4.7 Article

Gelling Properties of Microparticulated Whey Proteins

Journal

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 58, Issue 11, Pages 6825-6832

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jf1009796

Keywords

Whey proteins; microfluidization; cold gelation; heat gelation; polyacrylamide gel electrophoresis; N-ethylmaleimide; sodium dodecyl sulfate; Tween 20

Funding

  1. Faculty of Health, Engineering and Science, Victoria University, Melbourne
  2. Dairy Innovation of Australia Limited

Ask authors/readers for more resources

Subjecting whey proteins to high-pressure shearing with or without heating, commonly termed microparticulation, results in novel ingredients with modulated functionalities. Gelling properties of microparticulated whey proteins (MWP) were specifically assessed in this study. MWP powders were produced from commercial cheese whey retentate, standardized to 10% (w/w) protein, and subjected to microfluidization (MFZ) at 140 MPa either with or without prior heat-induced denaturation, followed by spray-drying. Gels were created from aqueous MWP dispersions either by heating at 90 degrees C for 20 min or by allowing gels to form at ambient temperature through addition of glucano-delta-lactone and/or NaCl. MWP powders produced from unheated WP dispersions created firm gels upon heating, whereas those produced from denatured WP gave only cold-set gels. Covalent and noncovalent protein-protein interactions were involved during both heat- and cold-induced gelation. Hydrophobic interactions were more pronounced during aggregation of bovine serum albumin. In conclusion, microparticulation of WP resulted in heat- and cold-set gels with different molecular and physical characteristics from those of untreated controls.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Review Food Science & Technology

Exploring the potential of polysaccharides or plant proteins as structuring agents to design cheeses with sensory properties focused toward consumers in East and Southeast Asia: a review

Hao Ouyang, Kieran N. Kilcawley, Song Miao, Mark Fenelon, Alan Kelly, Jeremiah J. Sheehan

Summary: The article discusses the global cheese industry's focus on accessing new markets, driving the need for innovation in cheese products, especially in meeting the preferences of East Asian consumers for soft textures and mild flavors. Strategies such as incorporating polysaccharides and plant proteins are reviewed as ways to achieve desired cheese characteristics, with a focus on developing bespoke structures for these markets.

CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION (2022)

Article Food Science & Technology

Suitability of a novel camel (Camelus dromedarius) chymosin as a coagulant for Cheddar cheese manufacture

Bozhao Li, David S. Waldron, MaryAnne Drake, John Lyne, Alan L. Kelly, Paul L. H. McSweeney

Summary: In this study, Cheddar-type cheese was produced using different types of chymosin. The cheese made with modified camel chymosin had higher hardness and lower meltability compared to the other cheeses. Sensory analysis also showed that cheese made with modified camel chymosin had improved flavor characteristics.

INTERNATIONAL DAIRY JOURNAL (2022)

Article Engineering, Chemical

A preliminary evaluation of the impact of pulsed electric field and high-pressure processing treatments on mobility of norbixin molecules through rennet-induced casein matrices

Ali Alehosseini, Catherine Wall, Annalisa Segat, Brijesh K. Tiwari, Prateek Sharma, Alan L. Kelly, Jeremiah J. Sheehan

Summary: The research evaluated the potential of Pulsed Electric Field (PEF) and High Pressure Processing (HPP) to increase the diffusion rate of norbixin molecules in cheese. While the operational parameters did not significantly increase the penetration rate of norbixin, the findings contribute to current knowledge and could lead to a practical solution through further research.

JOURNAL OF FOOD PROCESS ENGINEERING (2022)

Article Food Science & Technology

Influence of low molecular weight surfactants on the stability of model infant formula emulsions based on hydrolyzed rice protein

Luca Amagliani, Jonathan O'Regan, Alan L. Kelly, James A. O'Mahony

Summary: The study investigated the influence of different low molecular weight surfactants on the stability of model infant formula emulsions based on rice protein hydrolyzate, showing that CITREM and DATEM improved the stability of the emulsions.

LWT-FOOD SCIENCE AND TECHNOLOGY (2022)

Article Food Science & Technology

Bovine β-Casomorphins: Friends or Foes? A comprehensive assessment of evidence from in vitro and ex vivo studies

Davor Daniloski, Noel A. McCarthy, Todor Vasiljevic

Summary: This study evaluates the impact of beta-casomorphins on human health, but the results are inconclusive and limited, requiring more experiments to confirm. Since these peptides are usually further cleaved in the gut, some individuals may experience increased intestinal permeability leading to a leaky gut condition, making the absorption of beta-casomorphins possible.

TRENDS IN FOOD SCIENCE & TECHNOLOGY (2021)

Article Chemistry, Applied

Shear-induced structural changes and denaturation of bovine immunoglobulin G and serum albumin at different temperatures

Dimuthu Bogahawaththa, Todor Vasiljevic

Summary: Shearing can alter the secondary structure and denaturation extent of proteins, with different effects observed for IgG and BSA. Shearing at specific temperatures may have a countereffect against thermal denaturation, while in most conditions, shearing induced denaturation of proteins.

FOOD HYDROCOLLOIDS (2022)

Review Food Science & Technology

Heat treatment of milk: Effect on concentrate viscosity, powder manufacture and end-product functionality

Noel A. McCarthy, Jonathan B. Magan, Clodagh M. Kelleher, Alan L. Kelly, James A. O'Mahony, Eoin G. Murphy

Summary: The heat treatment of milk and dairy ingredients for powder manufacture is a complex area that affects microbial quality, process efficiency, and end-powder functionality. Understanding the mechanisms behind heat-induced viscosity increase is important for preventing fouling of processing equipment. This review highlights areas of limited research and suggests future exploration.

