Catechin tannins

The causes of food shortages in developing countries are many and frequent. This work was conducted in order to evaluate some physico-chemical properties of two varieties of dried okra consumed in Côte d'Ivoire.

5p viisac 23-09-2023 1 1   Download

This research paper concentrated on studies on the effect of pretreatments on the quality of grape wine. The changes due to pretreatments on the functional properties are such as total phenols, tannins and catechins. Hence, various thermal treatments such as microwave with a combination of 300 W for 2, 4 and 6 min and conventional thermal pasteurization at 50, 60, 70°C with the time interval of 30 and 60s were applied to the grape must to study the extraction efficiency of polyphenols.

10p nguathienthan5 04-06-2020 37 1   Download

The flavan-3-ols catechin and epicatechin, and their polymerized oligomers, the proanthocyanidins (PAs, also called condensed tannins), accumulate to levels of up to 15 % of the total weight of dry seeds of Theobroma cacao L.

16p vihashirama2711 21-05-2020 18 1   Download

Chương 8: CÁC HỢP CHẤT CÓ NGUỒN GỐC THỨ CẤP Tannin Các acide hữu cơ Glycoside Alkaloid Terpen Cao su và nhựa kết .TANNIN 1. Các tannin có thể thủy phân được: .TANNIN 2. Tannin không thể thủy phân được: Bao gồm catechin và gallocatechin. Hai chất này khi phản ứng với gallic acide sẽ tạo catechingallate và gallocatechingallate .CÁC ACIDE HỮU CƠ 1. Citric acide 2. Malic acide 3. Oxalic acide 4. Tatric acide .GLYCOSIDE 1. S – glycoside 2. N – glycoside 3. C – glycoside 4. O - glycoside...

21p tuquy1 29-01-2010 361 100   Download