Page 107 - 《精细化工》2020年第4期
P. 107
第 37 卷第 4 期 精 细 化 工 Vol.37, No.4
202 0 年 4 月 FINE CHEMICALS Apr. 2020
生物工程
栀子黄色素富集纯化对其抑制 LDL 氧化修饰的影响
1
曹亚楠 1,2,4 ,刘常金 1,2,4* ,韩世明 2,3,4 ,郑 威 ,郝 澍 2,4 ,江慎华 1,2,3,4*
(1. 天津科技大学 食品工程与生物技术学院 食品营养与安全国家重点实验室,天津 300457;2. 九江
学院 药学与生命科学学院,江西 九江 332000;3. 六盘水师范学院 生物科学与技术学院,贵州 六盘水
553004;4. 九江安德和生物科技有限公司,江西 九江 332000)
摘要:通过动态筛选方法确定栀子黄色素(Gardenia yellow pigment,GYP)最优吸附树脂,对其纯化工艺条件
进行优化及放大测试,并对 GYP 纯化前后性质及其抑制低密度脂蛋白(Low density lipoprotein,LDL)氧化修
饰进行了比较。结果表明,NKA 大孔树脂最适合富集纯化 GYP,最佳纯化条件为:上样液质量浓度 0.72 g/L、
流速 2 BV/h(BV 为床体积)、上样量 27 BV,分别用 7 BV 去离子水、9 BV 体积分数 15%乙醇水溶液洗杂,最
后用 3 BV 体积分数 80%乙醇以 2 BV/h 流速洗脱。在该条件下,纯化后的栀子黄色素(GYP-2)较纯化前栀子
黄色素(GYP-1)色价提高了 5.14 倍,栀子苷、绿原酸与栀子黄色素吸光度的比值(OD 1 、OD 2 )分别从 2.65、
1.01 降低到 0.69、0.684。该工艺放大后效率稳定、效果良好。不同浓度 GYP-1 能抑制 LDL 氧化且呈现良好的
量效关系。同等浓度 GYP-2 对共轭二烯(CD)、丙二醛(MDA)产生的抑制效果显著强于 GYP-1(P<0.01),
其减缓光谱红移、抑制 LDL 外观颜色及微观结构改变的效果也强于 GYP-1。
关键词:栀子黄色素;低密度脂蛋白;氧化修饰;大孔吸附树脂;分离纯化;生物工程
中图分类号:TS264.4 文献标识码:A 文章编号:1003-5214 (2020) 04-0741-11
Effect of gardenia yellow pigment enrichment and purification on
its inhibition of LDL oxidation modification
1
CAO Yanan 1,2,4 , LIU Changjin 1,2,4* , HAN Shiming 2,3,4 , ZHENG Wei ,
2,4
HAO Shu , JIANG Shenhua 1,2,3,4*
(1. State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin
University of Science & Technology, Tianjin 300457, China; 2. School of Pharmacy and Life Science, Jiujiang University,
Jiujiang 332000, Jiangxi, China; 3. School of Biological Sciences and Technology, Liupanshui Normal University,
Liupanshui 553004, Guizhou, China; 4. Jiujiang Andehe Biotechnology Co., Ltd., Jiujiang 332000, Jiangxi, China)
Abstract: The optimal macroporous adsorption resin for enrichment and purification of gardenia yellow
pigment (GYP) was determined by dynamic screening methods. The purification process conditions for
GYP were optimized and amplified. The properties of GYP before and after purification and its inhibition
effects on the low density lipoprotein (LDL) oxidation modification were compared. The results showed
that NKA macroporous resin was the most suitable resin for the enrichment and purification of GYP. The
optimal purification process conditions were that the mass concentration of sample was 0.72 g/L, flow rate
of sample was 2 BV/h (BV is bed volume), sample volume was 27 BV, the solutions for washing impurities
were 7 BV distilled water and 9 BV 15% (volumn fraction) ethanol, followed by desorption with 3 BV 80%
ethanol at 2 BV/h. The color value of the purified GYP (GYP-2) was 5.14 times higher than that of without
purification GYP (GYP-1). Compared with those of GYP-1, the absorbance ratio of geniposide and
chlorogenic acid to GYP (OD 1 and OD 2) decreased from 2.65 and 1.01 to 0.69 and 0.684 under the above
收稿日期:2019-06-23; 定用日期:2019-08-08; DOI: 10.13550/j.jxhg.20190580
基金项目:国家自然科学基金(31360371);江西省重点研发计划(20171BBF60049,20181BBH80010);江西省教育厅科技项目
(GJJ161081);江西省卫健委课题(2017B072);江西省天然产物与功能食品重点实验室开放基金资助项目(2015-05);六盘水特色果
树资源研究与利用重点实验室开放基金(52020-2017-02-03)
作者简介:曹亚楠(1994—),女,硕士生,E-mail:1530691990@qq.com。联系人:刘常金(1969—),男,副教授,E-mail:cjliu@tust.edu.cn;
江慎华(1973—),男,教授,E-mail:jiangshenhua66@163.com。