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Readers bugged by wine-spoiling stinkbugs
Apr 19, 2017
(Sciencenews) - Stinkbugs accidentally harvested with grapes and fermented during the winemaking process release a pungent stress compound. It takes only three stinkbugs per grape cluster to ruin red wine’s taste, Elizabeth S. Eaton reported in “Red wine has stinkbug threshold” (SN: 3/18/17, p. 5).
“Does contamination of wine by the bugs’ stress compound pose any health risk to consumers?” asked Hal Heaton. “And does someone really count the number of stinkbugs on each of the huge number of grape bunches picked?”
The hormone emitted by stressed stinkbugs, (E)-2-decenal, is also found in cilantro, says Elizabeth Tomasino, a food scientist at Oregon State University in Corvallis who did the research. “It is actually found at much higher concentrations in cilantro than in wine and is not a health risk,” Tomasino says.
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