4471
Anthocyanin degradation fitted a first - order reaction model and the rate constants ranged from 5 . 9 to 19 . 7 x 10 ( - 3 ) min ( - 1 ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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