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Characterization of Volatile Profiles of Six Popular Edible Mushrooms Using Headspace-Solid-Phase Microextraction Coupled with Gas Chromatography Combined with Chemometric Analysis
- Source :
- Journal of Food Science. 84:421-429
- Publication Year :
- 2019
- Publisher :
- Wiley, 2019.
-
Abstract
- The classification of six mushroom species (white beech, brown beech, button, oyster, king oyster, and enoki mushrooms) was successfully achieved using canonical discriminant analysis (CDA) on volatile metabolite data sets obtained by headspace-solid-phase microextraction gas chromatography (HS-SPME-GC). Twenty-seven major volatile compounds in six edible mushrooms were positively identified by HS-SPME-GC mass spectroscopy. The total volatile content was highest in brown beech mushroom (P < 0.05). Significant difference in volatile profile was observed between brown beach and white beech mushrooms. Button mushroom contained significantly higher contents of benzaldehyde and benzyl alcohol than the other mushrooms (P < 0.05). Oyster mushroom contained 1-octen-3-ol as the most prevalent volatile, representing 67% out of total volatiles. Hexanal (35.0%) and 1-octen-3-ol (22.5%) were the most abundant volatiles found in king oyster. Hexanal (29.1%) was the most prevalent volatile in enoki mushroom only. Several volatile pairs with very high positive correlation in their levels were identified, representing the highest correlation coefficient (r = 0.970) for the pair of t-2-octenal and 2,4-octandienal. CDA was much more efficient than principal component analysis for the differentiation of mushroom species. PRACTICAL APPLICATION: The present study provided the important information on the volatile metabolite profiles of popular six commercial mushroom species. The present data will be useful for the quality control of mushrooms cultivated in farms and mushroom products processed in food industry. The strategy of canonical discriminant analysis in combination with HS-SPME-GC could be expanded for the determining the authentication of mushroom species.
- Subjects :
- 0303 health sciences
Oyster
Mushroom
biology
Food industry
030309 nutrition & dietetics
business.industry
04 agricultural and veterinary sciences
biology.organism_classification
Solid-phase microextraction
040401 food science
Hexanal
03 medical and health sciences
chemistry.chemical_compound
0404 agricultural biotechnology
chemistry
biology.animal
Food science
Gas chromatography
business
Canonical discriminant analysis
Beech
Food Science
Subjects
Details
- ISSN :
- 00221147
- Volume :
- 84
- Database :
- OpenAIRE
- Journal :
- Journal of Food Science
- Accession number :
- edsair.doi...........dafa314a8d8ed8772e7d3eeb4db9b2e0