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Tannin amount, structure, and extractability in various red varieties

These Italian authors study in detail the nature of tannins in several red varieties. Unlike apple or chocolate tannins, grape tannins are extremely complex, and the study practical application is not obvious yet.

 

The full text is available at: http://www3.interscience.wiley.com/cgi-bin/fulltext/121433889/PDFSTART

 

209 differences in the extractability of tannins in various varieties.pdf