15534
Secoiridoid derivatives are the most important antioxidants of virgin olive oil ( VOO ) , and their oxidation products could be used as molecular markers of VOO freshness to define the VOO autoxidation state .
 Chemical: Secoiridoid
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: Secoiridoid