Related Experiment Video
Updated: May 17, 2026

Comparison of Tobacco Host Cell Protein Removal Methods by Blanching Intact Plants or by Heat Treatment of Extracts
Published on: August 8, 2016
Aspects of physical and chemical alterations to proteins during food processing - some implications for nutrition
Juliet A Gerrard1, Moritz Lasse, Justine Cottam
1Riddet Institute, Massey University, PB 11 222, Palmerston North 4442, New Zealand. juliet.gerrard@canterbury.ac.nz
Abstract:
In this paper, we give an overview of our research exploring the impact of physical and chemical processing on food proteins. There are three themes, applied to the proteins of wheat, soya, egg and dairy foods. Firstly, the impact of the Maillard reaction on food proteins is discussed, with a particular focus on how the reactions might be harnessed to manipulate food texture. Secondly, the potential of enzymatic protein-protein crosslinking is considered, especially the enzyme transglutaminase. Thirdly, the broader question of how the aggregation of proteins within a food is altered by chemical and physical modification and how, in turn, this might impact on the overall nutritional quality of the food is considered.
More Related Videos
Related Concept Videos
Protein Denaturation
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Microbial Spoilage of Food
Protein Modifications in the RER
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal sequences.
Protein Digestion
Protein Folding

