Overview
Background
United Nations (UN) member states in 2015 agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. Dr Deirdre Mikkelsen is a microbiologist and Senior Lecturer in Food Science at the School of Agriculture and Food Sustainability, where her teaching and research contribute to several UN SDGs, including:
- Goal 2 – Zero Hunger
- Goal 3 – Good Health and Well-being
- Goal 4 – Quality Education
- Goal 12 – Responsible Consumption and Production
- Goal 13 – Climate Action
- Goal 15 – Life on Land
Deirdre holds a B.Sc. (First Class Honours, 1999) and a PhD in Microbiology (2005), both from UQ. She has expertise in molecular microbial ecology, bioinformatics and fermentation microbiology. Her academic journey includes research roles at the Advanced Wastewater Management Centre (2005) and from 2006 at the Centre for Nutrition and Food Sciences (CNAFS), Queensland Alliance for Agriculture and Food Innovation (QAAFI), where she held Postdoctoral and Research Fellow positions. She joined her current School in 2019.
Program Coordination and Teaching
Dr Deirdre Mikkelsen is the Program Coordinator for the following postgraduate programs:
- Master of Food Science and Technology
- Master of Food Science and Technology (Research Extensive)
- Graduate Certificate in Food Science and Technology
She also coordinates and teaches:
- FOOD2000 – Food Science
- FOOD3017 – Food Safety & Quality Management
- FOOD7021 – Professional Experience (Work Integrated Learning)
Professional Memberships and Engagement
- Member, Australian Institute of Food Science and Technology (AIFST) – Queensland Branch Committee
- Member, International Union of Food Science and Technology (IUFoST) Education Oversight Group – Australasia representative
- Member, IUFoST – Food Safety Working Committee 2.2 (Education focus)
- Academic Advisory Group Member, Ag Connections Agriskills Accelerator Program
- Member, Australian Society for Microbiology (ASM)
Availability
- Dr Deirdre Mikkelsen is:
- Available for supervision
Fields of research
Qualifications
- Bachelor (Honours) of Microbiology, The University of Queensland
- Doctor of Philosophy, The University of Queensland
Research impacts
Research Interests
Deirdre’s research focuses on understanding how foods, diets, and nutrients influence the gut microbiota in humans and monogastric animal models. Her work integrates molecular microbial ecology and biopolymer science to explore:
- The structure and function of plant cell walls in cereals and grasses
- The fermentability of dietary fibres as potential prebiotics
- Microbial interactions with dietary fibres using molecular techniques
- The impact of dietary fibres on gut microbiota diversity and abundance
Research Impact
Deirdre’s research supports sustainable food systems and improved health outcomes by advancing knowledge of gut microbiota–diet interactions. Her work informs the development of functional foods and dietary strategies to promote gut health.
She has published 88 peer-reviewed articles, with an h-index of 30 and 3916 citations. Over 80% of her publications appear in Q1 journals. A highlight of her career is a 2020 publication in Nature Communications, co-authored with colleagues from CNAFS and KTH Sweden.
