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Esterification of starch and synthesis of infant formula fat analogous was carried out to expand the usefulness of industrial
applications. Lipase obtained from
was used for esterification: modification of maize starch with oleic acid
as a acyl donors. Reactions performed with oleic acid by liquid-state gave a degree of, substitution (DS) 46.06% (DS 0.48),
respectively. Thermogravimetric analysis showed that onset of decomposition is at a higher temperature (above 600
modified starch than the unmodified starch (280
C). Swelling power lowered for modified starch as esterification renders starch
more hydrophobic, making it suitable for biomedical applications as materials for bone fixation and replacements, carriers for
controlled release of drugs and bioactive agents. Another reaction of structured lipids containing palmitic acid, resembling
human milk fat (HMF), was synthesized. Under these conditions, the contents of palmitic acid (PA) and PA at sn-2 position (sn-2
PA) were 29.7 and 62.8%, respectively, and other observed FAs were all within the range of FAs of HMF. It can be concluded that
the potential use of the structured lipids produced in infant formulas provide energy source delivering a reduced calorie value
for new born, term and preterm infants. Unlike chemical esterification, enzymatic esterification is eco-friendly and avoids the
use of nasty solvents.
Vinod Kumar has been a student at University of Delhi South Campus. He is pursing Ph.D. in Microbiology, under the guidance of Prof. R. K.
Saxena at Department of Microbiology. His main research subject is to develop an Eco friendly system for Synthesis of bioactive molecules by
enzymatic method which important in industrial sector. He has published 6 papers in reputed journals and papers presented in National/International
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