首页|Differential sensitivity to thermal processing of two muskmelon cultivars with contrasting differences in aroma profile

Differential sensitivity to thermal processing of two muskmelon cultivars with contrasting differences in aroma profile

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The muskmelon aroma is delicate, but unacceptable off-notes can be formed during thermal processing, impeding the muskmelon industrial applicability. To investigate cultivar differences in the thermal sensitivity of their aroma, heat-induced aroma alterations of muskmelon cultivars with different aroma profiles and post-harvest physiologies were comparatively studied using qualitative descriptive analysis, headspace-gas chromatography-ion mobility spectrometry, and a gas chromatography-olfactometry/modified frequency (MF) method. Higher intensities of "fermented" and "sulfurous" off-notes were observed in a non-climacteric Queen muskmelon (QM) compared to a climacteric Xizhoumi No. 25 muskmelon (XM). The number and MF values of odorants in QM and XM increased after heating. However, less agreeable odors and more off-flavors with higher MF values were identified in heated QM compared to XM. Both sensory and instrumental analysis revealed different thermal sensitivities between the muskmelon cultivars, which indicated that XM was better at retaining its original aroma and inhibiting the development of off-odors. This study provides theoretical guidance for muskmelon resource utilization and also promotes the muskmelon deep-processing products and growth in the muskmelon market.

Muskmelon (Cucumis melo L.)Thermal sensitivityOff odorHeadspace gas chromatography-ion mobility spectrometry (HS-GC-IMS)Gas chromatogram-olfactometry (GC-O)

Yu, Weisong、Zhang, Yizhi、Lin, Yingnan、Pang, Xueli、Zhao, Liqiang、Wu, Jihong

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Chinese Acad Agr Sci, Tobacco Res Inst, Sci Lab Tobacco & Aromat Plants Qual & Safety Ris, Minist Agr & Rural Affairs, Qingdao 266101, Peoples R China

Shandong Hanon Sci Instruments Co Ltd, Dezhou 251500, Peoples R China

China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

2021

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN:0023-6438
年,卷(期):2021.138
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