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·药学研究·

        伊贝母多糖的提取工艺优化及结构表征                                             Δ


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        阿衣吐逊·阿布都外力           1,2* ,帕尔哈提·柔孜 ,高彦华 ,排合尔丁·木台力甫 ,热合巴提·努尔夏提 ,宁慧霞 ,
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        阿布力米提·伊力 (1.中国科学院新疆理化技术研究所新疆特有药用资源利用重点实验室,乌鲁木齐
                          1 #
        830011;2.中国科学院大学,北京 100049;3.新疆农业大学食品科学与药学学院,乌鲁木齐 830052)
        中图分类号 R943;R629.12          文献标志码 A          文章编号     1001-0408(2020)03-0276-06
        DOI   10.6039/j.issn.1001-0408.2020.03.05

        摘   要   目的:优化伊贝母多糖(FPSP)的提取工艺,并对其结构进行研究。方法:采用Box-Behnken设计-响应面法,以FPSP产率
        为响应值,对FPSP提取工艺中的料液比、提取温度、提取时间进行优化。通过紫外吸收光谱法、傅里叶红外光谱(FTIR)法、气相
        色谱-质谱联用(GC-MS)法、刚果红染色法、扫描电子显微镜(SEM)观察、X射线衍射(XRD)法及热化学分析等表征手段对FPSP
        进行结构初探。结果:FPSP提取的最优工艺参数为料液比1∶28(g/mL)、提取温度94 ℃、提取时间2.5 h,产率为16.25%(n=3),与
        理论产率(16.58%)的误差为0.33%。FPSP是由物质的量之比为1∶58.02∶0.73的木糖、葡萄糖、半乳糖及微量甘露糖组成,在280 nm
        波长附近有弱吸收峰,属于α-构型的吡喃多糖,存在三螺旋结构,其表面呈显不规则颗粒堆积而成的网状结构,同时存在晶体与非
        晶体结构,具有较好的热稳定性。结论:优化后的FPSP提取工艺合理、产率较高,可为伊贝母资源的进一步开发利用提供参考。
        关键词     伊贝母多糖;Box-Behnken设计;响应面法;结构表征;提取工艺

        Study on Extraction Technology Optimization and Structural Characterization of Fritillaria pallidiflora
        Polysaccharides
        Ayituxun·Abuduwaili ,Paerhati·Rouzi ,GAO Yanhua ,Paiheerding·Mutailifu ,Rehebati·Nuerxiati ,NING
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        Huixia ,Abulimiti·Yili (1.Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization,
        Xinjiang Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Urumqi 830011,China;
        2. University of the Chinese Academy of Sciences,Beijing 100049,China;3.College of Food Science and
        Pharmacy,Xinjiang Agricultural University,Urumqi 830052,China)
        ABSTRACT    OBJECTIVE:To optimize the extraction technology of Fritillaria pallidiflora polysaccharides(FPSP),and to study
        its structure. METHODS:Using the yield of FPSP as response value,Box-Behnken design-response surface methodology was
        adopted to optimize solid-liquid ratio,extraction temperature and extraction time of FPSP extraction technology. Structural properties
        of FPSP was characterized by UV spectrum,FTIR,GC-MS,Congo red staining,SEM,XRD and thermogravimetric analysis.
        RESULTS:The optimal technology parameters of FPSP were solid-liquid ratio of 1 ∶ 28(g/mL),extraction temperature of 94 ℃,
        extraction time of 2.5 h;the yield of FPSP was 16.25%(n=3),the error of which to theoretical yield(16.58%)was 0.33%.
        FPSP contained xylose,glucose and galactose with a molar ratio of 1 ∶ 58.02 ∶ 0.73,and trace amount of mannose;there was a weak
        absorption peak near the wavelength of 280 nm;belonged to α-configuration pyranopolysaccharide. FPSP was in triple-helical
        structure. The surface of FPSP was a network structure formed by irregular particles. FPSP had both crystalline and amorphous
        structures. FPSP had good thermostability. CONCLUSIONS:The optimized extraction technology of FPSP is reasonable,and has
        high extraction yield. The research might provide reference for the further development and utilization of F. pallidiflora.
        KEYWORDS      Fritillaria pallidiflora polysaccharide; Box-Behnken design; Response surface methodology; Structural
        characterization;Extraction technology


            伊贝母(Fritillaria pallidiflora Schrenk)是多年生草      的干燥鳞茎,已收载于 2015 年版《中国药典》 及《新疆
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        本植物,属于百合科(Liliaceae)贝母属(Fritillaria)植物              药用植物志》 等。伊贝母中主要化学成分为生物碱 、
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            Δ 基金项目:国家自然科学基金联合基金重点支持项目(No.                   甾体皂苷 、蛋白 、多糖 等。有研究表明,伊贝母具有
        U1403201);中科院西部之光-西部青年学者 A 类项目(No.2017-             清热、润肺、止咳、化痰、解毒等功效;能够治疗支气管
        XBQNXZ-A-004)                                       炎、肺结核、咳喘、痰喘、胃溃疡、十二指肠溃疡、黄疸、痈
            *博士研究生。研究方向:天然产物的提取分离及活性成分筛选。
                                                            肿及疮毒等疾病       [7-9] 。
        电话:0991-3835708。E-mail:ayituxunabuduwaili14@mails.ucas.ac.cn
                                                                大量研究表明,天然药用植物来源的多糖具有多种
            # 通信作者:研究员,博士,博士生导师。研究方向:天然药物物
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        质基础。电话:0991-3835708。E-mail:abu@ms.xjb.ac.cn         生物活性,包括抗氧化 、抗肿瘤 、降血糖 、抑菌 、
        ·276  ·  China Pharmacy 2020 Vol. 31 No. 3                                   中国药房    2020年第31卷第3期
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