植物油脂中反式脂肪酸含量及人体摄入量初估.pdfVIP

76 CH INA OILSAND FATS 2008 Vol33 No12 宋志华, 王兴国, 金青哲, 刘元法, 单 良 (江南大学 食品学院, 江苏 无锡 21 122 ) : 采用气相色谱法对 国常见植物油脂中的反式脂肪酸含量和分布进行了分析, 初步估算了 国 居民反式脂肪酸的人均日摄入量精炼植物油脂中反式脂肪酸含量为: 大豆油 089% ~ 3 8%, 菜 籽油 197% ~ 76%, 玉米油 175% ~ 619%, 葵花籽油 1 8% ~ 236%, 花生油010% ~ 0 7%, 棕榈油012% ~ 028%, 其存在形式以反式多不饱和脂肪酸( t - C182t- C183 )为主; 专用油脂中反 式脂肪酸含量为: 替可可脂( CBR)和植脂末用油 0% ~ 50%, 代可可脂( CBS)烘焙和夹心用油中 3% ~ 5% ,其存在形式以反式单不饱和脂肪酸( t- C181 )为主 国居民反式脂肪酸人均日摄入量为 106 g, 其中城市 1 g, 农村 092 g, 分别占日摄入总能量的 0 2% 061%和 036% : 植物油脂; 反式脂肪酸; 含量; 摄入量 : TQ 6 6 : A : 1003- 7969( 2008) 12- 0076- 0 Trans fatty acids content of vegetable oils and the daily dietary intake levels estimation SONG Zhihua, WANG X ingguo, JIN Q ingzhe, LIU Yuanfa, SHAN L iang ( School of Food Science Technology, Jiangnan U niversity, JiangsuWuxi 21 122, Ch ina) Abstract: The d istributions of trans fatty acids (TFAs) in common vegetable oilsw ere analyzed by gas chromatography and d ietary intake levelsw ere estmi atedMost ofTFAs in the refined oilsw ere trans poly unsaturated FAs ( PUFA s), including t - C182 and t - C183, and the contents of TFAs in the refined oils tested w ere as follow s: soybean oil 089% - 3 8% , rapeseed oil 197% - 76% , maize oil 175% - 619%, sunflow er seed oil 1 8% - 236% , peanut oil 010% - 0 7% and palm oil 012% - 028% A ll of the specialoils analyzedw eremainly composed of partially hydrogenated vegeta ble oilsw ith t- C181 being themajorTFA sThe contents ofTFA s in several special oils testedw ere: co coa butter replacer ( CBR) and powdered oil 0% - 50%, cocoa butter substitute ( CBS) and baking and filling oils 3% - 5% The daily per cap ita TFAs intake w as 106 g, city 1 g, rural 092 g