13456
Algal antioxidants , including catalases ( CAT ) , peroxidases ( POD ) , superoxide dismutases ( SOD ) , and glutathione ( GSH ) , were all stimulated by the ROS burst .
 superoxide, glutathione, GSH
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 superoxide, glutathione, GSH