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- 저자 : Nicole A. Avarmenko (검색결과 1 건)
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Functional Properties of Protein Isolates from Different Pea Cultivars
Andrea K. Stone,Nicole A. Avarmenko,Tom D. Warkentin,Michael T. Nickerson 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.3
Surface characteristics and functional attributes of protein isolates prepared from different pea cultivars using isoelectric precipitation were investigated. Protein levels of isolates ranged from 81-89% with isoelectric points occurring between pH 4.7-4.9. Surface hydrophobicity values differed among cultivars with CDC Dundurn and CDC Striker isolates having the lowest and highest values, respectively. Protein solubility values at pH 7.0 varied with MFR042 and CDC Dundurn isolates displaying the lowest (approximately 54%) and highest (approximately 76%) values, respectively. No significant (p>0.05) differences existed between cultivar isolates for water hydration and oil holding capacity values. Cooper and CDC Dundurn isolates had significantly (p<0.05) lower emulsifying activity indices (EAI) (approximately 31-33 m2/g) than the other cultivars. Emulsifying stability index values were all similar. EAI values were positively correlated with surface hydrophobicity values and negatively correlated with solubility values. Varietal differences for the functional attributes of solubility and emulsification were identified.
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