Gradual Optimization of Headspace Solid-Phase Microextraction Conditions of Volatiles in Pepper Chicken Soup Combined with Gas Chromatography-Mass Spectrometry and Principal Component Analysis
Table 2
Comparison of extraction effect before and after optimization.
Category
Peak area
Qualitative method
Significance
Before optimization
After optimization
Change
Total peak area
5.65E+7±7.67E+5
7.55E+7±5.38E+5
↗
Total peak number
40.0±1.00
46.0±1.00
↗
Sabinene
7.30E+5±4.01E+4
7.28E+5±3.31E+5
↘
MS/RI
1-Phellandrene
0.00±0.00
1.09E+5±6.20E+4
↗
MS/RI
Linalool
1.77E+7±2.46E+5
1.86E+7±3.96E+5
↗
MS/RI
β-Myrcene
1.10E+6±4.59E+4
10.38E+5±2.83E+4
↘
MS/RI
Limonene
7.34E+6±2.52E+5
6.44E+6±2.72E+5
↘
MS/RI
Ocimene
4.88E+5±1.40E+4
5.16E+5±1.91E+5
↗
MS/RI
Anethole
3.18E+6±1.53E+5
5.10E+6±1.16E+5
↗
MS/RI
α-Terpineol
5.32E+5±2.36E+4
7.47E+5±1.26E+5
↗
MS/RI
Dipropyl Disulfide
1.30E+5±1.07E+4
1.62E+5±1.51E+4
↗
MS/RI
(E,E)-2,4-Decadienal
1.35E+5±7.40E+3
2.43E+5±8.30E+3
↗
MS/RI
Difference is significant (p<0.05). Difference is extremely significant (p<0.01). ↗ Peak area increased after optimization. ↘ Peak area decreased after optimization.
