Page 133 - 《精细化工》2022年第9期
P. 133
第 39 卷第 9 期 精 细 化 工 Vol.39, No.9
2022 年 9 月 FINE CHEMICALS Sept. 2022
中药现代化技术
超声辅助离子液体提取人参多糖工艺
及其抗氧化活性
黄冬婷 1,2 ,黄俊生 1,2 ,汤静洁 1,2 ,张平军 1,2 ,黎 鹏 1,2*
(1. 广东省科学院生物与医学工程研究所,广东 广州 510316;2. 广东省绿色制糖工程技术研究中心,
广东 广州 510316)
摘要:采用超声辅助离子液体提取人参中的人参多糖,通过单因素实验和正交实验确定了人参多糖的最优提取
工艺条件;利用苯酚-硫酸法测定提取的人参多糖中总糖含量;以抗坏血酸为对照组,采用 1,1-二苯基-2-三硝基
苯肼自由基(DPPH•)、•OH、2,2′-联氮-二(3-乙基-苯并噻唑-6-磺酸)二铵盐自由基(ABTS•)测定提取的人参多
糖的抗氧化活性。结果表明,人参多糖的最佳提取工艺为:质量浓度为 8 g/L 的 1-己基-3-甲基咪唑溴盐水溶液
为提取溶剂,料液比(人参和离子液体水溶液之比)为 1∶40(g∶mL,下同),在 80 ℃下超声辅助提取 30 min,
人参多糖提取量为 172.89 mg/g,提取的人参多糖总糖含量(质量分数)为 65.9%。采用 HPLC 对纯化后的人参
多糖的单糖组成进行了测定,得到人参多糖的单糖主要成分为:甘露糖、核糖、半乳糖醛酸、葡萄糖、半乳糖、
阿拉伯糖、岩藻糖。人参多糖对 DPPH•和•OH 以及 ABTS•具有一定的清除力,其抗氧化能力随质量浓度的增大
而增强,但弱于抗坏血酸。
关键词:人参多糖;离子液体;超声提取;抗氧化性;中药现代化技术
中图分类号:R284.2 文献标识码:A
文章编号:1003-5214 (2022) 09-1851-08 开放科学 (资源服务) 标识码 (OSID):
Ultrasonic-assisted ionic liquid extraction of ginseng polysaccharide
and its antioxidant activity
1,2
1,2
1,2
1,2
HUANG Dongting , HUANG Junsheng , TANG Jingjie , ZHANG Pingjun , LI Peng 1,2*
(1. Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, Guangdong,
China; 2. Guangdong Province Engineering Research Center for Green Technology of Sugar Industry, Guangzhou 510316,
Guangdong, China)
Abstract: Ginseng polysaccharide was obtained from ginseng by ionic liquid-based ultrasonic assisted
extraction method, of which the extraction conditions were optimized via single factor and orthogonal
experiments. The total sugar content in ginseng polysaccharide was then determined by phenol sulfuric acid
method. Moreover, the antioxidant activity of ginseng polysaccharide was evaluated by scavenging
1,1-diphenyl-2-(2,4,6-trinitrophenyl)hydrazyl free radical (DPPH•), •OH and 2,2′-azinobis-(3- ethylbenzothiazoline-
6-sulphonate) (ABTS•) with those of ascorbic acid as control. The optimal extraction conditions of ginseng
polysaccharide were as follows: 1-hexyl-3-methylimidazolium bromide solution with a mass concentration
of 8 g/L as extraction solvent, material-to-liquid ratio (ratio of ginseng to aqueous solution of ionic liquid)
of 1∶40 (g∶mL, the same below), ultrasonic extraction time of 30 min and extraction temperature of 80
℃, under which the amount of ginseng polysaccharide extracted reached 172.89 mg/g. The total sugar
content (mass fraction) in ginseng polysaccharide was 65.9%, while mannose, ribose, galacturonic acid,
glucose, galactose, arabinose and fucose were found to be the main components of monosaccharide by
收稿日期:2021-12-29; 定用日期:2022-06-09; DOI: 10.13550/j.jxhg.20211332
基金项目:广东省科学院发展专项资金项目(2020GDASYL-20200103069);揭阳市科技计划项目(2019089)
作者简介:黄冬婷(1992—),女,工程师,硕士,E-mail:719584029@qq.com。联系人:黎 鹏(1992—),女,博士,E-mail:
lipeng_1992@foxmail.com。