23680
The 50 kDa fraction contains 56 % of proteins , 3 % of lipids and 6 % of minerals on a dry weight basis and the lowest levels detected of taurine and methionine and highest levels of threonine , proline and glycine amino acids .
 Chemical: taurine; Chemical: methionine; Chemical: threonine; Chemical: proline; Chemical: glycine; Chemical: amino acids
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: taurine; Chemical: methionine; Chemical: threonine; Chemical: proline; Chemical: glycine; Chemical: amino acids