Chemistry and significance of condensed tannins
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Chemistry and significance of condensed tannins by North American Tannin Conference (1st 1988 Port Angeles, Wash.)

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Published by Plenum Press in New York .
Written in English

Subjects:

  • Tannins -- Congresses.

Book details:

Edition Notes

Statementedited by Richard W. Hemingway and Joseph J. Karchesy ; associate editor, Susan J. Branham.
ContributionsHemingway, Richard W., 1939-, Karchesy, Joseph J., Branham, Susan J.
Classifications
LC ClassificationsQK898.T2 N58 1988
The Physical Object
Paginationxi, 553 p. :
Number of Pages553
ID Numbers
Open LibraryOL2196667M
ISBN 100306433265
LC Control Number89016320

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Get this from a library! Chemistry and Significance of Condensed Tannins. [Richard W Hemingway; Joseph J Karchesy; Susan J Branham] -- This book was developed from the proceedings of the first North American Tannin Conference held in Port. Angeles, Washington, August The objective of the conference was to bring together people. judybwolfman.com: Chemistry and Significance of Condensed Tannins (): Richard W. Hemingway: Books. Skip to main content. Try Prime Books Go Search EN Hello, Sign in Account & Lists Sign in Account & Lists Orders Try Cited by: Abstract. The importance of tannin-protein interactions in leathermaking and in plant-animal interactions has long been recognized, but detailed knowledge of the chemistry of the interaction has only recently become judybwolfman.com by: One particular type of condensed tannin, found in grape, are procyanidins, which are polymers of 2 to 50 (or more) Catechin units joined by carbon-carbon bonds. These are not susceptible to being cleaved by hydrolysis. While many hydrolyzable tannins and most condensed tannins are water-soluble, several tannins are also highly octanol-soluble.

Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met.5/5(1). Chemistry and Significance of Condensed Tannins de Richard W. Hemingway, Joseph J. Karchesy - English books - commander la livre de la catégorie sans frais de port et bon marché - . B. DEGRADATION OF CONDENSED TANNINS Despite all the work which has been described, very little indeed is known about the chemistry of condensed tannins, and, in common with the naturally occurring humic acids, lignins, and lignites, no method has been developed for their judybwolfman.com by: Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.. The term tannin (from Anglo-Norman tanner, from Medieval Latin tannāre, from tannum, oak bark) refers to the use of oak and other bark in tanning animal hides into judybwolfman.com extension, the term tannin is.

Condensed Tannin Structural Chemistry The most widely studied condensed tannins are based on the flavanols (-)-epicatechin and (+)-catechin. Addition of a third phenolic group on the B ring yields epigallocatechin and gallocatechin. postdoctoral associate, Dept. of Chemistry, Miami University. Oxford, Ohio Abstract Tannins are a diverse group of compounds which precipitate protein. The impact of tannins on herbivory has been difficult to assess because of diversity in tannin chemistry and in animal physiology. Com parison of the contents of this book with 'Chemistry and Significance of Condensed Tannins' that resulted from the proceedings of the 1st North American Tannin Conference shows the degree that these objectives were met. The chemistry of condensed tannins is discussed in some detail in Chapters 5 and 8 Chapter 5 Chapter 8. For this chapter, it will suffice to say that chemically, condensed tannins are polymers of flavonoid units (mainly flavanols) and are termed proanthocyanidins.