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| Study on soybean structure and differences of regions in north china |
| Feng Yinyin1, Gao Jiali1 , Li Li1, Lu Wenjing1, Li Jiaxin1, Meng Lu1, Sha Shuli2, Xiao Xiao1 |
| 1. College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China; 2. Hebei Westin
Testing Technology Service Corporation Ltd., Shijiazhuang 050000, China |
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Abstract The quality of soybean from different producing areas is different, but there is no report on the related structure difference. The structure of soybean were studied by middle infrared (abbreviation: MIR) spectroscopy. There were ν■, ν■, ν■, νamide-Ⅰ-soybean, νamide-Ⅱ-soybean, νC=O-soybean and νC-O-soybean. The resolution of the second derivative MIR spectroscopy of soybean is better than the corresponding one-dimensional MIR spectroscopy, the fourth derivative MIR spectroscopy and the deconvolution MIR spectroscopy . MIR spectroscopy could be used to distinguish soybean structure differences. The paper demonstrated the key roles of MIR spectroscopy in study of structure differences of soybean.
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