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dc.contributor.authorKarnik, Deepika Arun
dc.date.accessioned2014-03-04T20:59:16Z
dc.date.available2014-03-04T20:59:16Z
dc.date.issued2012-12
dc.identifier.otherkarnik_deepika_a_201212_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/karnik_deepika_a_201212_ms
dc.identifier.urihttp://hdl.handle.net/10724/28542
dc.description.abstractSugar beet pectin (SBP) has good emulsifying capacity but does not provide good stability as compared to gum arabic. It was thus fractionated using successive isopropanol increments to produce fractions (F1-F6), unique with respect to protein, ferulic acid, uronic acid, relative fluorescence intensity, particle size, ζ-potential and % degree of esterification. Unfractionated SBP was used as control. F1 and F4 were high (209±13 µg/mg alcohol insoluble solids (AIS); 93±20 µg/mg AIS) and low (77±9 µg/mg AIS; 14±6 µg/mg AIS) respectively in protein and ferulic acid. The surface hydrophobicity (S₀) was nearly 1.3 to 230 times higher in F1 than control or F4, respectively. Thus lower amount of isopropanol produced fractions with greater S₀. Medium chain triglyceride (MCT) emulsions showed lower D[4,3] values with F4 (0.67-0.93 µm) as compared to F1 (1.28-1.42 µm) and thus there was no simple relationship between protein content and emulsifying properties. The emulsions were also analyzed for rheological properties.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectSugar beet pectin
dc.subjectIsopropanol
dc.subjectFractionation
dc.subjectProtein
dc.subjectFerulic acid
dc.subjectUronic acid
dc.subjectParticle size
dc.subjectZeta Potential
dc.subjectSurface hydrophobicity
dc.subjectEmulsions
dc.subjectMedium chain triglyceride
dc.titleStructure-function characterization of fractionated sugar beet pectin
dc.typeThesis
dc.description.degreeMS
dc.description.departmentFood Science and Technology
dc.description.majorFood Science
dc.description.advisorLouise Wicker
dc.description.committeeLouise Wicker
dc.description.committeeRakesh Singh
dc.description.committeeCasimir Akoh


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