| 姚云平,周航,刘文韬,等.米糠蜡凝胶油的微流变特性研究[J].中国油脂,2019,44(9):.[YAO Yunping, ZHOU Hang, LIU Wentao,etc.Microrheological properties of organogel formation by rice bran wax[J].China Oils and Fats,2019,44(9):.] |
| 米糠蜡凝胶油的微流变特性研究 |
| Microrheological properties of organogel formation by rice bran wax |
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| DOI： |
| 中文关键词: 凝胶油；弹性因子 固液平衡点 宏观黏度因子 流动因子 微流变特性 |
| 英文关键词:organogel elastic index solid-liquid balance macroscopic viscosity index flow index microrheological property |
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| 中文摘要: |
| 通过光学微流变仪研究了以米糠蜡和大豆油为原料制成的凝胶油的微流变特性，并与其他种类油脂的微流变特性进行了对比分析。结果表明：在低温（30?℃）时，米糠蜡的含量与凝胶油的弹性因子和宏观黏度因子呈正相关，而与固液平衡点和流动因子呈负相关；在高温（90?℃）时，米糠蜡的含量与凝胶油的弹性因子和固液平衡点呈负相关，与宏观黏度因子呈正相关，而与流动因子无关。在30?℃条件下，米糠蜡含量为2.5%~5%的凝胶油的弹性因子与鸡油、羊油、猪油和人造黄油接近，而米糠蜡含量为7.5%的凝胶油的弹性因子更接近于牛油。偏振光显微镜的结果进一步验证了低温时凝胶油的微流变特性。 |
| 英文摘要: |
| The microrheological properties of organogel prepared by rice bran wax and soybean oil were measured by optical microrheology, and compared with other oils and fats. The results showed that at low temperature (30?℃), the content of rice bran wax was positively correlated with the elastic index and macroscopic viscosity index of organogel, but negatively correlated with solid-liquid balance and flow index. At high temperature (90?℃), the content of rice bran wax was negatively correlated with the elastic index and the solid-liquid balance of organogel, and positively correlated with the macroscopic viscosity index, while it was independent of the flow index. At 30?℃, the elastic index of organogel with rice bran wax content of 2.5%- 5% was close to those of chicken oil, sheep oil, lard and margarine, and the elastic index of organogel with rice bran wax content of 7.5% was close to that of tallow. The results of polarized light microscopy further verified the microrheological properties of the organogel at low temperature. |
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