Mild high hydrostatic pressure processing: effects on techno-functional properties and allergenicity of ovalbumin
2024
Horvitz Szoichet, Sandra Susana | Arroqui Vidaurreta, Cristina | Virseda Chamorro, Paloma | Institute on Innovation and Sustainable Development in Food Chain - ISFOOD | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
The effects of mild (250–350 MPa) high hydrostatic pressures (HHP) on the technological properties of ovalbumin were studied. Thermal gels were prepared using HHP-treated ovalbumin. Their characteristics and the efficacy of HHP processing to inhibit allergenicity were evaluated. The samples treated at 250 MPa/15 min, 350 MPa/10 min and 350 MPa/15 min showed the best results for solubility and water and oil absorption capacities, respectively. Regardless of treatment duration, foaming capacity increased with pressure. The foam stability only increased significantly in the samples subjected to 350 MPa for 10 and 15 min. On the contrary, the mildest treatment yielded the highest emulsifying activity index and emulsion stability. Improved gel strength and water holding capacity were observed, particularly under 300 MPa, resulting in a maximum inhibition of allergenicity (46.75%).
Show more [+] Less [-]The authors acknowledge the financial support received from the Navarra Government for the execution of the project HPGEL. Exp.0011-1365-2018-000140 and from the Universidad Pública de Navarra for the Open access funding.
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