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| Flavor quality changes of composite plastic blister packaged fragrant sunflower seed oil during accelerated oxidation |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.240070 |
| KeyWord:composite plastic blister fragrant sunflower seed oil accelerated oxidation GC-IMS flavor |
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| Abstract: |
| In order to provide a theoretical basis for exploring the stability and flavor quality changes of composite plastic blister packaged fragrant sunflower seed oil, a 4-month accelerated oxidation test was conducted on the composite plastic blister packaged fragrant sunflower seed oil. The changes in acid value and peroxide value were determined. The volatile compounds were analyzed using gas chromatography-ion mobility spectrometry (GC-IMS) and the principal component analysis was carried out, while sensory evaluations differential test was also carried out to investigate the changes in flavor quality of blister packaged fragrant sunflower seed oil during the accelerated oxidation process. The results showed that during the accelerated oxidation period, the acid value of fragrant sunflower seed oil increased slowly, while the peroxide value increased significantly, reaching 0.24 g/100 g after 4 months of storage, which was close to the national standard limit. A total of 65 volatile compounds were detected in fragrant sunflower seed oil by GC-IMS fingerprinting, of which the contents of 20 volatile compounds increased with the increase of accelerated oxidation time, and 5 volatile compounds decreased with the increase of accelerated oxidation time, and the contents of other 40 volatile compounds had no significant change. A total of 37 volatile compounds were identified, mainly including aldehydes, ketones, alcohols, esters and others. Differentiation of fragrant sunflower seed oil with different accelerated oxidation time was possible distinguished through principal component analysis. The results of sensory evaluations differential test showed that the accelerated oxidation samples showed significant differences compared with the initial fragrant sunflower seed oil. In conclusion, the flavor quality of composite plastic blister packaged fragrant sunflower seed oil has changed significantly during accelerated oxidation storage. |
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