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Lipase-catalyzed Reactions at Interfaces of Two-phase Systems and Microemulsions

Pedro Reis (Institutionen för kemi- och bioteknik, Teknisk ytkemi) ; R. Miller ; M. Leser ; H. Watzke
Applied Biochemistry and Biotechnology (0273-2289). Vol. 158 (2009), 3, p. 706-721.
[Artikel, refereegranskad vetenskaplig]

This work describes the influence of two polar lipids, Sn-1/3 and Sn-2 monopalmitin, on the activity of lipase in biphasic systems and in microemulsions. In previous communications, we have shown that Sn-2 monoglycerides can replace Sn-1,3 regiospecific lipases at the oil-water interface, causing a drastically reduced rate of lipolysis. We here demonstrate that even if the lipase is expelled from the interface, it can catalyze esterification of the Sn-2 monoglyceride with fatty acids in both macroscopic oil-water systems and in microemulsions, leading to formation of di- and triglycerides.

Nyckelord: Lipase, Esterification, Synthesis, Interface, surface dilational rheology, air/water interface, adsorption layers, fluid interfaces, protein films, dynamics, water, oil, monoglycerides, esterification



Denna post skapades 2010-02-26.
CPL Pubid: 115524

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Teknisk ytkemi (2005-2014)

Ämnesområden

Yt- och kolloidkemi

Chalmers infrastruktur