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Preparation, characterization and functional properties of flax seed protein isolate

Kaushik, Pratibha, Dowling, Kim, McKnight, Stafford, Barrow, Colin, Wang, Bo and Adhikari, Benu 2016, Preparation, characterization and functional properties of flax seed protein isolate, Food chemistry, vol. 197, no. Pt A, pp. 212-220, doi: 10.1016/j.foodchem.2015.09.106.

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Title Preparation, characterization and functional properties of flax seed protein isolate
Author(s) Kaushik, Pratibha
Dowling, Kim
McKnight, Stafford
Barrow, ColinORCID iD for Barrow, Colin orcid.org/0000-0002-2153-7267
Wang, Bo
Adhikari, Benu
Journal name Food chemistry
Volume number 197
Issue number Pt A
Start page 212
End page 220
Total pages 9
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-04-15
ISSN 1873-7072
0308-8146
Keyword(s) flaxseed protein isolate
solubility
zeta potential
emulsion activity index
droplet size
Summary Flaxseed protein isolate (FPI) was extracted from flaxseeds, and its amino acid composition and functional properties (solubility, thermal stability, emulsifying properties and electrostatic charge density, water holding and fat absorption capacities) were determined. The highest purity of FPI (90.6%) was achieved by extraction at 60°C. FPI had a low lysine to arginine ratio of 0.25, which is desired in heart-healthy foods and infant formulas. The denaturation temperature of FPI was 105°C. FPI had the highest emulsion activity index (375.51 m(2)/g), highest emulsion stability index (179.5 h) and zeta potential (-67.4 mV) when compared to those of other commonly used proteins, such as sodium caseinate (SC), whey protein isolate (WPI), gelatin (Gel) and soy protein isolate (SPI). The average emulsion droplet size of emulsions stabilized by these proteins was in the order SC
Language eng
DOI 10.1016/j.foodchem.2015.09.106
Field of Research 090801 Food Chemistry and Molecular Gastronomy (excl Wine)
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elseveir
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083314

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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