ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
Copyright © 2025 KICHE. All rights reserved

Articles & Issues

Language
English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received April 18, 2014
Accepted June 2, 2014
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

All issues

Optimization of decoloring conditions of crude fatty acids recovered from crude glycerol by acid-activated clay using response surface method

Department of Chemical and Biological Engineering & ERI, Gyeongsang National University, Jinju 660-701, Korea 1KB Cosmetics, Jinju 660-841, Korea 2Department of Applied Statistics and Information Science, Dongguk University, Gyeongju 780-714, Korea
cj_kim@gnu.ac.kr
Korean Journal of Chemical Engineering, November 2014, 31(11), 2070-2076(7)
https://doi.org/10.1007/s11814-014-0158-4
downloadDownload PDF

Abstract

Crude glycerol, a by-product of the biodiesel production process, contains a high amount of fatty acids that cannot be used directly without removing the strong dark color. This study aims to remove the color impurities in crude fatty acids, prepared by acid-precipitation and hexane extraction, using acid-activated clay as an adsorbent. The effects of bleaching temperature, contact time, the amount of acid-activated clay, and concentration of color impurities were investigated. No significant effects of bleaching temperature or contact time were observed. In an optimization study using the central composite design, complete decolorization was achieved at an optimized condition, in which 3.5 g of clay was added to 10mL of crude fatty acid solution with an optical density at 373 nm of 20. Notably, more than 80% of the peroxides was concurrently removed. However, a 37% loss in fatty acids was observed during decolorization. The clay was repeatedly used without loss of adsorption capability if it was calcined at 600 ℃ after use.

References

Thomson JC, He BB, Appl. Eng. Agr., 22, 261 (2006)
Yang F, Hanna MA, Sun R, Biotechnol. Biofuels, 5, 13 (2012)
Pyle DJ, Garcia RA, Wen Z, J. Agric. Food Chem., 56, 3933 (2008)
Venkataramanan KP, Boatman JJ, Kurniawan Y, Taconi KA, Bothun GD, Scholz C, Appl. Microbiol. Biotechnol., 93(3), 1325 (2012)
Alvarez AMR, Rodriguez MLG, Fasc., 51, 74 (2000)
Ibrahim SA, Li SK, Pharm. Res., 27, 115 (2010)
Maki-Arvela P, Kuusisto J, Sevilla EM, Simakova I, Mikkola JP, Myllyoja J, Salmi T, Murzin DY, Appl. Catal. A: Gen., 345(2), 201 (2008)
Gonus P, Wille HJ, US Patent, 5,401,862 (1995)
Worasith N, Goodman BA, Jeyashoke N, Thiravetyan P, J. Am. Oil Chem. Soc., 88, 2005 (2011)
Makhoukhi B, Didi MA, Villemin D, Azzouz A, Grasas Y. Aceites, 60, 343 (2009)
Hussin F, Aroua MK, Daud WMAW, Chem. Eng. J., 170(1), 90 (2011)
Wanasundara UN, Shahidi F, Food Chem., 65, 41 (1999)
Hu S, Lu X, Wan C, Li Y, J. Agric. Food Chem., 60, 5915 (2012)
Arudi RL, Sutherland MW, Bielski BHJ, J. Lipid Res., 24, 485 (1983)
Holman RT, Lundberg WO, Lauer WM, Burr GO, J. Am. Chem. Soc., 67, 1285 (1945)
Mohammed C, Alhassan Y, Yargamji GI, Garba S, Bello Z, Ifeyinwa AI, J. Basic. Appl. Chem., 1, 80 (2011)
Usman MA, Ekwueme VI, Alaje TO, Mohammed AO, ISRM Ceramics, 5 (2012)
Joy NAB, Richard K, Pierre NJ, J. Appl. Sci., 7, 2462 (2007)
Langmaack T, Eggers R, Eur. J. Lipid Sci. Technol., 104, 98 (2002)
Achife EC, Ibemesi J, J. Am. Oil Chem. Soc., 66, 247 (1989)
Ahuja SK, Ferreira GM, Moreira AR, Biotechnol. Bioeng., 85(6), 666 (2004)
Huang L, Lu Z, Yuan Y, Lu F, Bie X, J. Ind. Microbiol. Biotechnol., 33, 55 (2006)
Klein-Szanto AJP, Slaga TJ, J. Invest. Dermatol., 79, 30 (1982)
Ganceviciene R, Liakou AI, Theodoridis A, Makrantonaki E, Zouboulis CC, Dermato-Endocrinology, 4, 308 (2012)
Lewis II JA, Dinardo JC, McDaniel DH, Cosmet. Dermatol., 22, 576 (2009)
Meesuk L, Seammai S, ScienceAsia., 36, 33 (2010)
Falaras P, Kovanis I, Lezou F, Seiragakis G, Clay Minerals, 34, 221 (1999)
Sari A, Ipyldak O, Bull. Chem. Soc. Ethiop., 20, 259 (2006)
Rogan KR, Colloid. Polym. Sci., 272, 82 (1994)
Foletto EL, Alves CCA, Sganzerla LR, Porto LM, Latin American Applied Research, 32, 205 (2002)
Boukerroui A, Ouali MS, J. Chem. Technol. Biotechnol., 75(9), 773 (2000)
Low KS, Lee CK, Kong LY, J. Chem. Technol. Biotechnol., 72(1), 67 (1998)

The Korean Institute of Chemical Engineers. F5,119, Anam-ro, Seongbuk-gu, Seoul, Republic of Korea
TEL. No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Journal of Chemical Engineering 상단으로