食品科学
食品科學
식품과학
FOOD SCIENCE
2009年
22期
286-289
,共4页
郭涛%杜蕾蕾%万辉%何东平
郭濤%杜蕾蕾%萬輝%何東平
곽도%두뢰뢰%만휘%하동평
菜籽油%地沟油%胆固醇%色谱
菜籽油%地溝油%膽固醇%色譜
채자유%지구유%담고순%색보
rape seed oil%hogwash oil%cholesterol%chromatography
利用高效液相色谱法测定地沟油中胆固醇含量,继而定性分析食用油中是否掺地沟油.实验结果表明,当待检菜籽油样品中胆固醇的含最大于0.05mg/g时,可以很明显地观察到胆固醇色谱峰,且菜籽油中胆固醇含量随地沟油的增加呈线性增加,而合格的食用植物油末检测出胆固醇.可利用此特征作为判断植物油中是否掺混了地沟油的依据.
利用高效液相色譜法測定地溝油中膽固醇含量,繼而定性分析食用油中是否摻地溝油.實驗結果錶明,噹待檢菜籽油樣品中膽固醇的含最大于0.05mg/g時,可以很明顯地觀察到膽固醇色譜峰,且菜籽油中膽固醇含量隨地溝油的增加呈線性增加,而閤格的食用植物油末檢測齣膽固醇.可利用此特徵作為判斷植物油中是否摻混瞭地溝油的依據.
이용고효액상색보법측정지구유중담고순함량,계이정성분석식용유중시부참지구유.실험결과표명,당대검채자유양품중담고순적함최대우0.05mg/g시,가이흔명현지관찰도담고순색보봉,차채자유중담고순함량수지구유적증가정선성증가,이합격적식용식물유말검측출담고순.가이용차특정작위판단식물유중시부참혼료지구유적의거.
Cholesterol content was determined with HPLC method for identification of hogwash oil-adulterated rapeseed oil. A good linear correlation between the adulteration amount of hogwash oil and the cholesterol content, and cholesterol was not detected in qualified rapeseed oil. Thus cholesterol content could be used as an indicator for identification of oil adulterated with hogwash oil with the lowest detection limit of 0.05 mg/g.
