Effect of processing and accelerated storage on the volatile composition and sensory profile of a tomato soup

Research output: Contribution to journalJournal articleResearchpeer-review


  • Fulltext

    Final published version, 1.22 MB, PDF document

The volatile and sensory profile of pasteurized (95 degrees C, 18 min) and sterilized (120 degrees C, 14 min) tomato soup and its changes at accelerated storage conditions (37 degrees C and 42 degrees C) were identified, characterized, and correlated by predictive models. Sterilization led to more profound changes over storage compared to pasteurisation, showing enhanced levels of 'dark' odour, 'burnt' flavour, and 'complexity', while pasteurized soup had more pronounced 'green' odour, 'vegetables' flavour, 'harmony', and 'freshness'. Over time, 'dark' and 'burnt' significantly increased for sterilized soups, whereas 'green' decreased significantly only for sterilized soup stored at 42 degrees C. The changes of 'dark', 'green', 'off-flavour', 'burnt', 'harmony', and 'freshness' were associated with formation of furans (furfural and 2-acetyl-5-methylfuran), and decline of unsaturated aldehydes like E-2-octenal and E,E-2,4-heptadienal. These compounds were identified to represent potential shelf-life markers, yet more studies on their odour activity in the tomato soup matrix are necessary to understand their contribution to the sensory quality. The construction of partial least squares models allowed the prediction of 'green', 'off-flavour', 'burnt', and 'freshness' based on selected volatiles. These models will be important tools in the process of predicting the end of shelf life, but need to be supplemented with consumer acceptability levels.

Original languageEnglish
Article number024
JournalFood Quality and Safety
Number of pages12
Publication statusPublished - 2022

    Research areas

  • Volatile composition, sensory profile, accelerated storage, tomato soup, shelf life, prediction, partial least dquares regression, FLAVOR COMPOUNDS, CHERRY TOMATO, QUALITY, PRODUCTS, FURAN

Number of downloads are based on statistics from Google Scholar and www.ku.dk

No data available

ID: 312404281