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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引用本文: | 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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作者姓名: | 于丛丛 王玥 金俊 刘一军 金青哲 |
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作者单位: | 江南大学食品学院,食品科学与技术国家重点实验室,食品营养与安全协同创新中心,江苏 无锡 214122,张家港出入境检验检疫局,江苏 张家港 215600,江南大学食品学院,食品科学与技术国家重点实验室,食品营养与安全协同创新中心,江苏 无锡 214122,张家港出入境检验检疫局,江苏 张家港 215600,江南大学食品学院,食品科学与技术国家重点实验室,食品营养与安全协同创新中心,江苏 无锡 214122 |
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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。
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关 键 词: | 食用植物油 香精 气质联用 固相微萃取 挥发性成分 |
Detection of volatile components in three edible vegetable oils by solid phase micro-extraction-gas chromatography-mass spectrometry |
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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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Keywords: | edible vegetable oil essence gas chromatography-mass spectrometry (GC-MS) solid-phase microextraction volatile component |
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