Czech J. Food Sci., 2018, 36(3):268-275 | DOI: 10.17221/460/2016-CJFS

Modelling of the sorption isotherms and determination of the isosteric heat of split pistachios, pistachio kernels and shellsFood Technology and Economy, Engineering and Physical Properties

Sediqeh SOLEIMANIFARD1*, Naser HAMDAMI2
1 Food Science and Technology Department, College of Agriculture, University of Zabol, Zabol, Iran
2 Food Science and Technology Department, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

We aimed to measure the equilibrium moisture content of the Ohadi variety of pistachio shells, pistachio kernels and split pistachios using gravimetric methods at 25, 40, 55, and 70°C and saturated salt solutions with water activities ranging from 0.08 to 0.97. Then, 11 mathematical models were used to select the best model for data description. The GAB model, which had the maximum value for the correlation coefficient (R2) and minimum values for the chi-squared test (χ2) and root mean square error (RMSE), was identified as the best model for split pistachios and pistachio kernels. The Caurie model, meanwhile, was identified as the best model for pistachio shells. In this test, there was no significant hysteresis between the desorption and adsorption curves. Furthermore, the isosteric heat of adsorption and desorption were also determined using thermodynamic equations (e.g., the Clausius-Clapeyron equation).

Keywords: drying; gravimetric method; isosteric heat; water activity

Published: June 30, 2018  Show citation

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SOLEIMANIFARD S, HAMDAMI N. Modelling of the sorption isotherms and determination of the isosteric heat of split pistachios, pistachio kernels and shells. Czech J. Food Sci.. 2018;36(3):268-275. doi: 10.17221/460/2016-CJFS.
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References

