Post mortem variation in Total Volatile Base Nitrogen and Trimethylamine Nitrogen between Galda ( Macrobrachium rosenbergii ) and Bagda ( Penaeus monodon )

University Journal of Zoology, Rajshahi University Pub Date : 2010-06-16 DOI:10.3329/UJZRU.V28I0.5278

M. Y. Ali, Iqbal Sharif, Ripon K Adhikari, O. Faruque

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引用次数: 33

Abstract

Total Volatile Base Nitrgen (TVB-N) and Trimethylamine Nitrogen (TMA-N) of Galda ( Macrobrachium rosenbergii ) and Bagda ( Penaeus monodon ) at ambient temperature was compared at Fish Quality Control Laboratory of Fisheries and Marine Resource Technology Discipline, Khulna University, Bangladesh. The TVB-N and TMA-N were determined by using Conway's Micro-diffusion Technique. The nature of biochemical changes was studied up to complete spoilage. The TVB-N contents of Galda and Bagda ranged between 6.65±0.12 mg- N/100g to 8475±0.22 mg-N/100g and 6.72±0.18 mg-N/100g to 91.43±0.49 mg-N/100g. The TMA-N contents of Galda and Bagda ranged between 6.64±0.12 mg-N/100g to 39.38±0.33 mg-N/100g and 6.81±0.17 mg-N/100g to 71.41±0.35 mg-N/100g. A slight higher amount of TVB-N was observed at all stages in Galda as compared to Bagda. TMA-N contents significantly varied between Galda and Bagda (P≤0.05). At all stages of spoilage Bagda showed higher amount of TMA-N. Keywords: Post mortem; TVB-N; TMA-N; Galda and Bagda. DOI: 10.3329/ujzru.v28i0.5278 Univ. j. zool. Rajshahi. Univ. Vol. 28, 2010 pp. 07-10

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罗氏沼虾(Galda)和单对虾(Bagda)死后总挥发性碱氮和三甲胺氮的差异

在孟加拉国库尔纳大学渔业和海洋资源技术学科鱼类质量控制实验室，比较了罗氏沼虾Galda和单对虾Bagda在环境温度下的总挥发性碱氮(TVB-N)和三甲胺氮(TMA-N)。采用Conway微扩散法测定TVB-N和TMA-N。研究了生化变化的性质，直至完全变质。Galda和Bagda的TVB-N含量分别为6.65±0.12 mg-N/100g ~ 8475±0.22 mg-N/100g和6.72±0.18 mg-N/100g ~ 91.43±0.49 mg-N/100g。Galda和Bagda的TMA-N含量分别为6.64±0.12 mg-N/100g ~ 39.38±0.33 mg-N/100g和6.81±0.17 mg-N/100g ~ 71.41±0.35 mg-N/100g。与Bagda相比，在加尔达的所有阶段观察到的TVB-N含量略高。甘达达和巴格达的TMA-N含量差异显著(P≤0.05)。在腐坏的各个阶段，Bagda都表现出较高的TMA-N含量。关键词:尸体解剖;TVB-N;TMA-N;盖尔达和巴格达。DOI: 10.3329/ujzru.v28i0.5278 Univ. j. zool。Rajshahi。大学Vol. 28, 2010 pp. 07-10

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University Journal of Zoology, Rajshahi University

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