26576
As the concentration of beta - carotene increased from 0 to 10 , 100 , and 1000 mu M , the oxidative stability of samples containing chlorophylls decreased in a concentration - dependent manner under light , indicating that beta - carotene acted as a prooxidant .
 Chemical: beta - carotene; Chemical: chlorophylls; Chemical: beta - carotene
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: beta - carotene; Chemical: chlorophylls; Chemical: beta - carotene