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  trans fat: 反式脂肪酸
[ 2006-02-14 12:29 ]

近日,全球最大的快餐集團(tuán)麥當(dāng)勞公開承認(rèn),根據(jù)美國去年年底起用的新方法檢測結(jié)果顯示,在每份麥當(dāng)勞薯?xiàng)l中,反式脂肪酸含量從過去的6克增加到8克,整體脂肪酸總含量從過去的25克增加到30克。每份麥當(dāng)勞炸薯?xiàng)l中不利于身體健康的反式脂肪酸含量比以前增加了1/3。美國食品與藥物管理局(FDA)稱,反式脂肪酸可增加人體"不良膽固醇",增加患心臟病的風(fēng)險(xiǎn),這再次引發(fā)了外界對(duì)食品安全的質(zhì)疑。

外電如下:The Financial Times said that McDonald's revealed a new reading on the level of the potentially harmful substance under new U.S. government rules on food labels to specify the level of the trans fat in food products.

McDonald's has upped its estimates for the trans fat in its french fries by one-third, according to a published report. The newspaper reports that the company is now reporting that a larger order of its french fries have eight grams of trans fats, rather than the previously-reported six grams.

新聞中的trans fat就是"反式脂肪酸"。Tran-在英文中通常作為前綴和其它詞相互搭配,表示through(貫通),如:transcontinental(橫貫大陸的); 表示change(變化;移動(dòng)),如:transliterate(翻譯);表示across, beyond(橫跨,越過),如:transpolar(橫跨南極的)。

本句中的tans是化學(xué)用語,表示having a pair of identical atoms on opposite sides of two atoms linked by a double bond(反式的),指"由雙鍵連接的兩個(gè)原子的相對(duì)兩側(cè)有一對(duì)相同的原子的",其存在于植物性奶油、馬鈴薯片、沙拉醬、餅干以及薯?xiàng)l等食物中,這種物質(zhì)也可以通過氫化過程合成。另外,fat在這里指fatty acid(脂肪酸)。


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