15395
This paper investigates polyphenol oxidase ( PPO ) activity , reduced weight percentage after sun drying , and the changes in colour and appearance of green pepper ( Piper nigrum Linnaeus ) berries after blanching and sun drying .
 Chemical: polyphenol
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: polyphenol