The study of the response of polymer-based gas sensor for volatile detection in rice
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Abstract
The objective of this research was to investigate the response of polymer-based gas sensor for volatile detection in rice. A sensor was fabricated from composite materials between multi-walled carbon nanotubes
and poly (2-acrylamido-2-methyl-1-propanesulfonic acid-co-acrylonitrile) (MWCNT/PAMPA-co-A) based on screen printing technique. This experiment was divided into 2 parts: (1) to study on the electrical responses of the fabricated sensor when exposed to rice vapors in the dynamic system of an electronic nose and (2) to study on molecular interactions between PAMPA-co-A and rice aroma compounds such as 2-acetyl-1-pyrroline (2-AP) and hexanal using molecular simulation. The results showed that the sensor was significantly more responsive to jasmine rice than white rice aroma. This may imply that the jasmine rice contains larger amount of total volatile compounds than the white rice. The results based on theoretical study using molecular dynamics simulation (MD) and radial distribution function (RDF) indicated that the position of hydrogen atoms on the hydroxyl group of polymers as a main active site could interact with hexanal molecules better than 2-AP molecules. In this work, it may be used as a guideline for research and development of sensing materials based on PAMPA-co-A to increase the sensing response to rice aroma compounds in the future by increasing of the number of repeating monomer unit of poly (2-acrylamido-2-methyl-1-propanesulfonic acid), and the number of the active site is consequently increased as well as sensor response to rice aroma compounds.
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Published manuscript are the rights of their original owners and RMUTSB Academic Journal. The manuscript content belongs to the authors' idea, it is not the opinion of the journal's committee and not the responsibility of Rajamangala University of Technology Suvarnabhumi
References
Abdullah, A. H., Adom, A.H., Shakaff, A. Y. Md., Ahmad, M. N., Zakaria, A., Fikri, N. A., & Omar, O. (2011). An electronic nose system for aromatic rice classification. Sensor Letters, 9(2), 850-855(6).
Abraham, M. J., Van der Spoel, D., Lindahl, E., Hess, B., & the GROMACS development team. (2018). Radial distribution functions. In GROMACS User Manual version 2016 (pp 196-198). www.gromacs.org.
Grimm, C. C., Bergman, C., Delgado, J. T., & Bryant, R. (2001). Screening for 2-Acetyl-1-pyrroline in the headspace of rice using SPME/GC-MS. Journal of Agricultural and Food Chemistry, 49, 245-249.
Hines, E. L., Boilot, P., Gardner, J. W., & Gongora, M. A. (2003). Pattern analysis for electronic nose. In T. C. Pearce, S. S. Schiffman, H. T. Nagle, & J. W. Gardner (Eds.), Handbook of machine olfaction: Electronic nose technology (pp. 133-160). Weinheim: Wiley-VCH.
Jana, A., Bhattacharyya, N., Bandyopadhyay, R., Adhikari, B., Tudu, B., Kundu, C., Roy, J. K., & Mukherjee S. (2011). Classification of aromatic and non-aromatic rice using electronic nose and artificial neural network. In Proceeding of Recent Advances in Intelligent Computational Systems (RAICS) (pp. 291-294). Trivandrum, Kerala, India: IEEE.
Lorwongtragool, P., & Kerdcharoen,T. (2015). Development of chemical sensor array for rice aroma detection. Advanced Materials Research, 1103, 15-20.
Mahatheeranont, S., Keawsa-ard, S., & Dumri, K. (2001). Quantification of the rice aroma compound, 2-Acetyl-1-pyrroline, in uncooked Khao Dawk Mali 105 brown rice. Journal of Agricultural and Food Chemistry, 49, 773-779.
Tananuwong, K., & Lertsiri, S. (2010). Changes in volatile aroma compounds of organic fragrant rice during storage under different conditions. Journal of the Science of Food and Agriculture, 90, 1590-1596.
Yang, D. S., Shewfelt, R. L., Lee, K.-S., & Kays, S. J. (2008). Comparison of odor-active compounds from six distinctly different rice flavor types. Journal of Agricultural and Food Chemistry, 56, 2780-2787.
Yoshihashi, T., Huong, N. T. T., Surojanametakul, V., Tungtrakul, P., & Varanyanond, W. (2005). Effect of storage conditions on 2-acetyl-1-pyrroline content in aromatic rice variety, Khao Dawk Mali 105. Journal of Food Science, 70, 34-37.
Zheng, X., Lan, Y., Zhu, J., Westbrook, J., Hoffmann, W. C., & Lacey, R. E. (2009). Rapid identification of rice samples using an electronic nose. Journal of Bionic Engineering, 6, 290-297.