Crude Wax Extracted from Rice Bran Oil Improves Oleogel Properties and Oxidative Stability |
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| Authors: | Ning Wang Jun Chen Qi Zhou Lianzhou Jiang Liqi Wang Yingjie Dai Dianyu Yu Walid Elfalleh |
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| Affiliation: | 1. School of Food Science, Northeast Agricultural University, Harbin, 150030 China;2. School of Computer and Information Engineering, Harbin University of Commerce, Harbin, 150028 China;3. School of Water Resources and Civil Engineering, Northeast Agricultural University, Harbin, 150030 China;4. Laboratoire Energie, Eau, Environnement et Procédés, (LEEEP), Ecole Nationale d'Ingénieurs de Gabes, Université de Gabes, Gabes, 6072 Tunisia |
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| Abstract: | Crude wax extracted from rice bran oil (RBO) is used to improve the oleogel properties and oxidative stability of RBO. The effect of crude rice bran wax (CrBW) on the formation characteristics and oxidative stability of oleogels is discussed. The results show that oleogels can be formed with 7.0 wt% CrBW at 20 °C. As the concentration of CrBW increases from 7.0 to 11.0 wt%, the hardness and solid fat content (SFC) of the oleogels increase significantly, and the oleogels are primarily β' crystals. Moreover, oleogel crystals formed with 5 and 7 wt% CrBW are flocculent; when the amount included is 9%, the oleogel crystals are transformed into long dendrites, and the density rises. After 90 days of storage at 20 °C, the peroxide value of oleogels formed with 9.0 wt% CrBW slowly rises from 3.21 to 6.52 mmol kg−1. Practical Applications: Oleogels prepared here by CrBW and RBO are an innovative structural lipid without trans fats. Useful information on the rich fats and nutrients in CrBW is provided, which reduces the production cost and improves the industrial production capacity. |
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| Keywords: | β'crystals crude rice bran wax oleogels oxidative stability rice bran oil |
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