21731
In this study , gamma - glutamyl transpeptidase ( GGT ) and l - cysteine sulphoxide lyase ( C - S lyase ) were purified from the fruiting body of Lentinula edodes in three steps and then characterised .
 Chemical: gamma - glutamyl; Chemical: l - cysteine sulphoxide
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: gamma - glutamyl; Chemical: l - cysteine sulphoxide