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Title: Production of dairy-based, natural sulphur flavor concentrate by yeast fermentation
Authors: Liu, S.-Q. 
Crow, V.L.
Keywords: Dairy
Sulphur flavor
Issue Date: Jan-2010
Citation: Liu, S.-Q., Crow, V.L. (2010-01). Production of dairy-based, natural sulphur flavor concentrate by yeast fermentation. Food Biotechnology 24 (1) : 62-77. ScholarBank@NUS Repository.
Abstract: Production of sulphur flavor concentrate by yeast fermentation was investigated using dairy media (milk and cream) spiked with L-methionine. The yeasts studied included so-called dairy yeasts Candida kefyr, Kluyveromyces marxianus, Debaryomyces hansenii, Geotrichum candidum, and Yarrowia lipolytica as well as wine yeasts Saccharomyces cerevisiae and Saccharomyces bayanus. Methionol was produced as the predominant volatile sulphur flavor compound. Other volatile sulphur flavor compounds produced were dimethyl disulphide, S-methyl thioacetate, 3-methylthio-1-propanoic acid, methional, 3-methylthio-1-propene, and ethyl 3-methylthio-1-propanoate. In addition, numerous other volatile flavor compounds were produced, including ethanol, branched-chain alcohols, aromatic alcohol, ethyl esters, branched-chain esters, branched-chain fatty acids, and branched-chain aldehydes. The sensory attribute of a methionol sulphur flavor concentrate in cream is concentration-dependent, ranging from a savory-slight potato note to a strong potato-savory note to a cooked cheesepotato note. © Taylor & Francis Group, LLC.
Source Title: Food Biotechnology
ISSN: 08905436
DOI: 10.1080/08905430903562724
Appears in Collections:Staff Publications

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