Insights into VOCs variation derived from Chinese black truffles (<i>Tuber indicum</i>) between grades via <i>E</i>-nose, HS-SPME-GC-MS, and HS-GC-IMS.

ABSTRACT: This study investigated volatile organic compound (VOC) variations across commercial grades (G1, G2, G3) of Chinese black truffles (Tuber indicum) using electronic nose (E-nose), headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS), and headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS). E-nose analysis revealed significant differences in sulfur-containing and terpenic compounds between grades. HS-SPME-GC-MS identified 95 VOCs, with G1 exhibiting the highest diversity (75 compounds) and unique markers like 2-butanone. Orthogonal partial least squares-discriminant analysis (OPLS-DA) highlighted 86 discriminatory VOCs (VIP > 1). Odor activity value (OAV) analysis showed G1 had the strongest aroma intensity, driven by

SUBMITTER: Luo Y 

PROVIDER: S-EPMC12640044 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature