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Updated: Jan 17, 2026

Fruit Volatile Analysis Using an Electronic Nose
Published on: March 30, 2012
Aroma metabolic remodeling during yellow peach canning: Key aroma-active compounds, precursor conversion, and
Ying Xu1, Donghao Zhang2, Wenjiang Dong3
1College of Food Science and Nutritional Engineering, China Agricultural University (CAU), Beijing 100083, PR China.
Abstract:
Canning substantially alters fruit aroma, yet the integrated dynamics of these changes remain unelucidated. This study employed comprehensive two-dimensional gas chromatography-olfactometry-time of flight mass spectrometry (GC × GC-O-TOF MS), sensory analysis, and multi-omics to elucidate the dynamic evolution of 31 key aroma-active compounds (odor activity value, OAV ≥ 1) and their precursors during yellow peach canning. Partial least squares-discriminant analysis (PLS-DA, R2 > 0.65, Q2 > 0.46) validated 41 discriminative metabolites (variable importance in projection, VIP > 1), while Spearman correlations (|r| > 0.5, p < 0.05) highlighted linolenic acid, linoleic acid, leucine, phenylalanine, and fructose as pivotal precursors. Thermal processing shifted aroma generation from enzymatic to non-enzymatic pathways, producing "roasted, fruity" notes via Maillard reactions, lipid and carotenoid degradation. Supplemental sucrose enhanced aroma complexity by derivatizing substrates and modulating viscosity/moisture activity. This work establishes a detailed aroma-metabolic map for canned yellow peaches, providing insights to support quality control in fruit processing.
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