Abstract
Adulteration of food is a serious issue that impacts personal and social health. Using highly sensitive and nondestructive single-beam thermal lens technique, the present work analyses the adulteration of edible coconut oil with hazardous paraffin oil. The present study overcomes the limitations with conventional spectroscopic technique, as it employs the photothermal technique for the trace detection of adulterants and nonradiative energy release. Samples prepared with trace amount of paraffin oil in coconut oil were subjected to ultraviolet (UV)–visible spectroscopic characterization. The study reveals that the optical absorption and thermal diffusivity decrease with the increase of the adulterant.
Similar content being viewed by others
References
L.M. Reid, C.P. O’donnell, G. Downey, Trends Food Sci. Technol. 17, 344 (2006)
T.V. Oommen, I.E.E.E. Electr, Insul. Mag. 18, 6 (2002)
N.H. Jayadas, K.P. Nair, G. Ajithkumar, Tribol. Int. 40, 350 (2007)
M. Sheeba, M. Rajesh, C.P.G. Vallabhan, V.P.N. Nampoori, P. Radhakrishnan, Meas. Sci. Technol. 16, 2247 (2005)
A. Rohman, Y.B. Che Man, A. Ismail, P. Hashim, J. Am. Oil Chem. Soc. 87, 601 (2010)
A.A. Christy, S. Kasemsumran, Y. Du, Y. Ozaki, Anal. Sci. 20, 935 (2004)
V. Baeten, M. Meurens, M.T. Morales, R. Aparicio, J. Agric. Food Chem. 44, 2225 (1996)
E.C. López-Díez, G. Bianchi, R. Goodacre, J. Agric. Food Chem. 51, 6145 (2003)
M.F. Barbosa, H.V. Dantas, A.S. de Pontes, W.S. da Lyra, P.H.G.D. Diniz, M.C.U. de Araújo, E.C. da Silva, LWT Food Sci. Technol. 63, 1037 (2015)
N.A. Marigheto, E.K. Kemsley, M. Defernez, R.H. Wilson, J. Am. Oil Chem. Soc. 75, 987 (1998)
A. Rosencwaig, Anal. Chem. 47, 592A (1975)
J. Sell, Photothermal investigations of solids and fluids (Elsevier, Amsterdam, 2012)
A.C. Tam, Rev. Mod. Phys. 58, 381 (1986)
S. Sankararaman, J. Mater. Sci. Nanotechnol. 4, 204 (2016). https://doi.org/10.15744/2348-9812.4.204.
S. Bialkowski, Photothermal spectroscopy methods for chemical analysis (Wiley, Hoboken, 1996)
M.S. Swapna, S. Manjusha, V. Raj, M. Hari, S. Sankararaman, J. Opt. Soc. Am. B 35, 1662 (2018)
R.D. Snook, R.D. Lowe, Analyst 120, 2051 (1995)
M. Franko, Talanta 54, 1 (2001)
S. Sankara Raman, Investigation on thermal diffusivity of some selected materials using laser induced photoacoustic technique (Cochin University of Science and Technology, Cochin, Kerala, 1999)
M. Havaux, L. Lorrain, R.M. Leblanc, Photosynth. Res. 24, 63 (1990)
S. Sankara Raman, V.P.N. Nampoori, C.P.G. Vallabhan, G. Ambadas, S. Sugunan, J. Appl. Phys. 85, 1987 (1999)
C.C. Ghizoni, L.C.M. Miranda, Phys. Rev. B 32, 8392 (1985)
S. Sankara Raman, V.P.N. Nampoori, C.P.G. Vallabhan, G. Ambadas, S. Sugunan, Appl. Phys. Lett. 67, 2939 (1995)
A.S. Fontes, A.C. Bento, M.L. Baesso, L.C.M. Miranda, Instrum. Sci. Technol. 34, 163 (2006)
E. López-Romero, J. A. Balderas-López, in J. Phys. Conf. Ser. (IOP Publishing, 2017), p. 12089
D.J. McClements, M.J.W. Povey, Ultrasonics 30, 383 (1992)
L. Pogačnik, M. Franko, Biosens. Bioelectron. 18, 1 (2003)
M. Franko, M. Šikovec, J. Kozar-Logar, D. Bicanic, in Anal. Sci. Proc. 11th Int. Conf. Photoacoust. Photothermal Phenom. (The Japan Society for Analytical Chemistry, 2002), pp. s515–s518
J.A.P. Lima, M.S.O. Massunaga, H. Vargas, L.C.M. Miranda, Anal. Chem. 76, 114 (2004)
M. Franko, C.D. Tran, Rev. Sci. Instrum. 67, 1 (1996)
J.P. Gordon, R.C.C. Leite, R. Moore, S.P.S. Porto, J.R. Whinnery, J. Appl. Phys. 36, 3 (1965)
C. Hu, J.R. Whinnery, Appl. Opt. 12, 72 (1973)
J.H. Brannon, D. Magde, J. Phys. Chem. 82, 705 (1978)
R. Sebastian, M.S. Swapna, V. Raj, M. Hari, S. Sankararaman, Mater. Res. Express 5, 075001 (2018)
Z. Yan, D.B. Chrisey, J. Photochem. Photobiol. C Photochem. Rev. 13, 204 (2012)
V. Raj, S. Soumya, M.S. Swapna, S. Sankararaman, Mater. Res. Express 5, 115504 (2018)
A. Sarı, Energy Convers. Manag. 45, 2033 (2004)
J. Sirison, A. Rirermwong, N. Tanwisuit, T. Meaksan, Br. Food J. 119, 2194 (2017)
C. Vélez, M. Khayet, J.M.O. De Zárate, Appl. Energy 143, 383 (2015)
M.N.R. Dimaano, T. Watanabe, Appl. Therm. Eng. 22, 365 (2002)
Acknowledgements
Vimal Raj is grateful to the Council of Scientific and Industrial Research (India) for research fellowship.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Raj, V., Swapna, M.S., Devi, H.V.S. et al. Nonradiative analysis of adulteration in coconut oil by thermal lens technique. Appl. Phys. B 125, 113 (2019). https://doi.org/10.1007/s00340-019-7228-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00340-019-7228-6