食品科学 ›› 0, Vol. ›› Issue (): 33-36.
• 工艺技术 • 上一篇 下一篇
沈佩琼1，孙丽君1，赵翔宇2，赵亚平1,*
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摘要： 以β-环糊精为载体，α-生育酚为模型物，采用超临界二氧化碳注入法制备α-生育酚/β-环糊精固体复合物。考察注入压力、注入温度和注入时间等参数对α-生育酚负载量的影响以及复合物在水相中的分散性。用紫外-分光光度法测定复合物的负载量，FTIR、DSC和TGA对复合物进行表征。结果表明：随着注入压力和温度的增加，α-生育酚的负载量先增大后减小，当温度35℃、压力18MPa、注入时间1h时，负载量最高达38.7%；制备的复合物能在水相中均匀分散。
关键词: 超临界二氧化碳注入法, α-生育酚, β-环糊精, 复合物
Abstract: The preparation of α-tocopherol/β-cyclodextrin complex by supercritical carbon dioxide impregnation technology was studied. The effects of process parameters, including pressure, temperature and reaction time on α-tocopherol loading and the disperability of α-tocopherol/β-cyclodextrin complex in water were studied. The determination of α-tocopherol loading was carried out using ultraviolet spectrophotometer, and FTIR, DSC and TGA were used for the characterization of α-tocopherol/β-cyclodextrin complex. The results showed that α-tocopherol loading first rose and then declined with increasing pressure and temperature, and reached up to 38.7% at 35 ℃, 18 MPa and impregnation time of 1 h, and that the prepared complex could disperse homogeneously in water.
Key words: supercritical CO2 impregnation technology, α-tocopherol, β-cyclodextrin, complex
沈佩琼1，孙丽君1，赵翔宇2，赵亚平1,*. 超临界二氧化碳注入法制备α-生育酚/β-环糊精复合物[J]. 食品科学, 0, (): 33-36.
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