Changes of Volatile Flavor Compounds in Different Parts of Tricholoma matsutake during Shelf Life Analyzed by Electronic Nose Combined with Gas Chromatography-Ion Mobility Spectrometry
In order to investigate trends in the odor profiles of different parts (cap and stipe) of Tricholoma matsutake during the shelf-life, the present study used an electronic nose and gas chromatography-ion mobility spectrometry (GC-IMS) combined with principal component analysis (PCA) and cluster analy...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
China Food Publishing Company
2024-12-01
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| Series: | Shipin Kexue |
| Subjects: | |
| Online Access: | https://www.spkx.net.cn/fileup/1002-6630/PDF/2024-45-23-026.pdf |
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| Summary: | In order to investigate trends in the odor profiles of different parts (cap and stipe) of Tricholoma matsutake during the shelf-life, the present study used an electronic nose and gas chromatography-ion mobility spectrometry (GC-IMS) combined with principal component analysis (PCA) and cluster analysis to analyze the changes of volatile flavor substances in T. matsutake at different points of the shelf-life. The results showed that a total of 48 volatile organic compounds (VOCs), including 10 aldehydes, 6 alcohols, 5 ketones, 4 sulfur-containing compounds, 9 esters, 2 acids, 3 alkenes, 9 other volatile substances such as heterocyclic compounds, and 15 unidentified volatile compounds, were detected. The stipe contained a richer variety of volatile substances than the cap. In general, the types and contents of volatile substances in T. matsutake continued to decrease during the shelf-life period. The inflection point of volatile substances occurred after around 24 h for the cap, and after both around 12 and 48 h for the stipe. In conclusion, the combination of electronic nose and GC-IMS can be used to quickly and intuitively analyze the differences in volatiles between the cap and stipe of T. matsutake at different time points of the shelf-life, thereby helping to determine the freshness of T. matsutake. |
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| ISSN: | 1002-6630 |