杜杰.气相色谱法测定食用油中的植物甾醇[J].中国油脂,2021,46(9):145~148.[DU Jie.Determination of phytosterols in edible oil by GC[J].China Oils and Fats,2021,46(9):145~148.]
气相色谱法测定食用油中的植物甾醇
Determination of phytosterols in edible oil by GC
  
DOI:
中文关键词:  食用油  植物甾醇  气相色谱  内标
英文关键词:edible oil  phytosterol  GC  internal standard
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作者单位
杜杰 佳格投资(中国)有限公司上海 201103 
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中文摘要:
      对食用油进行皂化前处理,以胆甾烷醇为内标,采用气相色谱法测定菜籽甾醇、菜油甾醇、豆甾醇和β-谷甾醇4种植物甾醇含量。结果表明:该方法测定食用油中植物甾醇的专一性强,方法的检出限和定量限分别为3.00~3.30 mg/100 g和9.00~11.00 mg/100 g,精密度(RSD)为0.89%,回收率为90.51%~110.25%。该方法用于测定食用油中4种植物甾醇有效可靠。
英文摘要:
      The edible oil was saponified, and the contents of brassicasterol, campesterol, stigmasterol and β-sitosterol were determined by GC method with cholesterol as internal standard. The results showed that determination of phytosterols in edible oil by GC- internal standard method was highly specific. The limits of detection and quantitation were 3.00-3.30 mg/100 g and 9.00-11.00 mg/100 g, respectively. The precision and recovery rate were 0.89% and 90.51%-110.25%, respectively. The method was reliable on analysing of four phytosterols in edible oil.
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