JST  Vol.1 No.1 , March 2011
Application of a Quartz Crystal Microbalance (QCM) System Coated with Chromatographic Adsorbents for the Detection of Olive Oil Volatile Compounds
ABSTRACT
A sensor based on the technique of a piezoelectric quartz crystal microbalance (QCM) is analyzed for the detection of six organic volatile compounds with high olive oil sensory significance, such as hexanal, acetic acid, Z-3-hexenyl acetate, undecane, 1-octen-3-ol and 2-butanone. Four sample concentrations have been exposed to each QCM sensor constructed. The detection system is based on the sample adsorption on the forty sensing films coated at the surfaces of forty AT-cut gold-coated quartz crystals. Each sensing film has been prepared with different solution concentrations of ten materials, usually used as chromatographic sta-tionary phases. Sensing film coating process shows excellent repeatability, with coefficient values less than 0.50%. The frequency shifts of the piezoelectric crystals due to the adsorption of the volatile compounds have been measured as sensor responses, using a static measurement system. The results show that only five QCM sensors, with high sensitivity values, are enough to the detection of the volatile compounds studied. Therefore, the developed detection system presented herein provides a rapid identification of organic volatile compounds with elevated olive oil sensory connotation and it could be a substitute technique to the analytical methods normally used for the analysis of the olive oil flavor.

Cite this paper
nullM. Escuderos, S. Sánchez and A. Jiménez, "Application of a Quartz Crystal Microbalance (QCM) System Coated with Chromatographic Adsorbents for the Detection of Olive Oil Volatile Compounds," Journal of Sensor Technology, Vol. 1 No. 1, 2011, pp. 1-8. doi: 10.4236/jst.2011.11001.
References
[1]   “European Communities Regulation 640/2008,” Official Journal of European Communities, Legis Number 178, 2008, pp. 11-16.

[2]   International Olive Oil Council, IOOC/T.20/Document 15/Rev. 2 (Organoleptic assessment of olive oil Resolution, September), Madrid, Spain, 2007.

[3]   F. Angerosa, M. Servili, R. Selvaggini, A. Taticchi, S. Esposto and G. Montedoro, “Volatile Compounds in Virgin Olive Oil: Occurrence and Their Relationship with the Quality,” Journal of Chromatography A, Vol. 1054, No. 1, October 2004, pp. 17-31. doi:10.1016/j.chroma.2004.07.093

[4]   M. E. Escuderos, M. Uceda, S. Sánchez and A. Jiménez, “Instrumental Technique Evolution for Olive Oil Sensory Analysis,” European Journal of Lipid Sciences and Technology, Vol. 109, No. 5, May 2007, pp. 536-546. doi:10.1002/ejlt.200600239

[5]   M. E. Escuderos, “QCM Piezoelectric Sensor to Olive Oil Sensory Characterization,” Ph.D. Thesis, University of Jaén, Spain, 2008.

[6]   A. K. M. Shafiqul, Z. Ismail, M. N. Ahmad, B. Saad, A. R. Othman, A. Y. Md. Shakaff, A. Daud and Z. Ishak, “Transient Parameters of a Coated Quartz Crystal Microbalance Sensor for the Detection of Volatile Organic Compounds (VOCs),” Sensors and Actuators B, Vol. 109, No. 2, September 2005, pp. 238-243. doi:10.1016/j.snb.2004.12.116

[7]   X. Xu, H. Cang, C. Li, Z. K. Zhao and H. Li, “Quartz Crystal Microbalance Sensor Array for the Detection of Volatile Organic Compounds,” Talanta, Vol. 78, No. 3, May 2009, pp. 711-716. doi:10.1016/j.talanta.2008.12.031

[8]   H.-C. Hana, Y.-R. Chang, W.-L. Hsu and C.-Y. Chen, “Application of Parylene-Coated Quartz Crystal Microbalance for On-line Real-Time detection of microbial populations,” Biosensors and Bioelectronics, Vol. 24, No. 6, February 2009, pp. 1543-1549. doi:10.1016/j.bios.2008.07.033

[9]   M. T. Morales, G. Luna and R. Aparicio, “Comparative Study of Virgin Olive Oils Sensory Defects,” Food Che- mistry, Vol. 91, No. 2, June 2005, pp. 293-301. doi:10.1016/j.foodchem.2004.06.011

[10]   A. Kanavouras, A. Kiritsakis and R. J. Hernández, “Comparative Study on Volatile Analysis of Extra Virgin Olive Oil by Dynamic Headspace and Solid Phase Micro-Extraction,” Food Chemistry, Vol. 90, No. 1, March 2005, pp. 69-79. doi:10.1016/j.foodchem.2004.03.025

[11]   R. Ni, X-B. Zhang, W. Liu, G. L. Shen and R.-Q. Yu, “Piezoelectric Quartz Crystal Sensor Array with Optimized Oscillator Circuit for Analysis of Organic Vapors Mixtures,” Sensors and Actuators B, Vol. 88, No. 2, January 2003, pp. 198-204. doi:10.1016/S0925-4005(02)00345-3

[12]   A. K. M. Shafiqul, Z. Ismail, B. Saad, A. R. Othman, M. N. Ahmad and A. Y. Md. Shakaff, “Correlation Studies between Electronic Nose Response and Headspace Volatiles of Eurycoma Longifolia Extracts,” Sensors and Actuators B, Vol. 120, No. 1, December 2006, pp. 245-251. doi:10.1016/j.snb.2006.02.020

[13]   A. K. M. Shafiqul, Z. Ismail, B. Saad, A. R. Othman, A. Y. Md. Shakaff, A. Daud and Z. Ishak, “Transient Parameters of Coated Quartz Crystal Microbalance Sensors for the Detection of Volatile Organic Compounds (VOCs),” Sensors and Actuators B, Vol. 109, No. 2, September 2005, pp. 238-243. doi:10.1016/j.snb.2004.12.116

[14]   S. Mu?oz, T. Nakamoto and T. Moriizumi, “Study of Quartz Crystal Microbalance Odor Sensing System for Apple and Banana Flavors,” IEICE Transactions on Electronics, Vol. 85, No. 6, June 2002, pp. 1291-1297.

[15]   A. S. Yuwono and P. S. Lammers, “Performance Test of a Sensor Array-Based Odor Detection Instrument,” Journal of Science and Research Development, Vol. 3, 2004, pp. 9-25.

[16]   F. Angerosa, B. Lanza and V. Marsilio, “Biogenesis of ‘Fusty’ Defect in Virgin Olive Oils,” Grasas y Aceites, Vol. 47, No. 3, 1996, pp. 142-150. doi:10.3989/gya.1996.v47.i3.854

[17]   J.F. Cavalli, X. Fernández, L. Lizzani-Cuvelier and A. M. Loiseau, “Comparison of Static Headspace, Headspace Solid Phase Microextraction, Headspace Sorptive Extraction, and Direct Techniques on Chemical Composition of French olive oils,” Journal of Agricultural and Food Chemistry, Vol. 51, No. 26, December 2003, pp. 7709- 7716. doi:10.1021/jf034834n

[18]   W. Dhifi, F. Angerosa, A. Serraiocco, I. Oumar, I. Hamrouni and B. Marzouk, “Virgin Olive Oil Aroma: Characterization of Some Tunisian Cultivars,” Food Chemistry, Vol. 93, No. 4, December 2005, pp. 697-701. doi:10.1016/j.foodchem.2004.12.036

 
 
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