| 阴离子交换树脂及气相色谱法测定腊肉中的游离脂肪酸 |
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| 引用本文： | 傅樱花,马长伟.阴离子交换树脂及气相色谱法测定腊肉中的游离脂肪酸[J].食品科技,2003(3):82-84. |
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| 作者姓名： | 傅樱花 马长伟 |
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| 作者单位： | 中国农业大学食品学院,北京,100094 |
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| 摘 要： | 建立一种测定腊肉中游离脂肪酸(FFA)组成及含量的方法,以Amberlyst-26阴离子交换树脂分离纯化腊肉中的FFA,用十五烷酸(C15:0)作内标,以BF3-CH3OH、苯、甲醇为甲酯化试剂,将得到的甲酯化产物用正己烷萃取后进行气相色谱分析,所采用的色谱柱为毛细管石英柱(FFAP型)。各脂肪酸浓度在4～32mg/mL范围内具有良好线性关系,对各次加入不同量C12:0、C14:0、C16:0、C18:0、C18:1的回收率为93.91%～95.71%,重复性实验中各脂肪酸的变异系数CV%为1.77%～3.82%,方法可靠。
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| 关 键 词： | 阴离子交换树脂 气相色谱 游离脂肪酸 腊肉 |
| 文章编号： | 1005-9989(2003)03-0082-03 |
| 修稿时间： | 2002年11月26 |
Determination of free fatty acid in chinese bacon by anion exchanger resin and gas chromatography |
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| Fu ying -hua MA Chang -wei.Determination of free fatty acid in chinese bacon by anion exchanger resin and gas chromatography[J].Food Science and Technology,2003(3):82-84. |
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| Authors: | Fu ying -hua MA Chang -wei |
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| Abstract: | Amethod for determination of the fre e fatty acid in bacon was founded .FFA s in bacon were purified by Amberlyst -26(A-26)strong basic anion exchanger resin,using C 15:0 as internal standard(IS),FFAs were catalysed by boron triflu o-ride -methanoland converted into th e methylester,finally determined b y GC.The result proved that the recovery,precision and linear ofrelationship of the method were perfect,so believed thatthe me thod was reasonable to determine the FFAs in Bacon. |
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| Keywords: | anion exchanger resin gas chromato graphy free fatty acid bacon |
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