丁香叶中总酚酸提取工艺的研究

Study on the Extraction Process of Protocatechuic Acid from Lilac Leaves

目的优化丁香叶的提取工艺,旨在为更好的提取丁香叶中的总酚酸提供理论依据和数据参考。方法用正交试验设计安排试验,用水提醇沉法以提取液中的原儿茶酸为考察指标,以加水倍量、提取次数和提取时间为考察因素,优选提取工艺。结果丁香叶采用8倍量水,提取两次,每次1小时可将丁香叶中的总酚酸基本提出。结论本方法操作简单,工艺稳定,可靠。

Objective To optimize the extraction process of lilac leaves in order to provide a theoretical basis and reference data for a better extraction of total acid in lilac leaves.Methods Through using orthogonal experimental design,and with the indicators of alcohol extract method,the present study optimized the extraction process with the inspection factors of the volume of water times,extraction time and extraction number.Results All total acid in lilac leaves could be basically extracted under the circumstances of 8 times the volume of water,extracted twice,and one hour each time.Conclusions The method is simple with a stable and reliable process.