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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (3): 383-390.

所属专题： 水产渔业

• 水产 渔业 • 上一篇    下一篇

鲜活水产品中甲醛本底含量状况调查

段文佳 周德庆 张瑞玲   

  • 收稿日期:2010-12-17 修回日期:2011-01-06 出版日期:2011-02-05 发布日期:2011-02-05
  • 基金资助:

    质检公益性行业科研专项

Investigation of Background Concentration of Formaldehyde in Fresh Fishery Products

  • Received:2010-12-17 Revised:2011-01-06 Online:2011-02-05 Published:2011-02-05

PDF (PC)

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摘要：

运用乙酰丙酮分光光度法法，先后对12种314个淡水鱼类样品、19种356个海水鱼类样品、9种147个虾蟹类样品、5种137个贝类样品和4种59个头足类样品共计1013个鲜活水产样品中本底甲醛含量进行了测定。研究结果表明，鲜活水产品中甲醛含量中位值为0.25mg/kg，平均值为6.31mg/kg，中位值远低于平均值，因而多数水产品中甲醛的本底含量处于低端水平。在调查的49个水产品样品种类中，龙头鱼、鳕、中国枪乌贼、口虾蛄、梭子蟹等种类甲醛本底含量较高，另外淡水鱼类样品中的罗非鱼甲醛含量要显著高于其它种类的淡水鱼类（p<0.05）。不同类型的水产品之间甲醛含量也存在一定差异（p<0.05），具体表现为海水鱼类样品中甲醛含量最高，其次为头足类样品、甲壳类样品和贝类样品，淡水鱼类样品中甲醛含量最低 。

关键词: 生物农药, 生物农药

Abstract:

The concentration of formaldehyde in 1013 fishery product samples, which including 314 samples of 12 species of freshwater fishes, 356 samples of 19 species of marine fishes, 147 samples of 9 species of crustaceans, 137 samples of 5 species of shellfish and 59 samples of 4 species of cephalopods, were determined by acetylacetone spectrophotometric method. The results showed that the median of formaldehyde content in fresh fishery products is 0.25 mg/kg, which was far below the average concerntration (6.31 mg/kg), indicating that most samples have low formaldehyde contentration. In the survey of 49 species, bombay duck（Hacpodon neheceus）, cod（Cadous macrocephalus, Theragra chalcogramma and Miciomesistius poutassou）, squid (Loligo chinensis), squill (Oratosquilla) and swimming crab (Portunus trituberculatus and Portunus pelagicus) had higher levels of formaldehyde in the background. While formaldehyde content in tilapia seemed to be significantly higher than other freshwater fish species (p<0.05). Significant differences on types showed that the formaldehyde conerntration in marine fish samples were great, followed by samples of cephalopods, crustaceans and shellfish, however, samples of freshwater fish was in the lowest formaldehyde content (p<0.05).