15714
A validated in vitro digestion was eventually set up for the salivary step ( pH 6 . 9 , 5 min , 3 . 9 units alpha - amylase / ml ) , the gastric step ( pH 2 , 90 min , 71 . 2 units pepsin / ml ) , and the abiotic duodenal step ( pH 7 , 150 min , 9 . 2mg pancreatin and 55 . 2mg bile extract / ml ) .
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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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