Works
Search Professor Deirdre Mikkelsen’s works on UQ eSpace
2015
Journal Article
Formulation and characterization of drug-loaded microparticles using distillers dried grain kafirin
Lau, Esther T. L., Johnson, Stuart K., Stanley, Roger A., Mereddy, Ram, Mikkelsen, Deirdre, Halley, Peter J. and Steadman, Kathryn J. (2015). Formulation and characterization of drug-loaded microparticles using distillers dried grain kafirin. Cereal Chemistry, 92 (3), 246-252. doi: 10.1094/CCHEM-05-14-0096-R
2015
Journal Article
Interactions of Arabinoxylan and (1,3)(1,4)-β-Glucan with Cellulose Networks
Mikkelsen, Deirdre, Flanagan, Bernadine M, Wilson, Sarah M, Bacic, Antony and Gidley, Michael J (2015). Interactions of Arabinoxylan and (1,3)(1,4)-β-Glucan with Cellulose Networks. Biomacromolecules, 16 (4), 1232-1239. doi: 10.1021/acs.biomac.5b00009
2015
Journal Article
Preparation and in vitro release of drug-loaded microparticles for oral delivery using wholegrain sorghum kafirin protein
Lau, Esther T. L., Johnson, Stuart K., Stanley, Roger A., Mikkelsen, Deirdre, Fang, Zhongxiang, Halley, Peter J. and Steadman, Kathryn J. (2015). Preparation and in vitro release of drug-loaded microparticles for oral delivery using wholegrain sorghum kafirin protein. International Journal of Polymer Science, 2015 343647, 1-8. doi: 10.1155/2015/343647
2014
Conference Publication
Development of enzymatic and histological methods complementing fluorescence in situ hybridisation to visualise and localise porcine gastrointestinal microbiota-dietary substrate associations
Gorham, John, Gidley, Michael, Williams, Barbara and Mikkelsen, Deirdre (2014). Development of enzymatic and histological methods complementing fluorescence in situ hybridisation to visualise and localise porcine gastrointestinal microbiota-dietary substrate associations. 9th Joint Rowett-INRA Symposium. Gut Microbiology: from Sequence to Function, Aberdeen, Scotland, UK, 16-19 June, 2014.
2014
Conference Publication
The Effect of Fruit Phytonutrients on Microbial Community Profiles of the Porcine Large Intestine
Grant, Lucas, Mikkelsen, Deirdre, Godwin, Scott, Gulino, Lisa-Maree, Ouwerkerk, Diane, Klieve, Athol, Gidley, Michael and Williams, Barbara (2014). The Effect of Fruit Phytonutrients on Microbial Community Profiles of the Porcine Large Intestine. Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, 16-19 June 2014.
2014
Conference Publication
Bacterial Cellulose as a Model System to Study In Vitro Fermentability of Black Carrot Phytonutrients
Mikkelsen, Deirdre, Netzel, Gabriele, Chan, Chui Ying, Gidley, Michael and Williams, Barbara (2014). Bacterial Cellulose as a Model System to Study In Vitro Fermentability of Black Carrot Phytonutrients. Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, 16-19 June 2014.
2014
Conference Publication
Effects of arabinoxylan dietary fibre fine structure on gut microbiota dynamics
Mikkelsen, Deirdre, Williams, Barbara A., Godwin, Scott, Gulino, Lisa-Maree, Ouwerkerk, Diane, Ismail, Munirah, Klieve, Athol and Gidley, Michael (2014). Effects of arabinoxylan dietary fibre fine structure on gut microbiota dynamics. ASM Meeting 2014: Australian Society for Microbiology Annual Scientific Meeting 2014, Melbourne, VIC, Australia, 6-9 July, 2014. Fitzroy, VIC, Australia: Australian Society for Microbiology.
2014
Conference Publication
The Effect of Dietary Pectin on Microbial Community Profiles of the Porcine Large Intestine
Grant, Lucas, Mikkelsen, Deirdre, Gulino, Lisa-Maree, Godwin, Scott, Ouwerkerk, Diane, Klieve, Athol, Gidley, Michael and Williams, Barbara (2014). The Effect of Dietary Pectin on Microbial Community Profiles of the Porcine Large Intestine. Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, 16-19 June 2014.
2014
Conference Publication
Modulation of in vitro fermentation by polyphenol-rich black carrot fractions
Netzel, G., Mikkelsen, D., Flanagan, B., Netzel, M., Gidley, M. J. and Williams, B. (2014). Modulation of in vitro fermentation by polyphenol-rich black carrot fractions. 29th International Horticultural Congress, Brisbane, QLD, Australia, 17-22 September 2014.
2014
Conference Publication
Fermentability of Arabinose Depleted Arabinoxylan
Mikkelsen, Deirdre, Williams, Barbara, Ismail, Munirah, Godwin, Scott, Gulino, Lisa-Maree, Ouwerkerk, Diane, Klieve, Athol and Gidley, Michael (2014). Fermentability of Arabinose Depleted Arabinoxylan. Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, 16-19 June 2014.
