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Updated: Jan 7, 2026

Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
Comprehensive flavor characterization and fingerprint construction of fermented pepper
Yuan Liu1, Peiquan Yang2, Biqing He3
1College of Horticulture, Hunan Agricultural University, Changsha, Hunan 410128, PR China.
None:
Fermented pepper exhibits complex and diverse flavor profiles, yet traditional fermentation often leads to unstable flavor quality. In this study, electronic nose (E-nose), electronic tongue (E-tongue), high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) were applied to comprehensively analyze the flavor characteristics of fermented peppers from different regions. Results showed that a total of 24 free amino acids, 6 organic acids, and 59 volatile compounds were identified. OPLS-DA analysis effectively separated high-quality fermented pepper samples from all samples, showing good agreement with sensory evaluation results. Furthermore, characteristic flavor fingerprints with high similarity (> 0.95) were successfully established, providing a scientific basis and technical parameters for the evaluation and regulation of fermented pepper flavor quality.
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