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|Title:||Evolution of volatile compounds in papaya wine fermented with three Williopsis saturnus yeasts|
|Citation:||Lee, P.-R., Ong, Y.-L., Yu, B., Curran, P., Liu, S.-Q. (2010-10). Evolution of volatile compounds in papaya wine fermented with three Williopsis saturnus yeasts. International Journal of Food Science and Technology 45 (10) : 2032-2041. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1365-2621.2010.02369.x|
|Abstract:||The changes in volatile compounds during papaya juice fermentation with three Williopsis saturnus yeasts were investigated in this study. Time-course papaya juice fermentations were carried out using three Williopsis saturnus yeasts: W. saturnus var. mrakii NCYC2251, W. saturnus var. saturnus NCYC22 and W. saturnus var. sargentensis NCYC2727. Changes in yeast cell population, Brix and pH were similar among the three yeasts, which preferentially utilised glucose over fructose while partially degrading l-malic acid. A range of volatile compounds were produced during fermentation including fatty acids, alcohols and esters with esters being the most abundant volatile compounds produced. Benzyl isothiocyanate, butyric acid, 2-ethylhexanol, benzaldehyde and β-damascenone present in the papaya juice were metabolised to trace levels during fermentation. There were significant variations among the three yeasts in their ability to produce and metabolise volatile compounds during fermentation. The study suggests that papaya juice fermentation with W. saturnus yeasts is able to result in the formation of a more complex aroma compounds. © 2010 The Authors. International Journal of Food Science and Technology © 2010 Institute of Food Science and Technology.|
|Source Title:||International Journal of Food Science and Technology|
|Appears in Collections:||Staff Publications|
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