|本期目录/Table of Contents|

[1]徐婷婷,王瑞,李莎,等.巯基化γ-聚谷氨酸微纳米纤维及其抗氧化性能[J].生物加工过程,2018,16(05):80-84.[doi:10.3969/j.issn.1672-3678.2018.05.011]
 XU Tingting,WANG Rui,LI Sha,et al.Thiol functionalized poly γ-(glutamic acid)micro/nano fibers and the antioxidant performance[J].Chinese Journal of Bioprocess Engineering,2018,16(05):80-84.[doi:10.3969/j.issn.1672-3678.2018.05.011]
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巯基化γ-聚谷氨酸微纳米纤维及其抗氧化性能()
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《生物加工过程》[ISSN:1672-3678/CN:32-1706/Q]

卷:
16
期数:
2018年05期
页码:
80-84
栏目:
出版日期:
2018-09-29

文章信息/Info

Title:
Thiol functionalized poly γ-(glutamic acid)micro/nano fibers and the antioxidant performance
文章编号:
1672-3678(2018)05-0080-05
作者:
徐婷婷王瑞李莎迟波徐虹
南京工业大学 食品与轻工学院 材料化学工程国家重点实验室,江苏 南京 211800
Author(s):
XU TingtingWANG RuiLI ShaCHI BoXU Hong
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University,Nanjing 211800,China
关键词:
巯基化 聚谷氨酸 微纳米纤维 抗氧化 生物功能材料
分类号:
R362
DOI:
10.3969/j.issn.1672-3678.2018.05.011
文献标志码:
A
摘要:
以L-半胱氨酸(L-Cys)巯基化的γ-聚谷氨酸(γ-PGA-SH)为原料,利用静电纺丝法制备γ-PGA-SH微纳米纤维,经过二硫键(S—S)键交联γ-PGA-SS纤维,并研究交联后γ-PGA-SS纤维抗氧化性能。结果表明:通过核磁共振氢谱、红外光谱分析,发现巯基化聚谷氨酸制备成功,且接枝率为55.6%; 扫描电子显微镜(SEM)分析发现,交联后γ-PGA-SS纤维直径由交联前γ-PGA-SH 纤维直径的800 nm增加到1 100 nm; 热重分析结果显示,交联后的γ-PGA-SS纤维热稳定性有所提高; 通过γ-PGA-SS的抗氧化性能研究发现,2 mg的γ-PGA-SS纤维还原能力为0.81(吸光度值),·OH清除率为62.19%,DPPH·清除率为85.84%。综上所述,γ-PGA-SH原料制备成功,并且交联后γ-PGA-SS微纳米纤维有很好的抗氧化性能。

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备注/Memo

备注/Memo:
收稿日期:2018-03-27修回日期:2018-04-18
基金项目:国家自然科学基金(31771049); 江苏省先进生物制造创新中心项目(XTB1804)
作者简介:徐婷婷(1993—),女,江苏徐州人,硕士研究生,研究方向:化学工程; 迟波(联系人),副教授,E-mail:chibo@njtech.edu.cn
引文格式:徐婷婷,王瑞,李莎,等.巯基化γ-聚谷氨酸微纳米纤维及其抗氧化性能[J].生物加工过程,2018,16(5):80-84.
XU Tingting,WANG Rui,LI Sha,et al.Thiol functionalized poly γ-(glutamic acid)micro/nano fibers and the antioxidant performance[J].Chin J Bioprocess Eng,2018,16(5):80-84..
更新日期/Last Update: 2018-09-30