Study on inhibition kinetics of peroxidase from Lonicera Japonica Thunb
CSTR:
Author:
Affiliation:

(1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China; 2. Henan Agricultural Products Drying Equipment Engineering Technology Research Center, Luoyang, Henan 471023, China)

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    In order to purify honeysuckle peroxides and study the enzymatic properties and inhibition kinetics,DEAE cellulose DE-52 ion exchange chromatography was used for purification of peroxidase from Lonicera Japonica Thunb prepared preliminarily by three-phase partitioning. Two kinds of peroxidase, HSPⅠ(honeysuckle peroxidaseⅠ)and HSPⅡ(honeysuckle peroxidaseⅡ), were purified,the specific activity were 3 312.3 U/mg and 564.8 U/mg respectively. The double substrate enzymatic reaction type was PingPong reaction analyzed by the reaction kinetics. Citric acid, Sodium metabisulfite showed irreversible inhibition to Lonicera Japonica Thunb peroxidase, L-cysteine showed reversible inhibition, and L-cysteine was a competitive inhibitor that the inhibition constant KI was 0.053 mmol/L.

    Reference
    Related
    Cited by
Get Citation

罗磊,董金龙,朱文学,等.金银花过氧化物酶抑制动力学研究[J].食品与机械英文版,2017,33(7):111-116.

Copy
Related Videos

Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:
  • Revised:
  • Adopted:
  • Online: March 10,2023
  • Published:
Article QR Code