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KMID : 0881720170320010057
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Journal of Food Hygiene and Safety
2017 Volume.32 No. 1 p.57 ~ p.63
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A Study on the Identification of Animal Hair in Food
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Lee Jae-Hwang
Park Young-Eun
Lim Byung-Chul
Kim Ju-Shin
Choi Jong-Hyun
Kang Tae-Sun
Lee Jin-Ha
Kwon Ki-Sung
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Abstract
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Foreign materials with a variety of types and sizes are found in food; thus, extraordinary efforts and various analytical methods are required to identify the types of foreign materials and to find out accurate causes of how they unintentionally enter food. In this study, human, cow, pig, mouse, duck, goose, dog, and cat were chosen as various types of animal hairs because they can be frequently incorporated into food during its production or consumption step. We morphologically analyzed them using stereoscopic, optical, SUMP method, and scanning electron microscopes, showing differences in each type. In addition, X-ray fluorescence spectrometer (XRF) was used to analysis chemical compositions (11Na~92U, Mass%) of samples. As a result, we observed that mammalian hairs were mainly composed of sulfur. Organic compounds of samples were further analyzed by fourier transform infrared spectroscopy (FT-IR) that can compare spectra of given materials; however, this method did not show significant differences in each sample. In this study, we suggest a rapid method for the identification of the causes and types of foreign materials in food.
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KEYWORD
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food , foreign material , animal hair
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