6572
Alteration in structure of Ara h 6 was characterised by circular dichroism ( CD ) spectroscopy , ultraviolet ( UV ) absorption spectroscopy , fluorescence spectroscopy and SDS - PAGE , and antigenicity was evaluated by immunoblotting and indirect ELISA with anti - Ara h 6 polyclonal antibody .
 Chemical: SDS
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: SDS