9837
Both the bovine and porcine mucin fibers adhered onto the oral cells : Due to the different morphology of bovine mucin , the viability of the oral cells decreased , whereas porcine mucin maintained the viability of the model for more than 48h .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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