| Detection of foreign bodies in foods using continuous wave terahertz imaging. | |
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MedLine Citation:
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PMID: 22221375 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Foreign bodies (FBs) in food are health hazards and quality issues for many food manufacturers and enforcement authorities. In this study, continuous wave (CW) terahertz (THz) imaging at 0.2 THz with an output power of 10 mW was compared with X-ray imaging as techniques for inspection of food for FBs. High-density FBs, i.e., aluminum and granite pieces of various sizes, were embedded in a powdered instant noodle product and detected using THz and X-ray imaging. All aluminum and granite pieces (regular hexahedrons with an edge length of 1 to 5 mm) were visualized by both CW THz and X-ray imaging. THz imaging also detected maggots (length = 8 to 22 mm) and crickets (length = 35 and 50 mm), which were embedded in samples as low density FBs. However, not all sizes of maggot pieces embedded in powdered instant noodle were detected with X-ray imaging, although larger crickets (length = 50 mm and thickness = 10 mm) were detected. These results suggest that CW THz imaging has potential for detecting both high-density and low-density FBs embedded in food. |
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Authors:
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Young-Ki Lee; Sung-Wook Choi; Seong-Tae Han; Deog Hyun Woo; Hyang Sook Chun |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of food protection Volume: 75 ISSN: 1944-9097 ISO Abbreviation: J. Food Prot. Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-01-06 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703944 Medline TA: J Food Prot Country: United States |
Other Details:
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Languages: eng Pagination: 179-83 Citation Subset: IM |
Affiliation:
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Food Safety Research Center, Korea Food Research Institute, Backhyun 516, Sungnam, Gyeonggi-do 463-746, Republic of Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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