INTERNATIONAL DAIRY JOURNAL (2022)

Article Food Science & Technology

Actinidin-induced hydrolysis of milk proteins: Effect on antigenicity

S. Kaur, T. Huppertz, T. Vasiljevic

Summary: Actinidin can effectively reduce the immunoreactivity of beta-lactoglobulin and alpha s(1)-casein in whey protein isolate and milk protein concentrate through protein hydrolysis. The hydrolysis process, temperature, and time significantly affect the reduction in antigenicity.

LWT-FOOD SCIENCE AND TECHNOLOGY (2022)

Article Food Science & Technology

Factors affecting the creaming of raw bovine milk: A comparison of natural and accelerated methods

Fanyu Meng, Therese Uniacke-Lowe, Alan L. L. Kelly

Summary: The study investigated the effects of heating, addition of calcium-chelating agents, sonication, and freezing on the creaming of bovine milk. Heating had a slight impact on the creaming rate, while the addition of trisodium citrate enhanced the creaming rate. Sonication and high-temperature heating resulted in the flocculation of fat globules in the cream region.

LWT-FOOD SCIENCE AND TECHNOLOGY (2022)

Article Food Science & Technology

Effect of casein-whey ingredient blends on the protein stability of model infant formulas

Sinead A. Mc Entee, Eoin G. Murphy, Fergal N. Lawless, Alan L. Kelly, Noel A. McCarthy

Summary: This study evaluated the suitability of milk protein concentrate (MPC 80), skim milk powder, acid whey protein concentrate (aWPC 35), cheese whey protein concentrate and isolate (cWPC 35 and cWPI) in infant formula applications. The serum-phase compounds in casein-rich streams, especially aWPC 35, played a crucial role in controlling whey protein thermal aggregation. Replacing cWPC 35 with cWPI improved protein stability at UHT temperatures, indicating that removal of minerals from whey protein streams could increase thermal stability.

INTERNATIONAL DAIRY JOURNAL (2023)

Article Food Science & Technology

Application of small amplitude oscillatory rheology measurements for estimating residual rennet activity in rennet whey

Joseph F. Kayihura, Thom Huppertz, Todor Vasiljevic

Summary: (English Summary) This study determined RCT using small amplitude oscillatory rheology and modified the Carlson, Hill, and Olson's spiking technique to estimate residual RA. A simple model for estimating RA partitioning based on whey volume was proposed.

INTERNATIONAL DAIRY JOURNAL (2022)

Article Biochemistry & Molecular Biology

Influence of pH on Heat-Induced Changes in Skim Milk Containing Various Levels of Micellar Calcium Phosphate

Elaheh Ahmadi, Todor Vasiljevic, Thom Huppertz

Summary: The present study investigated the effect of micellar calcium phosphate (MCP) content and pH of skim milk on heat-induced changes in skim milk. The results demonstrated that reducing MCP content had a positive effect on the thermal stability of milk protein, while higher MCP content might lead to changes in protein structure and the formation of aggregates.

MOLECULES (2023)

Article Food Science & Technology

Influence of Actinidin-Induced Hydrolysis on the Functional Properties of Milk Protein and Whey Protein Concentrates

Surjit Kaur, Todor Vasiljevic, Thom Huppertz

Summary: The study aimed to investigate the impact of actinidin on the functionality of milk protein systems. The results showed that the extent of hydrolysis was associated with changes in protein functionality, with solubility increasing and emulsifying properties decreasing with higher degrees of hydrolysis. Heat stability improved for whey protein concentrate while foaming properties improved for both whey protein concentrate and milk protein concentrate. Further adjustments in hydrolysis parameters and processing conditions could potentially manipulate the functionality of hydrolysates obtained using actinidin.

FOODS (2023)

Review Food Science & Technology

Ice crystallization and structural changes in cheese during freezing and frozen storage: implications for functional properties

Alan L. Digvijay, Alan L. Kelly, Prabin Lamichhane

Summary: Temperature-mediated preservation techniques provide a simple and effective method for long-term storage of food products. However, the effects of sub-zero temperatures and freezing on the properties of heterogeneous systems like cheese are not well understood. Ice crystallization during freezing can cause undesirable changes in texture and functionality of cheese, but the findings vary due to experimental conditions. Different types of cheese may have different effects and suitability for frozen storage, with most cases adversely affecting texture and functional attributes.

CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION (2023)

Article Food Science & Technology

What is the impact of amino acid mutations in the primary structure of caseins on the composition and functionality of milk and dairy products?

Davor Daniloski, Noel A. McCarthy, Thom Huppertz, Todor Vasiljevic

Summary: This article examines the impact of amino acid mutations on the peptide structure of bovine milk protein, which can affect its processability and physiological properties. Genetic polymorphisms of bovine caseins have been found to influence the chemical, structural, and technological properties of milk. The differences between A1 and A2 genetic variants of beta-casein have gained attention recently and have prompted new developments in the field. The review provides insights into the subtle variations in physicochemical properties of bovine milk, which can support the development of dairy products with different functional properties.

CURRENT RESEARCH IN FOOD SCIENCE (2022)

No Data Available