scholarly journals Role of Plasma Protein and Low-Molecular Weight Substances in the Change of Hydroxyl Radical Scavenging Activity in Hemodialysis Patients

2008 ◽  
Vol 42 (2) ◽  
pp. 111-117 ◽  
Author(s):  
Akiko Hirakawa ◽  
Kazumasa Aoyagi ◽  
Motoo Nakajima ◽  
Syuichi Kikuchi ◽  
Syoji Ohba ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hydroxyl Radical ◽  
Plasma Protein ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Hemodialysis Patients ◽  
Low Molecular Weight ◽  
Scavenging Activity ◽  
Hydroxyl Radical Scavenging Activity

scholarly journals Study on the Hydroxyl Radical Scavenging Activity Changes of Ginseng and Ginsenoside-Rb2 by Heat Processing

2007 ◽  
Vol 30 (4) ◽  
pp. 724-728 ◽  
Author(s):  
Ki Sung Kang ◽  
Hyun Young Kim ◽  
Seung Hoon Baek ◽  
Hye Hyun Yoo ◽  
Jeong Hill Park ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Heat Processing ◽  
Scavenging Activity ◽  
Hydroxyl Radical Scavenging Activity ◽  
Ginsenoside Rb2

The Radical Scavenging Activity of Protein Hydrolysates Prepared from Mercenariamercenaria and Ruditapesphilippinarum

2011 ◽  
Vol 361-363 ◽  
pp. 748-752 ◽  
Author(s):  
Jiao Jiao Mu ◽  
Qian Cheng Zhao ◽  
Jian Wei Li
Keyword(s):  
Molecular Weight ◽  
Hydroxyl Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Mercenaria Mercenaria ◽  
Ruditapes Philippinarum ◽  
Protein Hydrolysates ◽  
Scavenging Activity ◽  
Dpph Radical ◽  
Enzymatic Methods

The Mercenaria mercenaria protein hydrolysates (MMPH) and Ruditapes philippinarum protein hydrolysates (RPPH) were prepared by three enzymatic methods, and the radical scavenging activity of the protein hydrolysates was analyzed. The results showed that the protein hydrolysates prepared by the combination of Protamex and Flavourzyme exhibited significant radical scavenging activity; For DPPH radical, the EC50values of MMPH and RPPH were 33.0 mg/mL and 93.0 mg/mL, respectively, and for hydroxyl radical, the EC50values of the protein hydrolysates were 7.5 mg/mL and 7.0 mg/mL, respectively; The protein hydrolysates were further fractionated by ultrafiltration membrane of 6000 Da, and the radical scavenging activity of the resultant fraction with lower molecular weight (<6000 Da) was significantly (P<0.05) increased, and for DPPH radical, the EC50values of MMPH and RPPH fractions were 29.5 mg/mL and 58.5 mg/mL, respectively, and for hydroxyl radical, the EC50 values of the fractions were 6.0 mg/mL and 7.0 mg/mL, respectively.

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