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GC-MASS Analysis and Microbial Enumeration for the Identification of Spoiled Red Pepper Powder  

Jeong, Su-Jin (Division of Biological Sciences, Chonbuk National University)
Han, Sang-Bae (Food & Risk Standardization Team, Korea Food & Drug Administration)
Uhm, Tai-Boong (Division of Biological Sciences, Chonbuk National University)
Publication Information
Journal of Food Hygiene and Safety / v.23, no.3, 2008 , pp. 191-197 More about this Journal
Abstract
This work was intended for the identification of markers that are found only in the spoiled red pepper powder. When analyzed by GC/MASS, the spoiled red pepper powder contains characteristic naphthalene derivatives, 1, 2, 3, 5, 6, 7, 8, $8\alpha$-octahydro-1, $8\alpha$-dimethyl-7-(1-methylethenyl)-naphthalene and 2-isopropenyl-$4\alpha$, 8-dimethyl-1, 2, 3, 4, $4\alpha$, 5, 6, $8\alpha$-octahydronaphthalene, which have not found in the normal red pepper powder. In addition, microscopic observation and microbial enumeration of the red pepper powder had been performed. Images by scanning electron microscopy showed that the surfaces of spoiled pepper powder were rough with many kinds of microbes, compared with those of normal red pepper powder. A good correlation between the bacterial and fungal counts in the same sample was observed and could be clearly classified into two groups, the normal and the spoiled group, by difference in the microbial counts. These results suggest that the spoiled red pepper powder can be identified by a combination of GC/MASS, microbial counts, and scanning electron microscopy.
Keywords
bacteria; food safety; fungi; naphthalene; red pepper powder;
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1 식품위해기준팀: 식품의 기준 및 규격(개정현행고시 2008-6호), 식품의약품안전청, 서울, pp. 174-177 (2008)
2 Ko, H.J., Choi, J.H., Kim, D.S., Yoo, Y.J., Kyung, K.H.: Mycology of red pepper fruits discolored due to mold growth during sun-drying, Food Sci. Biotechnol. 13, 627-631 (2004)
3 Yamamoto, N., Matsumoto, T., Ishibashi, Y.: Fungal keratitis caused by Colletotrichum gloeosporioides. Cornea, 20, 902-903 (2001)   DOI   ScienceOn
4 Perfect S.E., Hughes, H.B., O'Connel, R.J., Green, J.R.: Colletotrichum: A model genus for studies on pathology and fungal-plant interactions. Fungal Genet. Biol., 27, 186-198 (1999)   DOI   ScienceOn
5 Freeman, S., Katan, T., Shabi, E.: Characterization of Colletotrichum gloeosporioides isolates from abocado and almond fruits with molecular and pathogenicity tests. Appl. Environ. Microbiol., 62, 1014-1020 (1996)
6 Cano, J., Guarro, J., Gene, J.: Molecular and morphological identification of Colletotrichum species of clinical interest. J. Clin. Microbiol., 42, 2450-2454 (2004)   DOI   ScienceOn