不同材料固定化柚苷酶的比较
CSTR:
作者:
作者单位:

(1.中南大学 研究生院隆平分院, 湖南 长沙 410125;2.中南大学 资源加工与生物工程学院, 湖南 长沙 410083;3.柑橘资源综合利用国家地方联合工程实验室/湖南省农产品加工研究所, 湖南 长沙 410125)

作者简介:

段志涛,男,硕士研究生,研究方向为农产品加工及贮藏工程; *单 杨,男,研究员,博士,主要从事农产品加工及贮藏方面的研究。通信作者。

通讯作者:

中图分类号:

基金项目:

湖南省科技领军人才培养项目(2013RS4078)。 


Comparative Study of Different Materials Immobilized Naringinase
Author:
Affiliation:

(1.Longping Branch Graduate School, Central South University, Changsha 410125, China;2.School of Resource Process and Bioengineering, Central South University, Changsha 410083, China;3.Citrus Resources Comprehensive Utilization of Local and National Joint Project Laboratory/ Hunan Agricultural Product Processing Institute, Changsha 410125, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    选取壳聚糖、海藻酸钠、活性炭和氧化石墨烯对柚苷酶进行固定化,比较不同材料对柚苷酶的载酶率和固定化酶活,得到较佳的固定化材料为氧化石墨烯,其载酶率达85.61%,酶活达410.50U/g,重复使用7次后仍能保持72.38%的相对酶活。同时研究了不同条件对氧化石墨烯固定化柚苷酶催化活性影响,得到较佳的固定条件:载酶量为每克氧化石墨烯材料承载60mg柚苷酶,固定化温度为20℃,pH值为4.0,固定化吸附时间为9h,优化后氧化石墨烯固定化柚苷酶的酶活为433.70U/g,重复使用7次后仍保留78.62%的酶活。

    Abstract:

    Chitosan, sodium alginate, activated carbon,and graphene oxide were selected to immobilizenaringinase. By comparing the activities of immobilized naringinase and the enzyme-carrying rates of the enzyme carriers, it was found that graphene oxide was the optimal material. The enzyme-carrying rate of graphene oxide was 85.61% and theenzyme activity of graphene oxide immobilized naringinase was 410.50U/g. The enzyme activity remained 72.38% relative activity after 7 times using. Simultaneously, the effects of different conditions on catalytic activity of graphene oxide immobilized naringinase were studied. It was obtained that the optimal load amount of naringinase per gram of graphene oxide 60mg, optimal temperature 20℃, optimal pH 4.0, and immobilization adsorption time 9h. The activity of graphene oxide immobilized naringinase reached 433.70U/g under the optimized conditions, which remained 78.62% relativity activity after 7 times using.

    参考文献
    相似文献
    引证文献
引用本文

段志涛,夏金兰,单 杨.不同材料固定化柚苷酶的比较[J].食品科学技术学报,2015,33(3):43-48.

复制
分享
相关视频

文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2015-05-29
  • 出版日期:
文章二维码