prebiotics to modify the composition and metabolism of intestinal microbiota through oral administration. In addition to improving the micro-ecological environment, tea polyphenols also have a positive regulatory effect on lean meat quality.
Summary
Tea polyphenols have broad-spectrum antibacterial and antiviral effects. It has obvious antibacterial effect on Gram-positive bacteria and Gram-negative bacteria. It also has a significant killing effect on RNA viruses and DNA viruses. Therefore, tea polyphenols are often used as preservatives and preservatives in the food processing industry. Qyherb Tea Polyphenols Powder is widely used in daily chemical, food processing, medical and health, animal husbandry and other industries.