Journal
FOOD RESEARCH INTERNATIONAL
Volume 106, Issue -, Pages 992-998Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2018.01.047
Keywords
Low temperature air-drying; Banana flavour; Selective diffusion; Flavour retention; Headspace GC-MS
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Funding
- University of New South Wales
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Headspace gas chromatography mass spectrometry (HS-GC-MS) was used to measure changes in selected volatile flavour compounds in fresh banana during low temperature heat pump drying. Ten compounds from a range of chemical classes were measured during drying at three different drying conditions. Ester compounds were found to be the most affected, with losses varying from 25 to 87% during drying. Three patterns of depletion were observed in this study. Ester and aldehyde levels reduced quickly during the early stages of drying, but levels stabilised at non-zero values towards the end of drying; alcohol levels initially increased, then decreased and stabilised; whilst high molecular weight compounds, such as elemicine and eugenol, were not affected significantly. Selective diffusion and volatility affected the degree of flavour retention.
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