ISSN: 2155-9872
Journal of Analytical & Bioanalytical Techniques
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Microfluidic chip electrophoresis investigation of major milk proteins: Study of buffer effects and quantitative approaches
6th International Conference and Exhibition on Analytical & Bioanalytical Techniques
Fabiano Freire Costa
Federal University of Juiz de Fora, Brazil
Posters-Accepted Abstracts: J Anal Bioanal Tech
DOI:
Abstract
The separation and quantification of major milk proteins is fundamental in dairy research. Therefore, accurate and rapid methods are profoundly important. The microfluidic chip technique is faster, and uses considerably fewer chemicals and materials than traditional techniques. The objective of this study was to improve experimental methods for separating and quantifying major milk proteins using the microfluidic chip technique. Deionized water, a total protein solubilization buffer (TPS buffer) and a separating milk protein buffer (SEP buffer) were added for the treatment of milk samples and their effects were evaluated. The results showed an excellent separation for whey proteins with �?卤-lactalbumin migrating first, followed by �?虏-lactoglobulin in the presence of both buffers. However, better results for major casein separation were achieved when the SEP buffer was added. The order of the migration time was: �?虏-casein first, followed by �?卤s-casein and �?潞-casein. The quantitative analysis showed significant differences among the percentages of protein fractions from both buffers. The results using microfluidic chip technology using the SEP buffer solution were comparable to those obtained by SDS-PAGE for these proteins and with the data reported in the literature.Biography
Email: fabianofreirecosta@gmail.com
