Portal de Periódicos da CAPES

Characterization of key aroma-active compounds in fermented chili pepper (Capsicum frutescens L.) using instrumental and sensory techniques

2024; Elsevier BV; Volume: 23; Linguagem: Inglês

10.1016/j.fochx.2024.101581

2590-1575

Yue Xiao, Shiyao Zhang, Xinyu Wang, Xinyi Zhao, Zhijia Liu, Chuanqi Chu, Yanfei Wang, Xiao Hu, Junjie Yi,

Essential Oils and Antimicrobial Activity

The aroma profile of fermented chili pepper was analyzed using gas chromatography–mass spectrometry (GC–MS) coupled with chromatography-olfactometry (GC-O). A total of 19 aroma-active compounds were detected, exhibiting aroma intensities spanning from 1.8 to 4.2. And 12 aroma-active compounds were determined as pivotal odorants through odor activity value (OAV) calculation. Concentrations of these aroma-active compounds were quantified and subsequently employed in reconstructing the aroma profile of fermented chili pepper. Quantitative descriptive sensory analysis and electronic nose analysis proved that the aroma profile of fermented chili pepper was basically reconstituted. Omission experiments confirmed that methyl salicylate, linalool, 2-methoxy-3-isobutylpyrazine, and phenylethyl alcohol were the key aroma-active compounds of fermented chili pepper. Moreover, the perceptual interactions between the key aroma-active compounds were investigated. It was found that methyl salicylate masked the floral aroma, while phenylethyl alcohol had an additive effect on the aroma of linalool and 2-methoxy-3-isobutylpyrazine.