Research by Spanish scientists has found that resveratrol, the polyphenol abundant in red wine that is believed to play a key role in delaying the onset of coronary heart disease, may also be effective in preventing postharvest rot in grapes and other fruits.

Study results showed that dousing table grapes and other fruits with a solution of commercially available resveratrol helps inhibit molds and keep them fresh for extended periods. Apples treated with the resveratrol wash stayed in perfect condition for 75 days at room temperature, remaining firm, juicy, and flavorful. Untreated fruit succumbed to complete disintegration over the same period.

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