Flavonoid sugar addition products, method for manufacture and use thereof
The present invention relates to flavonoid sugar addition products and a method for making the same. It also relates to the use of these addition products for modifying the taste of food products.
1. A flavonoid sugar-addition product, comprising (−)-catechin-6-C-β3-D-glucopyranoside, (−)-catechin-8-C-β3-D-glucopyranoside, (−)-catechin-6-C-8-C-β3-D-diglucopyranoside or (−)-epicatechin-6-C-8-C-β3-D-diglucopyranoside or the same aglycons with galactoside residues or with another reducing sugar.
2. A composition comprising an addition product according to claim 1 .
3. The composition of claim 2 , wherein the composition is selected from the group consisting of food products, pharmaceutical preparations and cosmetics and the addition product is present in an amount effective for reducing bitter and/or astringent taste in the composition.
4. The composition according to claim 2 which is an edible product.
5. The composition according to claim 4 which is a modified plant extract.
6. The composition according to claim 4 wherein the composition further comprises cocoa or a cocoa-based product.
7. The composition according to claim 4 wherein the composition further comprises coffee or a coffee-based product.
8. A process for manufacturing the addition product according to claim 1 , comprising the step of reacting a flavonoid-containing starting material with a sugar at a pH of 8 to 12, wherein the starting material is catechin or epicatechin and wherein the sugar is a glucose or galactose or another reducing sugar.