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|Title:||Inhibition of spoilage yeasts in cheese by killer yeast Williopsis saturnus var. saturnus|
|Authors:||Liu, S.-Q. |
|Citation:||Liu, S.-Q., Tsao, M. (2009-05-31). Inhibition of spoilage yeasts in cheese by killer yeast Williopsis saturnus var. saturnus. International Journal of Food Microbiology 131 (2-3) : 280-282. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijfoodmicro.2009.03.009|
|Abstract:||Williopsis saturnus var. saturnus is a known killer toxin-producing yeast. The effects of this yeast as a biopreservative against spoilage yeasts (galactose fermenting) were investigated in cheeses made under laboratory conditions. At an inoculation level of ∼ 106 CFU/g of cheese, this killer yeast inhibited growth of lactose non-fermenting but galactose-fermenting yeast Saccharomyces cerevisiae VL1 inoculated at ∼ 103 CFU/g; it also inhibited growth of lactose-fermenting and galactose-fermenting yeast Kluvyveromyces marxianus ATCC8640 inoculated at ∼ 103-104 CFU/g in the cheeses manufactured with galactose-producing starter culture Streptococcus thermophilus. In contrast, the two spoilage yeasts grew to ∼ 106 CFU/g from the initial cell count of ∼ 103 CFU/g without the killer yeast. This study indicated that W. saturnus var. saturnus could be an effective biopreservative for cheese spoilage control. © 2009 Elsevier B.V. All rights reserved.|
|Source Title:||International Journal of Food Microbiology|
|Appears in Collections:||Staff Publications|
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