RELATION OF BIOGENIC AMINES AND BACTERIAL CHANGES IN ICE-STORED SOUTHERN CASPIAN KUTUM (RUTILUS FRISII KUTUM) MASOUD REZAEI 1,5 , HOSSEIN JAFARI 1 , MOHAMMAD ALI SAHARI 1 , HEDAYAT HOSSEINI 2 , NAIM MONTAZERI 3 , MOHAMMAD PARVIZ 4 and ABDULLAH NAZARINIA 2 1 Department of Fisheries Tarbiat Modarres University Noor, PO Box 46414-356, Mazandaran, Iran 2 Section of Food Chemistry and Microbiology Food and Drug Control Laboratory Ministry of Health Tehran, Iran 3 Department of Fisheries Islamic Azad University–Lahijan Branch Lahijan, Guilan, Iran 4 Food Research Laboratory Endocrinology and Metabolism Research Center Tehran University of Medical Sciences Tehran, Iran Accepted for Publication August 31, 2006 ABSTRACT The biogenic amine (putrescine, cadaverine, histamine and tyramine) content of whole Southern Caspian Kutum (Rutilus frisii kutum) and related bacterial changes (Pseudomonas spp., psychrotrophic and mesophilic counts) were monitored during ice storage for a period of 18 days (0, 3, 6, 9, 12, 15 and 18). Levels of putrescine, cadaverine and bacterial loads increased (P < 0.05) during storage, but histamine and tyramine were not detected in any of the tested samples. Initial concentrations of putrescine and cadaverine were 0.24 and 0.07 mm/kg, and finally reached 5.27 and 4.21 mg/kg, respectively. Correlations were found between putrescine and psychrotrophs, and between cadaverine and pseudomonads. The putrescine and cadaverine content of 5 Author for correspondence. TEL: +98-122-6254986; FAX: +98-122-6253499; EMAIL: rezai_ma@ modares.ac.ir Journal of Food Biochemistry 31 (2007) 541–550. All Rights Reserved. © 2007, The Author(s) Journal compilation © 2007, Blackwell Publishing 541