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投稿时间：2016-06-22
投稿时间：2016-06-22
中文摘要: 用蒸馏水浸提平卧菊三七中的多糖成分，分别以提取温度、提取时间、料液比和提取次数为主要影响因素，采 用 L9（34）正交试验设计进行提取工艺的优化。结果表明各因素对平卧菊三七多糖得率的影响程度依次为提取温度>料 液比>提取时间>提取次数。通过正交试验及其验证试验确定其最佳提取工艺为提取温度 100 ℃，提取时间 3 h，料液 比 4 ∶ 100（g/mL），提取次数 2 次。在此条件下，平卧菊三七多糖得率可达 19.88 %。
Abstract:Polysaccharides were extracted from Gynura procumbens with distilled water as solvent in this arti－ cle. Extraction temperature， extraction time， solid-liquid ratio and extraction times were chosen as four main influence factors， and then extraction conditions were optimized with L9（34） orthogonal test. The results indicat－ ed that the influence level of them was extraction temperatures > solid-liquid ratio > extraction time > extraction times， respectively. The optimal extraction conditions were proved to be extraction temperature of 100 ℃， ex－ traction time of 3 h， solid-liquid ratio of 4 ∶ 100（g/mL） and extraction times of twice by the orthogonal test and its verification test. Under this condition， the yield of Gynura procumbens polysaccharides was 19.88 %.
文章编号：201705025 中图分类号： 文献标志码：A
基金项目:江西省教育厅科学技术研究项目（GJJ150433）；南昌大学 食品科学与技术国家重点实验室开放基金（SKLF-KF-201601）
| Author Name | Affiliation |
| LI Jing-en， PENG Gui-chun， ZHENG Guo-dong* | College of Food Science and Engineering， Jiangxi Agricultural University， Nanchang 330045，Jiangxi， China |
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