Identification of characteristic flavor compounds of boletus edulis from different regions based on by E-nose, HS-GC-IMS and HS-SPME-GC–MS
2024
Weilan Li | Luxi Zi | Ningmeng Xu | Hao Yang | Shihao Dong | Fen Qin | Lei Guo
In this study, E-nose, HS-GC-IMS, and HS-SPME-GC–MS technologies were used to evaluate the flavor characteristics of the pileus and stipe of Boletus edulis from eight origins. 23 key Volatile organic compounds (VOCs) with odor activity values (OAVs) > 1 were identified, and 19 aroma types have been identified in Boletus edulis at the same time. Vegetable and earthy were defined as the dominant aroma types for all pileus and stipe samples. Balsamic and musty were the main and characteristic aroma types for the pileus. The highest concentrations of VOCs in the pileus and stipe were originated from Chuxiong Prefecture and Aba Prefecture, respectively. 19 and 16 key VOCs were detected Chuxiong pileus and Aba stipe, respectively, and Methional was the decisive compound that influenced the vegetable aroma type. The results of this study could be helpful for flavor identification and application of pileus and stipe from Boletus edulis.
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