Answer:
Dr. Akira Hirota, who is studying antioxidants, kindly answered the question above.
 
Dr Hirota noted, “My description is only guess, because I am not studying oxidizing reagents which are good for our body.” If you have any suggestions, please let us know.
 
 
Because we aerobe (gain energy by getting oxygen in air), we also receive the damage caused by active oxygen. Thus, it is thought that as a defense system we have enzymes such as SOD and catalase, reducing substances such as glutathione and cysteine, and we consume antioxidants (vitamin C, E and polyphenol, etc) as food.
 
However, it is necessary to control redox potential constantly in vivo. So oxidizing reagents would be necessary if redox potential in vivo proceeds too much toward a reduction condition. In this case, a large amount of oxygen would be consumed. Thus, “oxidizing reagents which are good for our body” can be considered to be “oxygen and compounds derived from oxygen”.
 
Anaerobes, such as anaerobic microorganisms, might have interesting “oxidizing reagents which are good for our body” other than oxygen (and compounds derived from oxygen).
 
 
Acknowledgement
Dr. Akira Hirota
Microorganisms have been used for food manufacturing such as sake, miso, and soy sauce from early times. Dr. Hirota is studying physiologically active substances which such microorganisms produce.
  
  

This article is translated by Chemistryquestion.com from the original article in Chemistryquestion.jp.  Please let us know if you find any errors.