ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Fluorescence techniques have demonstrated great potential for detection of the presenceof fecal and other biological substances that can harbor pathogens. We used a recently developedlaser-induced fluorescence imaging system (LIFIS) to demonstrate the potential use of fluorescencetechniques for detection of a range of diluted poultry feces from various sections of the digestivetract, including gizzard, duodenum, small intestine, ceca, and colon, on processing plant equipment.The use of the LIFIS allowed tunable excitation in the visible with selection of emission wavebandsfor multispectral imaging. Thus, both fluorescence excitation and emission parameters can beoptimized (e.g., 415 nm excitation, and 580 and 630 nm emission bands). The results showed that1:5 and 1:10 diluted feces samples could be detected with 100% detection rates at the 580 and 630nm emission bands regardless of feces types. Detection rates for 1:50 and 1:100 diluted samples atthe 580-nm band were 96.0 and 89.3%, respectively, and those at the 630-nm band were 94.7 and84.0%, respectively. Even minute amounts of fecal matter on processing plant equipment surfaces,not clearly visible to the human eye, could be detected
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.321-323.1157.pdf
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