Detoxification of aflatoxins on prospective approach: effect on structural, mechanical, and optical properties under pressures
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Abstract
Aflatoxins are sequential of derivatives of coumarin and dihydrofuran with similar chemical structures and well-known carcinogenic agent. Many studies performed to detoxify aflatoxins, but the result is not ideal. Therefore, we studied structural, infrared spectrum, mechanical, and optical properties of these compounds in the aim of perspective physics. Mulliken charge distributions and infrared spectral analysis performed to understand the structural difference between the basic types of aflatoxins. In addition, the effect of pressure, different polarized, and incident directions on their structural changes was determined. It is found that AFB1 is most stable structure among four basic types aflatoxins (AFB1, AFB2, AFG1, and AFG2), and IR spectra are analyzed to exhibit the difference on structures of them. The mechanical properties of AFB1 indicate that the structure of this toxin can be easily changed by pressure. The real \(\left( {{\varepsilon _1}(\omega )} \right)\) and imaginary \(\left( {{\varepsilon _2}(\omega )} \right)\) parts of the dielectric function, and the absorption coefficient \(\alpha (\omega )\) and energy loss spectrum \(L(\omega )\) were also obtained under different polarized and incident directions. Furthermore, biological experiments needed to support the toxic level of AFB1 using optical technologies.
Keywords
Aflatoxins Mulliken charge distributions Infrared spectrums Mechanical properties Optical propertiesNotes
Acknowledgements
The authors would like to thank the support by Special Program of Theoretical physics of National Natural Science Foundation of China under Grant nos. 11647124, 11647030 and 1404094, the Doctoral Fund of Henan University of Technology under Grant no. 2016BS006, the Science and Technology Foundation of Henan province education department under Grant nos. 16A140006 and 17A140016, the Fundamental Research Funds for the Henan Provincial Colleges, and University of Technology under Grant nos. 2016QNJH12 and 2016JJSB091. We also thank the support by the research fund of Sichuan University of Science and Engineering under Grant nos. 2015RC41 and J2015RC44, the Education Department of Sichuan Province under Grant no. 17ZA0278, as well as the China Postdoctoral Science Foundation funded project under Grant no. 2017M623310XB.
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