Tannins and Polyphenols Extracted from Natural Plants and Their Versatile Application

Modification of Polycaprolactone with Plant Extracts to Improve the Aging Resistance

“…Substances containing natural polyphenols derived from plants show enormous potential as effective anti-aging compounds due to their composition and chemical structure. Polyphenols are readily available and do not require special chemical synthesis processes [ 30 , 31 ].…”

Comparative toxicity, phytochemistry, and use of 53 Philippine medicinal plants

“…Tannins, which were present in most of the ethanolic plant extracts, are secondary metabolites that have pharmacological importance due to their astringent action. They promote rapid healing and formation of new tissues on wounds and inflamed mucosa [ 172 , 173 ]. They exhibit antimicrobial, antidiabetic, anti-inflammatory, antibacterial, and anti-tumor activities and reportedly inhibit HIV replication [ 119 , [174] , [175] , [176] ].…”

Tackling breast cancer with gold nanoparticles: twinning synthesis and particle engineering with efficacy

“…Secondary metabolites produced in plants mainly contribute to the defense mechanism owing to the presence of phenolic or reducing groups that act as anti-oxidants to protect plants from harmful biological or environmental factors. 114 Plant derived metabolites like polyphenols (phenolic acids, flavonoids, lignans, and tannins), alkaloids, terpenoids, reducing sugars, glycosides, saponins, proteins and organic acids are of interest in the synthesis of AuNPs [Table 3]. Among the metabolites, particularly flavonoids are widely used due to their high reducing efficacy as well as stabilizing property.…”