Top-Tan CR is made from grape tannin, primarily derived from grape seeds, and is specific to the stabilizing action on the color of red wines. As stated, grape seed tannins are very reactive and contribute directly to the stabilization of color by directly binding with anthocyanins. This re-activity causes a slight astringency and an excessive tannic nature in the wine when the tannin is added. These sensations fade with time as tannins integrate with the polyphenols of wine, thus contributing to the softness and structure of the wine. In order to improve the effectiveness of the condensation reaction, the product formulation contains some ellagitannin. This compound not only promotes the combination reactions, but it also offers protection against oxidation.
Dal Cin manufactures and specializes in bentonites and clarification/filtration media for solid and liquid separation. Their products are used in the filtration of juices, beer, waste waters and solvents for example. Dal Cin has world wide distribution.
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