2014
Conference Publication
The effect of dietary fibre on the microbial community profile of the porcine gastrointestinal tract
Grant, Lucas, Gulino, Lisa-Maree, Godwin, Scott, Mikkelsen, Deirdre, Gidley, Michael J. and Williams, Barbara A. (2014). The effect of dietary fibre on the microbial community profile of the porcine gastrointestinal tract. ASM Meeting 2014: Australian Society for Microbiology Annual Scientific Meeting 2014, Melbourne, VIC, Australia, 6-9 July, 2014. Fitzroy, VIC, Australia: Australian Society for Microbiology.
2014
Conference Publication
Microbial Population Shifts in Response to Dietary Arabinoxylan and Protein Changes
Gorham, John, Williams, Barbara, Gidley, Michael and Mikkelsen, Deirdre (2014). Microbial Population Shifts in Response to Dietary Arabinoxylan and Protein Changes. Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, 16-19 June 2014.
2013
Journal Article
Lack of release of bound anthocyanins and phenolic acids from carrot plant cell walls and model composites during simulated gastric and small intestinal digestion
Padayachee, Anneline, Netzel, Gabriele, Netzel, Michael, Day, Li, Mikkelsen, Deirdre and Gidley, Michael J. (2013). Lack of release of bound anthocyanins and phenolic acids from carrot plant cell walls and model composites during simulated gastric and small intestinal digestion. Food and Function, 4 (6), 906-916. doi: 10.1039/c3fo60091b
2013
Conference Publication
Black carrot polyphenols and their effect on plant cell wall fermentability
Netzel, G., Mikkelsen, D., Flanagan, B., Netzel, M., Gidley, M. J. and Williams, B. A. (2013). Black carrot polyphenols and their effect on plant cell wall fermentability. NSA NSNZ 2013 Joint Annual Scientific Meeting: 37th Annual Scientific Meeting of the Nutrition Society of Australia in conjunction with the Nutrition Society of New Zealand, Brisbane, QLD, Australia, 4-6 December, 2013. Perth, WA, Australia: Australasian Medical Journa.
2013
Conference Publication
Fibre interactions with polyphenols and implications for gut release
Padayachee, A., Netzel, G., Netzel, M., Day, L., Mikkelsen, D. and Gidley, M. J. (2013). Fibre interactions with polyphenols and implications for gut release. NSA NSNZ 2013 Joint Annual Scientific Meeting: 37th Annual Scientific Meeting of the Nutrition Society of Australia in conjunction with the Nutrition Society of New Zealand, Brisbane, QLD, Australia, 4-6 December, 2013. Perth, WA, Australia: Australasian Medical Journal.
2013
Conference Publication
Plant fibre structural inferences on polyphenol release
Padayachee, Anneline, Netzel, G., Netzel, M., Mikkelsen, D. and Gidley, M. (2013). Plant fibre structural inferences on polyphenol release. Food Structure, Digestion and Health: 2nd International Conference, Melbourne, VIC, Australia, 21-24 October, 2013.
2012
Journal Article
Binding of polyphenols to plant cell wall analogues - part 2: phenolic acids
Padayachee, A., Netzel, G., Netzel, M., Day, L., Zabaras, D., Mikkelsen, D. and Gidley, M. J. (2012). Binding of polyphenols to plant cell wall analogues - part 2: phenolic acids. Food Chemistry, 135 (4), 2287-2292. doi: 10.1016/j.foodchem.2012.07.004
2012
Journal Article
Binding of polyphenols to plant cell wall analogues - part 1: Anthocyanins
Padayachee, A., Netzel, G., Netzel, M., Day, L., Zabaras, D., Mikkelsen, D. and Gidley, M. (2012). Binding of polyphenols to plant cell wall analogues - part 1: Anthocyanins. Food Chemistry, 134 (1), 155-161. doi: 10.1016/j.foodchem.2012.02.082
2012
Journal Article
Purified 1 ' acetoxychavicol acetate (1 ' ACA) from galangal spice affects membrane fatty acid composition and triggers a cell envelope stress response in Staphylococcus aureus
Weerakkody, Nimsha S., Smith, William M., Mikkelsen, Deirdre, