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| Optimization of HS-SPME and identification of aroma-active substances in fragrant sunflower seed oil by GC-O-MS |
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| DOI： |
| KeyWord:fragrant sunflower seed oil HS-SPME GC-O-MS volatile substance aroma-active substance |
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| Abstract: |
| In order to improve the extraction effect of flavor substances and identify the aroma-active substances in fragrant sunflower seed oil, the extraction conditions of headspace solid-phase microextraction (HS-SPME) were optimized, then the aroma-active substances of fragrant sunflower seed oil were separated and identified by GC-O-MS. The results showed that the optimal HS-SPME extraction conditions for fragrant sunflower seed oil were obtained as follows: 3 g sample, DVB/CAR/PDMS extraction fiber length 2 cm, extraction temperature 70℃, and extraction time 50 min. A total of 63 volatile substances were identified by GC-O-MS in the fragrant sunflower seed oil (roasting sunflower seed kernel at 160℃ for 25 min), of which 12 were aroma-active substances, including 4 pyrazines (roasted and nutty aromas), 2 furans (caramel-like and sweet aromas), 4 aldehydes (green, fruint and fatty aromas), 1-octen-3-ol (mushroom-like aroma) and α-pinene (woody aroma). The aroma-active substances in fragrant sunflower seed oil can be identified by HS-SPME-GC-O-MS. |
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