Study on Identification of Bacillus cereus in Milk Based on Two-Dimensional Correlation Infrared Spectroscopy

Abstract : Bacillus cereus is a kind of common food-borne pathogen that can cause vomiting and diarrhea shortly after ingestion. The spectroscopy properties of Bacillus cereus were measured using the infrared reflectance spectroscopy, which was a nondestructive technology. The influence of Bacillus cereus concentration on the spectroscopy was explored based on the two-dimensional (2D) correlation spectroscopy method. The results showed that some functional groups of capsule in pure Bacillus cereus culture, such as carboxyl, protein amide I and amide II, C-H methyl and methylene could induced some self-correlation peaks near 1592 cm−1, 1652 cm−1, 1512 cm−1 and 1412 cm−1 respectively. Some functional groups of spore, such as COO- group and C-H bond could induced some self-correlation peaks near 1348 cm−1, 1616 cm−1 and 1592 cm−1 respectively. In milk sample, the functional groups of capsule and spore could induced some self-correlation peaks too. The infrared spectroscopy combined with 2D correlation spectroscopy analysis method could be a effective method for the Bacillus cereus detection.
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9th International Conference on Computer and Computing Technologies in Agriculture (CCTA), Sep 2015, Beijing, China. IFIP Advances in Information and Communication Technology, AICT-479 (Part II), pp.514-521, 2016, Computer and Computing Technologies in Agriculture IX. 〈10.1007/978-3-319-48354-2_52〉
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Zizhu Zhao, Ruokui Chang, Yong Wei, Yuanhong Wang, Haiyun Wu. Study on Identification of Bacillus cereus in Milk Based on Two-Dimensional Correlation Infrared Spectroscopy. 9th International Conference on Computer and Computing Technologies in Agriculture (CCTA), Sep 2015, Beijing, China. IFIP Advances in Information and Communication Technology, AICT-479 (Part II), pp.514-521, 2016, Computer and Computing Technologies in Agriculture IX. 〈10.1007/978-3-319-48354-2_52〉. 〈hal-01614205〉

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