17209
In this study , the thiol - containing peptides derived from computer - aided simulation of pepsin hydrolysis of dioscorin , namely , KTCGNGME ( diotide1 ) , PPCSE ( diotide2 ) , CDDRVIRTPLT ( diotide3 ) , KTCGY ( diotide4 ) , and PPCTE ( diotide5 ) were synthesized to compare their antioxidant activities with GSH and / or carnosine by examining hydroxyl radical scavenging activity by electron spin resonance spectrometry , anti - low - density lipoprotein peroxidation , anti - AAPH - induced hemolysis , and oxygen radical absorbance capacity activity .
 Chemical: thiol; Chemical: dioscorin; Chemical: GSH; Chemical: carnosine; Chemical: hydroxyl; Chemical: AAPH; Chemical: oxygen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: thiol; Chemical: dioscorin; Chemical: GSH; Chemical: carnosine; Chemical: hydroxyl; Chemical: AAPH; Chemical: oxygen