Journal
FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE
Volume 8, Issue 2, Pages 142-148Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19393210.2015.1021862
Keywords
food; cheese; sodium benzoate; potassium sorbate; HPLC
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A high-performance liquid chromatography method was applied for the determination of the levels of benzoate and sorbate in 400 food samples, including pickled cucumbers, canned tomato pastes, sour cherry jams, soft drinks, fruit juices and dairy products (UF-Feta cheeses, Lighvan cheeses, lactic cheeses, yogurts and doogh). The results showed that 270 (67.5%) of all samples contained benzoate ranging from 11.9 to 288.5mgkg(-1) in lactic cheese and fruit juice, respectively. The levels of sorbate in 98 (24.5%) of the samples were 20.1 to 284.3mgkg(-1) in doogh and fruit juice, respectively. Moreover, benzoate was detected in all dairy products ranging from 11.9mgkg(-1) in lactic cheese to 91.2mgkg(-1) in UF-Feta cheese. A low concentration of benzoate could originate naturally, due to specific biochemical mechanisms during cheese, yogurt and doogh maturation. In conclusion, a minimum level for benzoate in dairy products should be defined in the legislation.
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