丁香挥发油理化性质、提取工艺参数与其芳香水稳定性的相关性研究

目的采用改进的挥发油提取器提取丁香乳化芳香水,研究不同冷凝温度与不同收集温度下所得乳化芳香水的稳定性及不同温度下丁香挥发油的理化参数与乳化芳香水稳定性的相关性,为丁香挥发油的提取工艺参数的优化提供指导。方法应用表面张力测定仪、乌氏黏度计等测定不同温度下的丁香挥发油的密度、黏度、表面张力、界面张力,并应用稳定性分析仪测定不同提取温度、收集温度下提取所得的乳化芳香水1 h内的稳定性及其粒径,应用多元数据分析分别研究挥发油提取工艺参数、理化性质与乳化芳香水稳定性之间的关系。结果随温度的升高丁香挥发油的相对密度、黏度、表面张力逐渐降低,界面张力呈现先升高后下降的趋势。丁香芳香水的稳定性动力学指数(TSI)与界面张力及冷凝温度呈负相关,与收集温度、密度、黏度、表面张力呈正相关。结论提取过程中收集温度、界面张力及冷凝温度对丁香挥发油与芳香水的稳定性有一定的相关性,可通过控制收集温度、冷凝温度、界面张力来改变挥发油乳化芳香水的油水分离速度,对其提取工艺提供指导。

Correlation of parameters of technology and physicochemistry with fragrance water stability in volatile oil of Caryophylli Flos

Objective Using the improved volatile oil extractor to extract the essential oil of Caryophylli Flos and emulsified fragrance water. To research the correlations of the emulsified fragrance water from different condensing temperature and different temperature with the physicochemical parameters under the different temperature of essential oil in Caryophylli Flos; The results help a lot for the optimization of extraction process parameters of essential oil in Caryophylli Flos. Methods Using surface tension tester, determination of viscometer to measure viscosity, surface tension, interfacial tension under different temperature of essential oil density in Caryophylli Flos, using stability analyzer to determine the emulsified fragrance water stability within 1 h and particle size under different extraction temperature and different collecting temperature. Using multivariate data analysis to research the relationship between the essential physical and chemical parameters with emulsified fragrance water stability. Results Relative density, viscosity, and surface tension reduced as the temperature of essential oil in Caryophylli Flos increased gradually, interfacial tension with increased first and then decreased as temperature increased. Turbiscan Stability Index (TSI) of the volatile oil emulsified fragrance water was negative correlation with the condensation temperature and interfacial tension, and was positive correlation with collecting temperature, density, viscosity, and surface tension. Conclusion During the extraction process, temperature, interfacial tension, and condensation temperature of volatile oil in Caryophylli Flos were collected with aromatic water, and TSI has certain relevance. Through controlling the collected temperature, condensation temperature, interfacial tension, and oil/water separation speed of volatile oil emulsified fragrance water have been changed and the guidance to the extraction process has been provided.