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Optimization of oil bleaching parameters, using response surface methodology, for acid-activated sepiolite from Iran

Published online by Cambridge University Press:  02 January 2018

Mojtaba Saneei ,
Sayed Amir Hossein Goli  and
Javad Keramat
Mojtaba Saneei
Affiliation:
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
Sayed Amir Hossein Goli*
Affiliation:
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
Javad Keramat
Affiliation:
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
*
*Email: amirgoli@cc.iut.ac.ir
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Abstract

An Iranian sepiolite was activated with 1.5 M HCl. During activation, the specific surface area increased from 105 to 168 m2/g and the SiO2 content increased from 45.4 to 51.6%. The roles of temperature and time and the amount of acid-activated sepiolite used, were investigated and the optimum conditions, where chlorophyll, β-carotene, free fatty acid and peroxide were at their minimum levels, were determined for bleaching of canola oil by applying response surface methodology (RSM). Optimum bleaching conditions were obtained by adding 3% of acid-activated sepiolite at a temperature of 110°C with a bleaching time of 42.46 min during which, the amount of chlorophyll-α, β-carotene, free fatty acid and peroxide were reduced from 12.30 to 0.35 mg/kg, 49.15 to 14.98 mg/kg, 0.62 to 0.15%, and 3.87 to 2.14 meq O2/kg of oil, respectively. At optimum conditions, sepiolite displayed a greater capacity for removal of chlorophyll and β-carotene than a commercial bentonite bleaching agent.

Keywords

β-carotenechlorophylledible oilsepiolite
Type
Research Article
Information
Clay Minerals , Volume 50 , Issue 5 , December 2015 , pp. 639 - 648
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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References

