Analysis and Investigation of Benzoic Acid in Preservative of Ginseng Extract
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.
Ginseng extract preservatives benzoic acid
Lai Shilong Li Guanghao
Inspection and Quarantine Beraeu, Dalian Development Zone, Dalian 116600, PR China College of Environmental and Resources, Dalian Nationalities University, Dalian 116600, PR China
国内会议
青岛
英文
7-12
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）