A collection of tannins extracted from various plant species was subjected to thermally assisted hydrolysis and methylation (THM) using tetramethylammonium hydroxide. The products obtained included 1,3,5-trimethoxybenzenes, derived from A rings of condensed tannins (CTs), and 1,2-dimethoxybenzene, 1,2,3-trimethoxybenzene, and derivatives as major products from the B ring. 1,2,4-Tri- and two tet...

Plant tannins, including hydrolysable and condensed varieties, are well known antioxidants in medicinal plants, foods, and edible fruits. Phenolic compounds and flavonoids are a unique category of plant phytochemicals especially in terms of their vast potential health-benefiting properties. Tannins are potential antioxidants. They have been considered to be cardioprotective, anti-inflammatory, ...

Polyethylene glycol (PEG 4000), Browse Plus (BP), wood ash (WA) and boiling water were evaluated as tannin deactivation methods on tannins in Acacia nilotica fruits. Twenty four Matebele goats of mean body mass, 38.7 ± 3.12 kg, were used in a digestibility and nitrogen balance trial. A completely randomized design was used, and the initial weight was used as a covariate in data analysis. The go...

a phytochemical screening of fifty five iranian plants belonging to 21 families was carried out. a qualitative phytochemical analysis was performed for the presence of alkaloids, tannins, saponins and flavonoids. the medicinal uses of these plants are also reported.

In spite of the numerous-available clones and cultivars of date palm, few of them produce non-astringent dates at the khalal stage. The astringent fruit must convert to the rutab stage to be edible as fresh dates which means the conversion of soluble tannins to the insoluble form. Applications of the ethylenereleasing compound, namely, Ethrel, even at very high concentrations failed to induce r...