Evaluation of Tomato Juice Quality Using Surface Enhanced Raman Spectroscopy

• Authors: R. Malekfar , A. Nikbakht , S. Abbasian , F. Sadeghi , M. Mozaffari
• Languages of publication: EN

Abstracts

EN

Tomato (Lycopersicon esculentum L.) is a valuable fruit cultivated in the world as an important plant. There are a lot of industries engaged with the drying, processing, quality control and sorting of tomato. A rapid and reliable measurement of qualitative factors of tomato and its products can be a serious necessity for the producers and industrialists. The objective of this research was to implement SERS as a modern technique to evaluate some qualitative parameters of tomato juice. To prevent the effect of cartenoids and florescence background, the juices were centrifuged. Silver colloid was prepared according to Lee and Meisel method for SERS experiments. The results were compared with the spectra obtained from ordinary spontaneous Raman spectroscopy technique data. Three major bands assigned to carbohydrates in tomato were detected and analyzed. Moreover, a medium band related to proteins could be identified. Comparison of SERS spectra with the normal spontaneous Raman spectra proved that SERS has a privilege in the measurement of carbohydrates and proteins as an effective, rapid and precise technique.

Keywords

EN

78.30.-j; 33.20.Fb

Discipline

• 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
• 33.20.Fb: Raman and Rayleigh spectra (including optical scattering)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 6
• Pages: 971-973

Dates

published

2010-06

received

2010-03-15

Contributors

author

R. Malekfar

• Faculty of Basic Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-175, I.R. Iran

author

A. Nikbakht

• Faculty of Agriculture, Tarbiat Modares University, Tehran P.O. Box 14115-336, I.R. Iran

author

S. Abbasian

• Faculty of Basic Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-175, I.R. Iran

author

F. Sadeghi

• Faculty of Basic Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-175, I.R. Iran

author

M. Mozaffari

• Faculty of Basic Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-175, I.R. Iran

References

• 1. C. Jing, Y. Fang, J. Colloid Interface Sci. 314, 46 (2007)
• 2. Z. Niu, Y. Fang, J. Colloid Interface Sci. 303, 224 (2006)
• 3. D. Wu, Y. Fang, J. Colloid Interface Sci. 265, 234 (2003)
• 4. X. Zhang, N.C. Shah, R.P. Van Duyne, Vibrational Spectroscopy 42, 2 (2006)
• 5. T. Vo-Dinh, Trends Analyt. Chem. 17, 557 (1998)
• 6. E. Smith, G. Dent, Modern Raman Spectroscopy, a Practical Approach (2006)
• 7. L.R. Wang, Y. Fang, Spectrochim. Acta 63, 614 (2006)
• 8. D.G. Yu, W.C. Lin, C.H. Lin, b, L.M. Chang, M.C. Yang, Mater. Chem. Phys. 101, 93 (2007)
• 9. G. Xiao, S. Man, Chem. Phys. Lett. 447, 305 (2007)
• 10. A.M.K. Pedro, M.M.C. Ferreira, Analyt. Chim. Acta 595, 221 (2007)
• 11. H. Schulz, M. Baranska, Vib. Spectrosc. 43, 13 (2007)
• 12. J. Dijkstra, F. Ariese, C. Gooijer, U.A.Th. Brinkman, Trends Anal. Chem. 24, 304 (2005)
• 13. J. Twardowski, P. Anzenbacher, Raman and IR Spectroscopy in Biology and Biochemistry Polish Scientific Publishers PWN Ltd, Warsaw 1994, p. 269
• 14. M.M. Paradkar, J. Irudayaraj, S. Sakhamuri, Appl. Eng. Agr. 18, 379 (2002)

Identifiers

DOI

10.12693/APhysPolA.117.971