Tannins are also called plant polyphenols. It is a kind of polyphenol compound widely existing in plants.
Tannins can be used as potential biomarkers. The ability to bind to proteins is also known as astringency or
astringency. Its convergence is the basis of many physiological activities, such as hemostasis, anti-tumor,
anti-aging and other physiological activities. It is also one of the factors that affect the taste of the product.
According to the spectral characteristics, tannins have strong UV absorption at 275 nm. Activated carbon
can adsorb tannin specifically. The tannin content can be detected by this property.
Reagents and Equipment Required but Not Provided.
Ultraviolet spectrophotometer, centrifuge, water bath, adjustable pipette, 1 mL quartz cuvette and distilled
water.