  1. Al-Muhtaseb A.H., McMinn W.A.M., Magee T.R.A. (2004): Water sorption isotherms of starch powders: Part 1: Mathematical description of experimental data. Journal of Food Engineering, 61: 297-307. Go to original source...
  2. Anderson R.B. (1946): Modifications of the Brunauer, Emmet and Teller equation. Journal of the American Chemical Society, 68: 686-691. Go to original source...
  3. Ayranci E., Dalgic C. (1992): Moisture sorption isotherms of Pistacia terebinthus L. and its protein isolate. LWT-Food Science and Technology, 25: 482-483.
  4. Basunia M.A., Abe T. (2001): Thin layer solar drying characteristics of rough rice under natural convection. Journal of Food Engineering, 47: 295-301. Go to original source...
  5. Benado A.L., Rizvi S.S.H. (1985): Thermodynamic properties of water on rice as calculated from reversible and irreversible isotherms. Journal of Food Science, 50: 101-105. Go to original source...
  6. Brunauer S., Deming L.S., Deming W.E., Troller E. (1940): On the theory of Van der Waals adsorption of gases. Journal of the American Chemical Society, 62: 1723-1732. Go to original source...
  7. Caurie M. (1970): A new model equation for predicting safe storage moisture levels for optimum stability of dehydrated foods. Journal of Food Technology, 5: 301-307. Go to original source...
  8. Chung D.S., Pfost H.B. (1967): Adsorption and desorption of water vapour by cereal grains and their products. Transactions of the ASABE, 10: 549-554. Go to original source...
  9. Farahnaky A., Mansoori N., Majzoobi M., Badii F. (2016): Physicochemical and sorption isotherm properties of date syrup powder: Antiplasticizing effect of maltodextrin. Food and Bioproducts Processing, 98: 133-141. Go to original source...
  10. Garbalińska H., Bochenek M., Malorny W., von Werder J. (2017): Comparative analysis of the dynamic vapor sorption (DVS) technique and the traditional method for sorption isotherms determination - Exemplified at autoclaved aerated concrete samples of four density classes. Cement and Concrete Research, 91: 97-105. Go to original source...
  11. Ghodake H.M., Goswami T.K., Chakraverty A. (2007): Moisture sorption isotherms, heat of sorption and vaporization of withered leaves, black and green tea. Journal of Food Engineering, 78: 827-835. Go to original source...
  12. Halsey G.D. (1948): Physical adsorption on non-uniform surfaces. Journal of Chemical Physics, 16: 931-937. Go to original source...
  13. Hayoglu I., Gamli O.F. (2007): Water sorption isotherms of pistachio nut paste. International Journal of Food Science and Technology, 42: 224-227. Go to original source...
  14. Henderson S.M. (1952): A basic concept of equilibrium moisture. Agriculture Engineering, 33: 29-32.
  15. Karatas S., Battalbey M.F. (1991): Determination of moisture diffusivity of pistachio nut meat during drying. LWT- Food Science and Technology, 24: 484-487.
  16. Kashani Nejad M., Tabil L.G., Mortazavi A., SafeKordi A., Nakhaei M., Nikkho M. (2002): Effect of drying methods on quality of pistachio nuts. In: 2002 ASAE/ CSAE North-Central Intersectional Meeting, 202-213.
  17. Kuhn I. (1964): A new theoretical analysis of adsorption phenomena, introductory part: the characteristic expression of the main regular types of adsorption isotherms by a single simple equation. Journal of Colloid Science, 19: 685-698. Go to original source...
  18. Lahsasni S., Kouhila M., Mahrouz M., Fliyou M. (2003): Moisture adsorption desorption isotherms of prickly pear cladode (Opuntia ficus indica) at different temperatures. Energy Conversion and Management, 44: 923-936. Go to original source...
  19. Maskan M., Gogus F. (1997): The fitting of various models to water sorption isotherms of pistachio nut paste. Journal of Food Engineering, 33: 227-237. Go to original source...
  20. Maskan M., Karatas S. (1997): Sorption characteristics of whole pistachio nuts (Pistachio vera L.). Drying Technology, 15: 1119-1139. Go to original source...
  21. Menkov N.D. (2000): Moisture sorption isotherms of chickpea seeds at several temperatures. Journal of Food Engineering, 45: 189-194. Go to original source...
  22. Moreira R., Chenlo F., Torre M.D., Vallejo N. (2008): Thermodynamic analysis of experimental sorption isotherms of loquat and quince fruits. Journal of Food Engineering, 88: 514-521. Go to original source...
  23. Mujumdar A.S., Devahastin S. (2000): Mujumdar's Practical Guide to Industrial Drying. Montreal, Exergex Corporation: 1-22.
  24. Nikoly D.M. (2000): Moisture sorption isotherms of chickpea seeds at several temperatures. Journal of Food Engineering, 45: 189-194. Go to original source...
  25. Oswin G.R. (1946): The kinetics of package life. International Journal of Industrial Chemistry, 65: 419-421. Go to original source...
  26. Peleg M. (1993): Assessment of a semi-empirical four parameter general model for sigmoid moisture sorption isotherms. Journal of Food Process Engineering, 16: 21-37. Go to original source...
  27. Peng G., Chen X., Wu W., Jiang X. (2007): Modeling of water sorption isotherm for corn starch. Journal of Food Engineering, 80: 562-567. Go to original source...
  28. Perry R.H., Green D.W., Maloney J.O. (1984): Perry's Chemical Engineers, Handbook. New York, McGraw-Hill: 1326-1327.
  29. Rouquerol J., Rouquerol F., Llewellyn P., Maurin G., Sing K.S. (2013): Adsorption by Powders and Porous Solids: Principles, Methodology and Applications. 2nd Ed. Academic Press: 45-48.
  30. Santanu-Basu U.S., Shivhare Mujumdar A.S. (2006): Models for sorption isotherms for foods: a review. Drying Technology, 24: 917-930. Go to original source...
  31. Smith S.E. (1947): The sorption of water vapor by high polymers. Journal of American Chemical Society, 96: 646-651. Go to original source...
  32. Talla A., Jannot Y., Nkeng G.E., Puiggali J.R. (2005): Experimental determination and modelingof sorption isotherms of tropical fruits: banana, mango, and pineapple. Drying Technology, 23: 1477-1498. Go to original source...
  33. Tavakolipour H. (2011): Drying Kinetics of pistachio nuts (Pistacia vera L.). World Applied Sciences Journal, 12: 1639-1646.
  34. Tavakolipour H., Kalbasi A. (2008): Estimation of moisture sorption isotherms in Kerman pistachio nuts. Journal of Food Process Engineering, 31: 564-582. Go to original source...
  35. Tejada-Ortigoza V., Garcia-Amezquita L.E., SermentMoreno V., Torres J.A., Welti-Chanes J. (2017): Moisture sorption isotherms of high pressure treated fruit peels used as dietary fiber sources. Innovative Food Science & Emerging Technologies, 43: 45-53. Go to original source...
  36. Tunç S., Duman O. (2007): Thermodynamic properties and moisture adsorption isotherms of cottonseed protein isolate and different forms of cottonseed samples. Journal of Food Engineering, 81: 133-143. Go to original source...
  37. Van den Berg C. (1981): Vapour orption equilibria and other water-starch interactions: a physico-chemical approach [Dissertation Thesis.] Netherlands, Agricultural University Wageningen.
  38. Yanniotis S., Zaramboutis H. (1996): Water sorption isotherms of pistachio nuts. LWT-Food Science and Technology, 29: 372-375. Go to original source...
  39. Yazdanip M.P.S., Azizi M., Ghobadi P. (2006): Moisture sorption isotherms and isosteric heat for pistachio. Europen Food Research Technology, 223: 577-584. Go to original source...

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