Research progress on application of epigallocatechin-3-gallate in aquaculture.

In recent years, plant extracts have been widely used in the animal husbandry because of their naturalness, low toxicity and minimal residue. Green tea is a kind of traditional drink. The polyphenols contained in the green tea have many pharmacological activities. EGCG is the main abundant phenolic active substance in the green tea polyphenols, and it is also one of the main active components of catechin that plays a pharmacological role. EGCG has various biological functions such as antioxidant, antibacterial, antiviral, anti-parasitic and enhancing immunity, and can inhibit cyanobacteria bloom and regulate water quality. It has broad application prospects in the aquaculture. In the paper, the properties, extraction technology, biological function and research progress of EGCG in aquaculture are reviewed, aiming to provide further reference for the application of EGCG in aquaculture. [ABSTRACT FROM AUTHOR]