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A rapid dipstick test for histamine in tuna

 

作者: M. Hall,   D. B. Eldridge,   R. D. Saunders,   D. L. Fairclough,   R. C. Bateman,  

 

期刊: Food Biotechnology  (Taylor Available online 1995)
卷期: Volume 9, issue 1-2  

页码: 39-57

 

ISSN:0890-5436

 

年代: 1995

 

DOI:10.1080/08905439509549884

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

This study describes the production of a solid phase assay (dipstick test) for histamine in tuna based on the coupling of diamine oxidase to a peroxidase/dye system. The optimized dipstick preparation consisted of a diamine oxidase/peroxidase/Stabilcoat mixture layered onto a tetramethylbenzidine color strip. The assay was linear to 1.0 mM histamine (RSQ = 0.994) and the minimum detectable concentration was 0.07 mM corresponding to 2.3 mg% in tuna extracts. Quality control samples gave intra and interassay precisions of 9.14–9.84 %CV and 7.08–13.86 %CV respectively. Similarly, the assay was accurate (p> 0.05) for both low and high controls. Histidine and cadaverine did not interfere with the assay whereas putrescine reacted slightly with the dipstick. Histamine determinations of fresh and spoiled tuna gave good agreement between the dipstick method and both the official reference and modified AOAC flurometric methods.

 

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