An Application of Electron Beam Irradiation for Improving the Peptide Antioxidant Activity and Changing the Microcosmic Surface Morphology

2015 ◽  
Vol 1094 ◽  
pp. 11-14
Author(s):  
Xing Fang Li ◽  
Song Yi Lin ◽  
Zuo Zhao Wang

Electron beam irradiation is a chemical technology which mainly applies to food irradiation preservation, radiation sterilization of medical supplies, radiation chemistry and so on. It can change the molecular structure by using the radioactive radiation. In this present study, soybean protein concentrate powder was treated by electron beam irradiation to investigate its effects on the DH, the peptide antioxidant activity and the microcosmic surface morphology. The results indicated that the electron beam irradiation did not have effect on the DH. However, the peptide antioxidant activity significantly increased when increasing the irradiation dose. The highest peptide antioxidant activity 56.84 % was obtained at 3.24 kGy. Scanning electron microscope (SEM) revealed that there were a number of changes to the microcosmic surface morphology after the electron beam irradiation. Not only the shape of the soybean protein concentrate powder particles was changed, but the surface state was changed as well.

2008 ◽  
Vol 77 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Jong-Wan Kim ◽  
Byung Cheol Lee ◽  
Jong-Hwa Lee ◽  
Ki-Chang Nam ◽  
Seung-Cheol Lee

2020 ◽  
Vol 11 (1) ◽  
pp. 871-882 ◽  
Author(s):  
Xinxia Zhang ◽  
Li Wang ◽  
Zhengxing Chen ◽  
Yongfu Li ◽  
Xiaohu Luo ◽  
...  

This research focused on the effects of electron beam irradiation (EBI) on the hydrolysis and antioxidant activity of rice proteins (RPs).


2015 ◽  
Vol 179 ◽  
pp. 6-14 ◽  
Author(s):  
Amanda Koike ◽  
João C.M. Barreira ◽  
Lillian Barros ◽  
Celestino Santos-Buelga ◽  
Anna L.C.H. Villavicencio ◽  
...  

2013 ◽  
Vol 678 ◽  
pp. 229-233 ◽  
Author(s):  
C. Vijil Vani ◽  
K. Karuppasamy ◽  
N. Ammakutty Sridevi ◽  
S. Balakumar ◽  
X. Sahaya Shajan

The effect of electron beam irradiation on electrical, thermal, mechanical and morphological properties of plasticized polymer electrolytes was investigated. A significant improvement in the mechanical strength without reduction in ionic conductivity was observed for the irradiated polymer electrolytes. DSC studies showed that the thermal behavior of the polymer electrolytes was improved by the addition of filler and by irradiation. SEM studies revealed a significant improvement in surface morphology of the polymer electrolyte after irradiation. The results are presented herein.


2014 ◽  
Vol 22 ◽  
pp. 158-166 ◽  
Author(s):  
Ângela Fernandes ◽  
João C.M. Barreira ◽  
Amilcar L. Antonio ◽  
M. Beatriz P.P. Oliveira ◽  
Anabela Martins ◽  
...  

2011 ◽  
Vol 328-330 ◽  
pp. 1594-1597 ◽  
Author(s):  
Hong Wei Yu ◽  
Hui Wu Yuan ◽  
Yuan Sheng Wang ◽  
Zheng Wei

Different doses of electron beam was imposed on polyacrylonitrile(PAN) precursor fibers before the fibers were stabilized. The effect of electron beam irradiation on the chemical structure, orientation degree, surface morphology and tensile properties of PAN precursor fibers were characterized by use of fourier transform infrared spectroscopy (FTIR), tensile test and scanning electron microscope (SEM), respectively. The results showed that the extent of cyclization and orientation degree was increased firstly and decreased later. The surface morphology of PAN precursor fibers was smoother when the irradiation doses 150kGy and 200kGy. Tensile strength of the fibers was increased first and decreased later. The change of tensile strength might be in correlation with the changes of extent of cylization, orientation factor and surface morphology.


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