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. Author manuscript; available in PMC: 2008 Nov 14.
Published in final edited form as: Am J Physiol. 1999 Sep;277(3 Pt 1):G653–G661. doi: 10.1152/ajpgi.1999.277.3.G653

Table 1.

CEL activity and quantitation in mouse milk

Sample Activity, pmol·min−1·µg−1 CEL Concentration, ng CEL/µg whey protein
Activity was measured by the release of [14C]oleate from cholesteryl-[14C]oleate in the presence of bile salt and BSA. Calculation of the mass of carboxyl ester lipase (CEL) present was based on comparison with the purified CEL standard. Values are averages of duplicates performed on 3 different concentrations of enzyme or whey protein. Protein was determined by Lowry assay.
Purified CEL 8,889
Milk
 #1 65 7
 #2 394 44
 B6 145 16
 2d 596 67
 14d 277 31