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Wine In A Box? Think 'Good' Not 'Gauche'

Date:
June 15, 2009
Source:
American Chemical Society
Summary:
In a surprise discovery that may help boxed wine shake off its image as a gauche alternative to bottles, scientists in Canada are reporting that multilayer aseptic cartons (a.k.a. 'boxes') may help reduce levels of substances that contribute odors to wine and can lower its quality.

Compared with bottled wine, boxed wine appears to have lower levels of certain chemicals that can mask its fruity and floral taste, scientists report.
Credit: Wikimedia Commons

In a surprise discovery that may help boxed wine shake off its image as a gauche alternative to bottles, scientists in Canada are reporting that multilayer aseptic cartons (a.k.a. 'boxes') may help reduce levels of substances that contribute odors to wine and can lower its quality.

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Gary Pickering and colleagues note that trace amounts of chemicals called alkyl-methoxypyrazines (MPs) are generally negative to wine quality, masking the desirable fruity and floral flavors and giving wine an unpleasant green taste. With the wine industry still searching for a way of reducing MP levels, the scientists decided to look at the effects of wine packaging and closures like corks and screw caps.

They added MPs to red and white wines and monitored levels of MPs for 18 months in wine packaged in boxes and bottles with natural cork, synthetic cork, or screw caps. Boxed wine had less MPs — up to 45 percent less — than any other packaging. Bottles sealed with synthetic cork and screw caps performed best, with natural corks associated with the highest levels of MPs.

One concern with the boxed wine, however, was evidence of greater oxidation of the wine, which itself is undesirable during wine storage.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Blake et al. Effect of Closure and Packaging Type on 3-Alkyl-2-methoxypyrazines and Other Impact Odorants of Riesling and Cabernet Franc Wines. Journal of Agricultural and Food Chemistry, 2009; 57 (11): 4680 DOI: 10.1021/jf803720k

Cite This Page:

American Chemical Society. "Wine In A Box? Think 'Good' Not 'Gauche'." ScienceDaily. ScienceDaily, 15 June 2009. <www.sciencedaily.com/releases/2009/06/090608091339.htm>.
American Chemical Society. (2009, June 15). Wine In A Box? Think 'Good' Not 'Gauche'. ScienceDaily. Retrieved April 24, 2015 from www.sciencedaily.com/releases/2009/06/090608091339.htm
American Chemical Society. "Wine In A Box? Think 'Good' Not 'Gauche'." ScienceDaily. www.sciencedaily.com/releases/2009/06/090608091339.htm (accessed April 24, 2015).

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