Abstract
The lingual lipase in gastric aspirates from premature infants was found to be partially stereospecific forsn-3 esters of synthetic enantiometric triacylglycerols containing 18∶1 and 16∶0. Thesn-3 ester was hydrolyzed about 4 times faster than the acid at thesn-1 position with no difference in rates between 18∶1 and 16∶0. Thesn-2 was also hydrolyzed to some extent.
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Abbreviations
- TG:
-
triacylglycerol
- DG:
-
diacylglycerol
- MG:
-
monoacylglycerol
- FFA:
-
free fatty acids
- sn-18∶1–16∶0–16∶0:
-
1-oleoyl-2,3-dipalmitoyl-sn-glycerol
- sn-16∶0–16∶2-18∶1:
-
1,2-dipalmitoyl-3-oleoyl-sn-glycerol
- andsn-16∶0–18∶1–18∶1:
-
1-palmitoyl-2,3-dioleoyl-sn-glycerol
References
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Scientific contribution no. 949, Storrs Agricultural Experiment Station, University of Connecticut, Storrs, Ct 06268.
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Jensen, R.G., Dejong, F.A., Clark, R.M. et al. Stereospecificity of premature human infant lingual lipase. Lipids 17, 570–572 (1982). https://doi.org/10.1007/BF02535386
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DOI: https://doi.org/10.1007/BF02535386