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Group of California Winemakers Debunks UC Davis Research

December 9, 2008

SAN LUIS OBISPO, Calif., Dec. 9 /PRNewswire/ — A consortium of California
winemakers has invalidated The Adams-Harbertson Tannin Assay, which has been
publicized by the University of California at Davis Viticulture and Enology
faculty as an accurate scientific method for tracking tannin concentration in
wine. The Journal of the Association of Official Analytical Chemists published
a study undertaken by a consortium of winemakers that shows extremely poor
precision and incorrectly under-reports tannin concentration. High
concentrations of tannin negatively affect wine quality. According to Larry
Brooks
of LM Brooks Consulting, “My clients repeatedly failed at attempts to
utilize the Adams-Harbertson assay in their winemaking. This led me to
undertake this validation study.”

Brooks has also said, “In my opinion, if wine is becoming a research
backwater, then enology (wine science) is at risk of not validating and
replicating all the potentially good academic research before it is applied by
winemakers. In a case like this where an invalid method is used and published
in research journals before it was independently validated, enology risks
gaining the reputation of pathological science. It’s unfortunate, too.”

Larry Brooks, the proprietor of Brooks Consulting, has worked as a
winemaker for thirty years. He has worked with a wide range of clients in
California and elsewhere. He has particular expertise in the applications of
wine science to winemaking.

If you’d like more information about this topic, or to schedule an
interview with Larry Brooks, please call 805-788-0729 or email at
lmbrooks@pacbell.net

Interested parties are encouraged to visit the following website of
Association of Official Analytical Chemists:
http://tinyurl.com/6eboam

    References:

    Wine Business Monthly:

http://winebusiness.com/html/MonthlyArticle.cfm?dataid=48466

http://winebusiness.com/ReferenceLibrary/webarticle.cfm?dataId=54146

    University of California, Davis:

http://boulton.ucdavis.edu/uv-vis/adamsassay.htm

    University of Washington, Pullman:

http://sfs.wsu.edu/facultystaff/Harbertson.html

    Contact:
    Larry Brooks
    Tel: (805) 788-0729
    Email: lmbrooks@pacbell.net

This release was issued through eReleases(TM). For more information,
visit http://www.ereleases.com.

SOURCE LM Brooks Consulting


Source: newswire



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