Effect of salt hydrate pairs for water activity control on lipase-catalyzed synthesis of lysophospholipids in a solvent-free system

Cited 24 time in webofscience Cited 0 time in scopus
  • Hit : 246
  • Download : 0
For the synthesis of biologically useful lysophospholipids with a desirable fatty acid an easy and simple synthetic approach was developed by lipase-catalyzed esterification of the glycerophosphoryl group with free fatty acid in a solvent-free system. Among the various parameters which govern the lysophospholipid synthesis, water activity (a(w)) was found to be an important factor. Salt hydrate pairs could act to buffer the optimal water level during the reaction. We investigated the effect of various salt hydrate pairs which were added directly into the reaction medium or put in the headspace of the reactor on the lysophospholipid synthesis in the solvent-free system. Optimal a(w) values for lysophosphatidic acid (LPA), lysophosphatidylethanolamine (LPE), and lysophosphatidylcholine (LPC) ar ere 0.18, 0.37, and 0.60, respectively, and these were controlled by the pairs of NaI (2 H2O-anhydrous), CH3COONa (3 H2O-anhydrous), Na4P2O7 (10 H2O-anhydrous), respectively. Control of a(w) was especially critical for LPE synthesis. When the a(w) of the reaction system was not controlled LPE was hardly formed. The yield of LPA, LPE, and LPC at their optimal a(w) values after 60 h were 45.3, 22.9, and 36.2%, respectively. (C) 1998 Elsevier Science Inc.
Publisher
Elsevier Science Inc
Issue Date
1998
Language
English
Article Type
Article
Keywords

ORGANIC MEDIA; LYSOPHOSPHATIDIC ACID; PEPTIDE-SYNTHESIS

Citation

ENZYME AND MICROBIAL TECHNOLOGY, v.22, no.3, pp.158 - 164

ISSN
0141-0229
URI
http://hdl.handle.net/10203/69278
Appears in Collection
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 24 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0