%0 Journal Article %A CHEN Xiao-Yin %A HE Nan %A LIU Yan %A XIE Rui %A YANG Li-Li %A ZHANG Ji %T Extraction Process Optimization of Inulin from Helianthus tuberosus L. by Response Surface Methodology %D 2016 %R 10.7525/j.issn.1673-5102.2016.04.020 %J Bulletin of Botanical Research %P 627-633 %V 36 %N 4 %X Single-factor tests and response surface method (RSM) were used to optimize the extraction process of Helianthus tuberosus L. inulin in tubers.In order to obtain the maximum of extraction yield of the inulin, three main factors including liquid-solid ratio, extraction times and extraction temperature were selected with the Design Expert V8.0 design, and a quadric regression equation for predicting the yield of inulin was established. The results showed that the optimum extraction conditions were as follows:liquid-solid ratio of 18:1(mL·g-1), extraction time of 41 min and extraction temperature of 85℃. Under the conditions, the optimum extracting yield of inulin was 40.56%, which is well matched with the predictive extracting yield of 40.74%. Under the process, we carried out the rough inulin and analyzed extraction of the inulin by infrared spectrum with the simple and low cost process. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2016.04.020