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dc.contributor.authorRajasekar, Dhivyalakshmi
dc.date.accessioned2014-03-04T20:25:00Z
dc.date.available2014-03-04T20:25:00Z
dc.date.issued2011-12
dc.identifier.otherrajasekar_dhivyalakshmi_201112_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/rajasekar_dhivyalakshmi_201112_ms
dc.identifier.urihttp://hdl.handle.net/10724/27800
dc.description.abstractPomegranate (Punica granatum L.) juice is widely known for its potential health benefits. The juice was extracted using two methods, namely blender and mechanical press. Fourteen Georgia-grown pomegranate cultivars, harvested in 2009 were analyzed for juice yield, antioxidant capacity (Ferric Reducing Antioxidant Power, FRAP; Trolox Equivalent Antioxidant Capacity, TEAC; Oxygen Radical Absorbance Capacity, ORAC), total anthocyanins, total polyphenols, major sugars, organic acids, and individual phenolic compounds. Citric acid was the predominant acid, and glucose and fructose were the major sugars found. Cultivar Cranberry had the highest significant (p ≤ 0.05) total polyphenols and antioxidant capacity. Also, fifteen Georgia-grown pomegranates harvested in 2010 were investigated for their physico-chemical characteristics, juice yield, total anthocyanins, antioxidant capacity, total polyphenols, and individual anthocyanins. The major anthocyanin found was delphinidin-3-glucoside. Cultivar Kaj-acik-anor had the highest significant (p ≤ 0.05) total anthocyanin. Significant (p ≤ 0.05) differences among cultivars were observed. Positive correlations were found between total polyphenols and antioxidant capacity method, FRAP. Overall, blender was an efficient method of juice extraction, mainly due to high juice yield, total polyphenols, and antioxidant capacity.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectPomegranate (Punica granatum L.) juice
dc.subjectextraction methods
dc.subjectyield
dc.subjecttotal polyphenols
dc.subjectantioxidant capacity
dc.subjecttotal anthocyanins.a
dc.titleNutraceutical assessment of Georgia-grown pomegranate juice
dc.typeThesis
dc.description.degreeMS
dc.description.departmentFood Science and Technology
dc.description.majorFood Science
dc.description.advisorCasimir Akoh
dc.description.committeeCasimir Akoh
dc.description.committeeKarina Martino
dc.description.committeeDan MacLean


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