ZHAO Donghao, LI Zhiguang, YANG Jinlan, CHEN Yuxin, CHEN Peiji, LI Liudong. A method for determination of acid value in aquatic products[J]. South China Fisheries Science, 2009, 5(5): 72-74. DOI: 10.3969/j.issn.1673-2227.2009.05.013
Citation: ZHAO Donghao, LI Zhiguang, YANG Jinlan, CHEN Yuxin, CHEN Peiji, LI Liudong. A method for determination of acid value in aquatic products[J]. South China Fisheries Science, 2009, 5(5): 72-74. DOI: 10.3969/j.issn.1673-2227.2009.05.013
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A method for determination of acid value in aquatic products

    Abstract
  • A reliable analytical method based on volumetry was developed for the determination of acid value in aquatic products. Samples were extracted with mixed solvent including diethylether and ethanol; thenthey weretitrated with potassium hydroxide. The titration end point was indicated by dihydroxyphthalophenone. The recovery was calculated based on potassium hydroxide consumed in titration. The average recoveries at the levels of 0.100 g and 0.200 g were 94.3% and 96.1%; RSDs were 3.53% and 4.01% (n=6), respectively.
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