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目的:研究安息香总香脂酸的最佳提取工艺。方法:以总香脂酸含量为指标,采用L9(34)正交试验法考察氢氧化钠溶液(Na OH)浓度、溶媒量、提取时间对安息香总香脂酸提取工艺的影响。结果:除提取时间外,Na OH浓度、溶剂量对其工艺有显著性影响,为主要因素。确定最佳工艺条件为15倍0.75 mol·L-1的氢氧化钠溶液回流提取1h。结论:该优选的提取工艺工艺科学合理,稳定可靠,提取效率高。
Objective: To study the best extraction process of benzoic acid. Methods: The total lipogenic acid content as an indicator, using L9 (34) orthogonal test sodium hydroxide solution (Na OH) concentration, the amount of solvent, extraction time on the total benzoin benzoic acid extraction process. Results: In addition to the extraction time, Na OH concentration and solvent volume have a significant impact on the process, as the main factor. The optimum process conditions were determined to be 15 times 0.75 mol·L-1 sodium hydroxide solution for 1 h. Conclusion: The optimal extraction process is scientific and reasonable, stable and reliable, and has high extraction efficiency.