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Detection of benzoic and sorbic acids in Petit Suisse cheese


, : Detection of benzoic and sorbic acids in Petit Suisse cheese. Technique Laitiere (867): 11

The free acids extracted from Petit Suisse cheese yielded on fractionation by TLC a spot whose Rf value lay below that of the normal fatty acids and corresponded approximately to one observed in similar extracts of Munster and Livarot cheeses and ascribed to presence of aromatic acids. Patterns obtained by GLC of the methyl esters of the free acids yielded 2 unknown peaks identified by MS as methyl sorbate and methyl benzoate.

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