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Sweet potatoes contain fiber, vitamin A and calcium. But the way that scientists think they can make them even more healthful is literally shocking. Researchers found that giving a jolt of electricity to sweet potatoes increased the level of antioxidants known as polyphenols by 60 percent.
甜土豆富含纖維，維生素A和鈣。但是科學(xué)家心目中的更健康的食用方式簡直令人震驚。研究人員發(fā)現(xiàn)給甜土豆充電會將抗氧化劑（即多酚）的水平提高60%。
The investigators placed sweet potatoes in a solution of sodium chloride. They found that 0.2 amps of direct current gave the potatoes nearly one and a half times more antioxidants than potatoes that weren't shocked. The research was presented at the National Meeting of the American Chemical Society.
調(diào)查人員將甜土豆放置在氯化鈉溶液中。他們發(fā)現(xiàn)0.2安培的直流電會讓土豆產(chǎn)生比正常狀態(tài)多出將近1.5倍的抗氧化劑。美國化學(xué)學(xué)會國內(nèi)會議展示了這項研究。
It seems that the electric zap stressed the potatoes into producing more polyphenols as a protective mechanism. And the treatment did not sacrifice flavor.
似乎電擊能刺激土豆產(chǎn)生更多的抗氧化物，對土豆來說也許是一個保護(hù)機(jī)制。同時電擊并不影響土豆原有的口味。
Previous research has shown that electrically supercharging white potatoes increases antioxidant levels. So perhaps it's only a matter of time before other fruits and vegetables get shock therapy, too.
之前的研究也顯示，高壓電擊土豆會提高抗氧化劑水平。也許讓其它水果，蔬菜接受“電療”以增加營養(yǎng)價值只是時間問題了。
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