【摘 要】
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Preservative overdose in food has been more and more serious, which results in the reduced safety in food and brought bad effect to human health. As such, extensive concern about food safety was trigg
【机 构】
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Inspection and Quarantine Beraeu, Dalian Development Zone, Dalian 116600, PR China
【出 处】
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2011食品安全技术与标准国际研讨会暨AOAC中国区年会
论文部分内容阅读
Preservative overdose in food has been more and more serious, which results in the reduced safety in food and brought bad effect to human health. As such, extensive concern about food safety was triggered. Hence, the development of reliable, rapid and sensitive preservative inspection technology is significant to ensure human health. In the paper, based on the situations nowadays, with the common preservative-benzoic acid as the inspection object and ginseng extract/ginseng beard as raw material, the content of benzoic was detected rapidly by means of solid phase extraction-HPLC. The process mainly include the optimization of liquid chromatography conditions and solid phase extraction(SPE) technology of sub-sample pre-treatment. The effect to recovery of different extraction solvent, solid phase extraction filler and eluent were analyzed. The optimal chromatographical conditions to detect benzoic in ginseng extract and ginseng beard were confirmed. The analytical method of solid phase extraction-HPLC to detect benzoic acid in ginseng extract and ginseng beard was investigated. The separation and inspection time is 8.5min, and good separation effect of benzoic acid was obtained. The linear relationship was satisfying with the correlation coefficient≥0.9994, which meets the requirement of the inspection of benzoic acid content in ginseng extract and ginseng beard.
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