4.7 Article

Interfacial adsorption behavior of ovalbumin/ sodium carboxymethyl cellulose colloidal particles: The effects of preparation methods

Journal

FOOD HYDROCOLLOIDS
Volume 120, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.106969

Keywords

Protein/polysaccharide colloidal particles; Interfacial adsorption behavior; Stability; Preparation methods

Funding

  1. National Natural Science Foundation of China [31701650, 31171713]
  2. Food Science and Engineering the Most Important Discipline of Zhejiang Province the Foundation of Top Disciplines for Food Industry Engi-neering [2017SIAR220]
  3. Natural Science Foundation of Zhejiang Province [LY17C200004]
  4. National Key Research and Development Program of China [2018YFD0400303]

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This study investigated the influence of different preparation methods on the interfacial adsorption behavior of biological macromolecular colloidal particles by preparing three types of emulsions. The emulsions with high viscosity or severe aggregation showed longer decay time, while those treated with ultrasonic emulsification exhibited smaller particle size and better stability. The results suggest that moderate energy input and longer-acting duration are necessary for emulsions stabilized by biological macromolecular colloidal particles.
To analyze the influence of different preparation methods on the interfacial adsorption behavior of biological macromolecular colloidal particles, three types of emulsions were prepared in this work. Furthermore, the stability mechanisms of the emulsions prepared via different preparation methods were also described. The result showed that the emulsions with relatively high viscosity or relatively severe aggregation displayed longer decay time. The viscoelastic data indicated that all emulsions formed a weakly viscous gel structure, while the MSD data shows that the movement of the droplets was unrestricted by the cage structure. The emulsions treated by ultrasonic emulsification possessed a smaller particle size and good stability as compared to those treated by high-speed shearing process and high-pressure homogenization. For the emulsions stabilized by biological macromolecular colloidal particles, a moderate energy input (ultrasonic emulsification) and a longer-acting duration were necessary. Thus, these results provided new concepts for the development and utilization of emulsions in the food industry.

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