alexa Prevalence of Veterinary Drug Residues and Heavy Metals
ISSN: 2157-7110

Journal of Food Processing & Technology
Open Access

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Research Article

Prevalence of Veterinary Drug Residues and Heavy Metals in Catfish Nuggets

Gulnihal Ozbay1*, Balaji Kubandra Babu1 and Guoying Chen2

1Department of Agriculture and Natural Resources, Delaware State University, 1200 North DuPont Highway, Dover, DE 1990, USA

2USDA-ARS-ERRC, 600 E. Mermaid Lane, Wyndmoor, PA, USA 19038, USA

*Corresponding Author:
Gulnihal Ozbay
Department of Agriculture and Natural Resources
Delaware State University, 1200 North DuPont Highway
Dover, DE 19901, USA
Tel: 3028576476
E-mail: [email protected]

Received Date: August 17, 2012; Accepted Date: September 28, 2012; Published Date: October 07, 2012

Citation: Ozbay G, Babu BK, Chen G (2013) Prevalence of Veterinary Drug Residues and Heavy Metals in Catfish Nuggets. J Food Process Technol S11:005. doi: 10.4172/2157-7110.S11-005

Copyright: © 2013 Ozbay G, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Seafood such as catfish can sometimes become contaminated with chemicals and heavy metals at levels which would harm human health. There has been renewed interest by the USDA Food Safety Inspection Service (FSIS) in determining the incidence and prevalence of potentially harmful contaminants in catfish products. Many studies of retail catfish have focused on the fillet portion of the fish. Catfish nuggets are the fatty belly flap of the fish which is removed during processing and are sold as a separate product. Retail catfish nuggets from domestically raised catfish were collected in New Jersey, Pennsylvania, New York and Delaware and then tested for the presence of chemical contaminants including the heavy metals arsenic, lead, mercury, and cadmium. Of the 24 nugget samples tested none tested positive for the presence of arsenic or lead. Cadmium was detected in nine samples, but the levels were well below the regulatory action levels indicated for seafood. Mercury was detected in one catfish sample, but again the concentration was well below the U.S. FDA action limit for methyl mercury in fish. In addition, the presence of veterinary drug residues including malachite green, gentian violet and chloramphenicol in domestic catfish nuggets was also determined. One sample tested positive for the presence of gentian violet, however, given the low level detected (1.1 ppb) it is theorized to have occurred due to post-process contamination.

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