不同冷冻贮藏时间对三种鱼类肌肉中孔雀石绿残留量的影响

摘要

Study of carp ,eel ,mandarin fish residues of malachite green in the effects of malachite green standard samples with different concentrations and at different frozen storage time .Three kinds of matrix ,eel tissues are added in the carp leucomalachite green degradation rate is the slowest ,manda-rin fish ,three times faster ,matrix added with 10 μg/kg ,50 μg/kg ,100 μg/kg ,colored malachite green average degradation rate were 57 .9% ,48% ,23% leucomalachite green average degradation rate were 46 .6% ,43 .4% ,19 .8% ,colored malachite green is colorless malachite green fast degradation of low concentration ,high concentration fast degradation .In three kinds of matrix carp ,eel ,mandarin fish tissues colored and colorless malachite green degradation reaction are in line with the pseudo first order reaction kinetics .Analysis may be due to eel tissue more fat ,the binding mode of the degrada-tion of colored leucomalachite green .%研究鲤鱼、鳗鲡、鳜鱼在加入不同浓度的孔雀石绿标准样品且在不同冷冻贮藏时间下对孔雀石绿残留量的影响。三种基质中，鳗鲡组织中添加有无色孔雀石绿降解速率最慢、鳜鱼次之、鲤鱼较快。三种基质中添加10μg／kg、50μg／kg、100μg／kg有色孔雀石绿平均降解率分别为57．9％、48．0％、23．0％；无色孔雀石绿平均降解率分别为46．6％、43．4％、19．8％，有色孔雀石绿较无色孔雀石绿降解快，低浓度较高浓度降解快。在三种基质鲤鱼、鳗鲡、鳜鱼组织中有色和无色孔雀石绿降解反应均符合准一级反应动力学。分析可能由于鳗鲡组织脂肪较多，其结合方式影响了有色无色孔雀石绿的降解。