Effects of thermal and high pressure treatments on structural and functional properties of pea seed (Pisum sativum L.) proteins and enzymatic protein hydrolysates
| dc.contributor.author | Chao, Dongfang | |
| dc.contributor.examiningcommittee | Sevenhuysen, Gustaaf (Human Nutritional Science) Scanlon, Martin (Food Science) | en_US |
| dc.contributor.supervisor | Aluko, Rotimi (Human Nutritional Science) | en_US |
| dc.date.accessioned | 2012-07-09T20:28:27Z | |
| dc.date.available | 2012-07-09T20:28:27Z | |
| dc.date.issued | 2012-07-09 | |
| dc.degree.discipline | Human Nutritional Sciences | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | The effects of heat or high pressure treatment on the physicochemical and functional properties of pea proteins were evaluated by measuring polypeptide composition, hydrophobicity, solubility, gelation, emulsification, foaming, water-holding capacity and oil-holding capacity. Heat processing (≥ 70 °C) and high pressure treatment (≥ 200 MPa) led to significant increase (from 1.41 to 2.42) in hydrophobicity of native pea proteins. Native gel electrophoresis showed that the content of 11S protein decreased (increased aggregation) as intensity of pressure treatment was increased. In contrast the 7S protein was resistant to pressure-induced protein aggregation. The solubility and emulsifying capacity of pea proteins processed under higher pressure or heat at neutral pH had slight decreases probably due to the formation of aggregates. High pressure treatment of pea proteins led to reductions in the amount of protease required to produce renin-inhibitory peptides. | en_US |
| dc.description.note | October 2012 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/8103 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | Pea | en_US |
| dc.subject | Protein | en_US |
| dc.title | Effects of thermal and high pressure treatments on structural and functional properties of pea seed (Pisum sativum L.) proteins and enzymatic protein hydrolysates | en_US |
| dc.type | master thesis | en_US |