By the approach of adding tannins into extracts of Chinese medicinal herbs,the adsorption selectivity of this adsorbent to condensed tannins was extensively investigated.

Study on extraction of condensed tannins from Acacia mearnsii bark;

The appropriate extraction conditions of polyphenols and condensed tannins from branchlets of Casuarina glauca were discussed in this paper.

With colorimetric methods,the concentrations of total phenolics,flavonoids and condensed tannins were measured in nine categories of organs within Populus euphratica,including lanccolate leaves,ovate leaves,green branches,branches(D <5 mm in diameter),branches(5-10 mm),barks,roots(D<2 mm in diameter),roots(2-5 mm) and roots(5-10mm).

Microwave-assisted method used to extract condensed tannin of Yunnan pine bark

Content differences of condensed tannin in needles of Larix gmelinii by cutting needles and insect feeding

This paper is about using stiasny test to determine the condensed tannin contents of Xing’an larch vegetable tannin extract.

There is a kind of esters of caffeic acid in which chlorogenic acid is a main part, simple polyphenols, concluding (+)-catechin and (-)-epicatechin, apple condensed tanin, glycoside including phlorizin, rutin and microscale guercetin, and a kind of anthocyanin in the polyphenols extracted from the immature apples.

Under microwave irradiation and in the presence of pyridine as catalyst,a series of modified rosin-condensed tannins esters were synthesized by O-acylation reaction between condensed tannins and modified rosin chloride.