正交实验优化提取洋葱皮中阿魏酸工艺的研究

Journal of Shandong Agricultural University(Natural Science Edition)(2013)

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Abstract
研究采用超高压提取洋葱皮中阿魏酸的最佳工艺条件,并且同回流提取法和超声提取法进行比较。在单因素实验的基础上,采用L9(34)正交实验对超高压提取洋葱皮中阿魏酸的工艺进行优化,以阿魏酸的得率为指标,考察料液比(g:mL)、乙醇浓度、超高压压力、加压时间对阿魏酸得率的影响。得到优化的工艺条件为:固液比1:22、乙醇浓度75%、超高压压力320 MPa,超高压时间4 min,该条件下阿魏酸的得率可达0.322%。超高压提取阿魏酸得率高,提取时间短,是一种提取洋葱皮中阿魏酸的适宜方法。
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Key words
Ultra high pressure,extraction,Allium cepa L.,ferulic acid
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