Ajemba, R.O., Igbokwe, P.K. & Onukwuli, O.D. (2013) Optimization of color pigments removal from palm oil by activated Ukpor clay using response surface methodology. Research Journal of Applied Sciences, Engineering and Technology, 6, 423–432.Google Scholar
American Oil Chemist's Society (1997) Official Methods and Recommended Practices oftheAOCS. AOCS 5th edition. AOCS Press, Champaign, Illinois, USA.Google Scholar
Balci, S. (1996) Thermal decomposition of sepiolite and variations in pore structure with and without acid pre-treatment. Journal of Chemical Technology and Biotechnology, 66, 72–78.Google Scholar
Balci, S. (1999) Effect of heating and acid pre-treatment on pore size distribution of sepiolite. Clay Minerals, 34, 647–655.Google Scholar
Box, G.E.P. & Wilson, K.B. (1951) On the experimental attainment of optimum conditions. Journal of the Royal Statistical Society (Series B), 13, 1–45.Google Scholar
European Standards (1998) Test for Mechanical and Physical Properties of Aggregates-Part 3: Determination of Loose Bulk Density and Voids. German version.Google Scholar
García-Moreno, P.J. Guadix, A., Gómez-Robledo, L., Melgosa, M. & Guadix, E.M. (2013) Optimization of bleaching conditions for sardine oil. Journal of Food Engineering, 116, 606–612.CrossRefGoogle Scholar
Jahouach, W., Essid, K., Trabelsi, M. & Frikha, M.H. (2006) Alteration of chemical composition and the oxidative stability of bleached Pomace—olive oil on activated clays. Journal of Agricultural and Food Chemistry, 54, 7137–7143.Google Scholar
Kaynak, G., Ersoz, M. & Kara, H. (2004) Investigation of the properties of oil at the bleaching unit of an oil refinery. Journal of Colloid and Interface Science, 280, 131–138.CrossRefGoogle ScholarPubMed
Kilislioglu, A. & Aras, G. (2010) Adsorption of uranium from aqueous solution on heat and acid treated sepiolites. Applied Radiation and Isotopes, 68, 2016—2019.Google Scholar
Kim, I. & Choe, E. (2005) Effects of bleaching on the properties of roasted sesame oil. Journal of Food Science, 70, 48–52.Google Scholar
Liu, Y., Huang, Y. & Wang, X. (2008) Adsorption isotherms for bleaching soybean oil with activated attapulgite. Journal of the American Oil Chemists’ Society, 85, 979–984.Google Scholar
Ma, M.H. & Lin, C.I. (2004) Adsorption kinetics of β-carotene from soy oil using regenerated clay. Separation and Purification Technology, 39, 201–209.CrossRefGoogle Scholar
ÖHMI-Method L 004-13, Bestimmung von Carotin, ÖHMI Engineering, Magdeburg, Germany.Google Scholar
Ofochebe, S.M. & Ozoegwu, C.G. (2014) Optimisation of the sorption capacity of sulphuric acid activated IBUSA clay in palm oil bleaching using response surface methodology. International Journal of Experimental Design and Process Optimisation, 4, 166–182.CrossRefGoogle Scholar
Qizhi, L., Yonghui, H., Haiyan, Z., Bedgood, D.R., Prenzler, P.D. & Robards, K. (2008) The quality and volatile-profile changes of camellia oil (Camellia oleifera Abel) following bleaching. European Journal ofLipid Science and Technology, 110, 768–775.Google Scholar
Rossi, M., Gianazza, M., Alamprese, C. & Stanga, F. (2003) The role of bleaching clays and synthetic silica in palm oil physical refining. Food Chemistry, 82, 291–296.CrossRefGoogle Scholar
Sabah, E. (2007) Decolorization of vegetable oils: Chlorophyll-a adsorption by acid-activated sepiolite. Journal of Colloid and Interface Science, 310, 1—7.Google Scholar
Sabah, E. & Çelik, M. (2005) Sepiolite: An effective bleaching adsorbent for the physical refining of degummed rapeseed oil. Journal of the American Oil Chemists’ Society, 82, 911–916.Google Scholar
Sabah, E. & Majdan, M. (2009) Removal of phosphorus from vegetable oil by acid-activated sepiolite. Journal of Food Engineering, 91, 423–427.Google Scholar
Sabah, E., Çinar, M. & Çelik, M.S. (2007) Decolorization of vegetable oils: Adsorption mechanism of β-carotene on acid-activated sepiolite. Food Chemistry, 100, 1661–1668.Google Scholar
Shimizu, M., Moriwaki, J., Shiiba, D., Nohara, H., Kudo, N. & Katsuragi, Y. (2012) Elimination of glycidyl palmitate in diolein by treatment with activated bleaching earth. Journal ofOleo Science, 61, 23–28.Google Scholar
Silva, S.M., Sampaio, K.A., Ceriani, R., Verhé, R., Stevens, C., De Greyt, W. et al. (2013) Adsorption of carotenes and phosphorus from palm oil onto acid activated bleaching earth: Equilibrium, kinetics and thermodynamics. Journal of Food Engineering, 118, 341–349.Google Scholar
Skevin, D., Domijan, T., Kraljic, K., Kljusuric, J.G. & Nederal, S. (2012) Optimization of Bleaching Parameters for Soybean Oil. Food Technology and Biotechnology, 2, 199–207.Google Scholar
Tai, Y.H. & Lin, C.I. (2007) Variation of peroxide value in water-degummed and alkali-refined soy oil during bleaching under vacuum. Separation and Purification Technology, 56, 257–264.Google Scholar
Taylor, D.R. (2005) Bleaching Bailey's Industrial Oil and Fat Products. John Wiley & Sons, Inc., pp. 25—29.Google Scholar
Tian, G., Wang, W., Kang, Y. & Wang, A. (2014) Study on thermal activated sepiolite for enhancing decoloration of crude palm oil. Journal of Thermal Analysis and Calorimetry 117, 1211–1219.CrossRefGoogle Scholar
Tong, J., Wu, Z., Sun, X., Xu, X. & Li, C. (2008) Adsorption kinetics of β-carotene and chlorophyll onto acid-activated bentonite in model oil. Chinese Journal of Chemical Engineering, 16, 270–276.CrossRefGoogle Scholar
Ugurlu, M. & Kula, I. (2007) The removal of colour, carotene and acidity from crude olive oil by using sepiolite. International Journal of Food Science & Technology, 42, 359–365.Google Scholar
Zadaka Amir, D., Bleiman, N. & Mishael, Y.G. (2013) Sepiolite as an effective natural porous adsorbent for surface oil-spill. Microporous and Mesoporous Materials, 169, 153–159.Google Scholar
Worasith, N., Goodman, B., Jeyashoke, N. & Thiravetyan, P. (2011) Decolorization of rice bran oil using modified kaolin. Journal of the American Oil Chemists’ Society, 88, 2005–2014.Google Scholar