Skip to main content
Article
Fluorescence-Based Method, Exploiting Lipofuscin, for Real-Time Detection of Central Nervous System Tissues on Bovine Carcasses
Journal of Agricultural and Food Chemistry
  • Holger Schonenbrucher, National Animal Disease Center
  • Ramkrishna Adhikary, Iowa State University
  • Prasun Mukherjee, Iowa State University
  • Thomas A. Casey, United States Department of Agriculture
  • Mark A. Rasmussen, United States Department of Agriculture
  • Frank D. Maistrovich, Iowa State University
  • Amir N. Hamir, National Animal Disease Center
  • Marcus E. Kehrli, Jr., United States Department of Agriculture
  • Jurgen A. Richt, United States Department of Agriculture
  • Jacob W. Petrich, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
7-12-2008
DOI
10.1021/jf0734368
Abstract

The removal of central nervous system (CNS) tissues as part of bovine spongiform encephalopathy (BSE) risk material is one of the highest priority tasks to avoid contamination of the human food chain with BSE. No currently available method enables the real-time detection of possible CNS tissue contamination on carcasses during slaughter. The fluorescent pigment lipofuscin is a heterogeneous, high-molecular weight material that has been shown to be enriched in high concentrations in neuronal tissues. In this study, lipofuscin fluorescence was investigated as a marker for real-time detection of CNS contamination. Front-faced fluorescence spectra of brain and spinal cord samples from 11 cattle gave identical, reproducible fluorescence signal patterns with high intensities. The specificity of these spectra was assessed by investigating 13 different non-CNS tissues enabling the differentiation of brain and spinal cord by signal intensity and structure of the spectra, respectively. Small quantities of bovine spinal cord were reliably detected in the presence of raw bovine skeletal muscle, fat, and vertebrae. The presented data are a fundamental basis for the development of a prototype device allowing real-time monitoring of CNS tissue contamination on bovine carcasses and meat cuts.

Comments

Reprinted (adapted) with permission from Journal of Agricultural and Food Chemistry 56 (2008): 6220, doi: 10.1021/jf0734368. Copyright 2008 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
File Format
application/pdf
Citation Information
Holger Schonenbrucher, Ramkrishna Adhikary, Prasun Mukherjee, Thomas A. Casey, et al.. "Fluorescence-Based Method, Exploiting Lipofuscin, for Real-Time Detection of Central Nervous System Tissues on Bovine Carcasses" Journal of Agricultural and Food Chemistry Vol. 56 Iss. 15 (2008) p. 6220 - 6226
Available at: http://works.bepress.com/jacob_petrich/41/