- Volume 43 Issue 2
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Stability and antioxidant effect of rapeseed extract in oil-in-water emulsion
- Zhang, Hua (Department of Food Science and Technology, Yanbian University) ;
- Shin, Jung-Ah (Department of Food Science and Technology, Chungnam National University) ;
- Hong, Soon Taek (Department of Food Science and Technology, Chungnam National University) ;
- Lee, Ki-Teak (Department of Food Science and Technology, Chungnam National University)
- Received : 2016.03.03
- Accepted : 2016.06.13
- Published : 2016.06.30
In this study, rapeseed extracts were obtained by supercritical carbon dioxide fluid extraction of defatted rapeseed to evaluate the stability and antioxidant activity of an oil-in-water (O/W) emulsion system. The oil-in-water emulsions were prepared from stripped soybean oil with different concentrations (0.3, 0.4, 0.5, and 0.6%) of rapeseed extract as an emulsifier. Their emulsion stability was compared to that of emulsions prepared with the commercial emulsifier, Tween 20 (Polysorbate 20, 0.2%). After stripping the soybean oil, the total tocopherol content was reduced from 51.4 g/100 g to 1.1 g/100 g. Emulsion stability and oxidative stability of emulsions prepared with Tween 20 and rapeseed extract as emulsifiers were evaluated. For 30 days droplet sizes of emulsions containing rapeseed extract (0.4, 0.5, and 0.6%) were not significantly different (p > 0.05). Similar results were obtained for emulsion stability (ES) and Turbiscan analysis, suggesting that the addition of rapeseed extract increased emulsion stability. The addition of rapeseed extract at more than 0.4% resulted in an emulsion stability comparable to the addition of 0.2% Tween 20. The antioxidative ability of rapeseed extract increased with the amount added in the emulsion. Moreover, the addition of 0.6% rapeseed extract resulted in the lowest emulsion peroxide values (10.3 mEq/L) among all treatments. Therefore, according to the stability of its antioxidative and physical stability properties, rapeseed extract from super critical extraction could be successfully applied to the food and cosmetic industries.
- Alamed J, Chaiyasit W, McClements DJ, Decker EA. 2009. Relationships between free radical scavenging and antioxidant activity in foods. Journal of Agricultural and Food Chemistry 57:2969-2976. https://doi.org/10.1021/jf803436c
- Di Mattia CD, Sacchetti G, Mastrocola D, Pittia P. 2009. Effect of phenolic antioxidants on the dispersion state and chemical stability of olive oil O/W emulsions. Food Research International 42:1163-1170. https://doi.org/10.1016/j.foodres.2009.05.017
- Dickinson E. 1992. An introduction to Food Colloids. Oxford University Press Oxford. UK.
- Eldin K. 2006. Effect of fatty acids and tocopherols on the oxidative stability of vegetable oils. European Journal of Lipid Science and Technology 108:1051-1061.
- Fattori M, Bulley NR, Meisen A. 1987. Fatty acid and phosphorous contents of canola seed extracts obtained with supercritical carbon dioxide. Journal of Agricultural and Food Chemistry 35:739-743. https://doi.org/10.1021/jf00077a023
- Hong ST. 2008 Competitive displacement of methylcellulose from oil-water interface by various emulsifiers. Journal of the Korean Society of Food Science and Nutrition 37:1271-1277. [in Korean] https://doi.org/10.3746/jkfn.2008.37.10.1271
- Jafari SM, He Y, Bhandari B. 2007. Production of sub-micron emulsions by ultrasound and microfluidization techniques. Journal of Food Engineering 82:478-488. https://doi.org/10.1016/j.jfoodeng.2007.03.007
- Krygier, K., Sosulski, F. Hogge, L. 1992. Free, esterified and insoluble phenolic acids; Composition of phenolic flour and hulls. Journal of Agricultural and Food Chemistry 30:334-336.
- Kim JW, Jeong YS, Lee ES, Gil NY, Kim SS, Kim HH, Kim TY, Lee YH, Jang YS, Lee KT, Hong ST. 2013. Emulsifying properties of Surface-Active Substances from Defatted Rapeseed Cake by Supercritical Carbon Dioxide Extraction. Journal of Korean Oil Chemists' Society 30:635-348. [in Korean] https://doi.org/10.12925/jkocs.2013.30.4.635
- Korea Food and Drug Administration (KFDA). 2009. Food Standards Codex. Korean Foods Industry Association, Seoul, Korea. [in Korean]
- Lima AS, Alegre RM. 2009. Evaluation of emulsifier stability of biosurfactant produced by saccharomyces lipolytica CCT-0913. Brazilian Archives of Biology and Technology 52:285-290. https://doi.org/10.1590/S1516-89132009000200004
- Lee HJ, Lee ES, Hong ST. 2011. Extraction of surface-active substances from defatted rice bran by supercritical carbon dioxide. Food Engineering Progress 15:175-181. [in Korean]
- McClements DJ. 2004. Food Emulsions: Principles, Practice and Techniques. 2nd ed. CRC press, Boca Raton, FL, USA.
- Mei L, McClements DJ, Decker EA. 1999. Lipid oxidation in emulsions as affected by charge status of antioxidants and emulsion droplets. Journal of Agricultural and Food Chemistry 47:2267-2273. https://doi.org/10.1021/jf980955p
- McDonald RE, Hultin HO. 1987. Some characteristics of the enzymatic lipid-peroxidation system in the microsomal fraction of flounder skeletal-muscle. Journal of Food Science 52:15-21. https://doi.org/10.1111/j.1365-2621.1987.tb13964.x
- Walstra P. 1993. Principles of emulsion formation. Chemical Engineering Science 48:333-349. https://doi.org/10.1016/0009-2509(93)80021-H