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顶空固相微萃取—气质联用测定3种食用植物油中香精的挥发性成分
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Detection of volatile components in three edible vegetable oils by solid phase micro-extraction-gas chromatography-mass spectrometry
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    摘要:

    采用顶空—固相微萃取—气质联用(HS-SPME-GC-MS)技术检测食用植物油中芳香性物质的非法添加。以不同品牌的花生油、葵花籽油、芝麻油、花生油香精、葵花籽油香精、芝麻油香精为研究对象,采用HS-SPME-GC-MS进行分离鉴定,得到相应的图谱指纹库。结果显示:花生油、葵花籽油、芝麻油主要挥发性物质为醛类与吡嗪类物质,分别约占总挥发物含量的70%;花生油香精、葵花籽油香精、芝麻油香精主要为酯类和酚类物质,分别约占总挥发物含量的60%、70%、75%。上述结果表明,食用植物油与其对应香精的指纹图谱存在明显差异,因此HS-SPME-GC-MS法可以作为检测食用植物油中非法添加芳香性物质的有效手段。

    Abstract:

    The aromatic substances illegally added in edible vegetable oil were detected by headspace solid-phase microextraction - gas chromatography-mass spectrometric (HS-SPME-GC-MS). Different brand of peanut oil, sunflower oil, sesame oil and their essences were separated and identified by HS-SPME-GC-MS, the spectra were obtained. The result showed that the main volatile substances in peanut oil, sunflower oil and sesame oil were aldehydes and pyrazine, which account for about 70% of total volatile matter, respectively; that in their essences were esters and phenols, which account for about 60%,70% and 75%, respectively. The result showed that since the fingerprints of GC/MS chroamtograms of vegetable oil were of great differences from those of corresponding essences, HS-SPME-GC-MS can be an effective analytical method to detect the illegal addition.

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于丛丛,王玥,金俊,刘一军,金青哲.顶空固相微萃取—气质联用测定3种食用植物油中香精的挥发性成分[J].粮油食品科技,2017,25(2):56-61.

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  • 在线发布日期: 2017-03-23
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