Sugar fatty acid esters are nonionic surfactants, which are used for personal
care products, cosmetic applications, and as emulsifiers for food. In recent
years, enzymatic synthesis of sugar fatty acid esters is attracting keen attention
as a new
manufacturing method for future application. Some Reaction
parameters of lipase-catalyzed synthesis of SFAE in organic solvent were
optimized in a batch reactor. Optimum conditions for reaction performed were
10% (w/w of substrates) of lipase from Candida antarctica B, at 60°C. Among
the solvents tested in this study, the highest yield (93%) was obtained when
Aceton was used as a solvent,. The optimal sugar-to-fatty acid ratio was tested
in the range from 3:1 to 1:7 and verious sugars were used. A high conversion
was obtained when the ratio of Sugar: Fatty acid (1:5) and Froctuse were used
as substrat, respectively.
The present work was undertaken to study the properties and varations in
the activities of castor bean lipase under different condition.
Enzymes were extracted from dormant seed by phosphate buffer, then
characterizations were conducted.
Isolation and identification of Pseudomonas aeruginosa was screened from
15 samples of Syrian oily-soils to determine the ability to produce Lipase
enzyme by Cetermide Agar, Tributrin Agar and Brain Heart Broth during
2007-2008 AD. The results sho
wed that there were grown colonies with color of
green or yellow-green surrounded with different diameter of clear zone in three
samples and the identification by Mowasat Hospital revealed that it was
Pseudomonas aeruginosa In addition, the results showed that the optimum
conditions to produce lipase was 35 Cº with the pH degree of 8 and the time of
production of lipase with highest activity of 63.3% was three days in
submerged culture during the optimum conditions. These results illustrated the
important of this isolates to produce and control lipase for industrial
production.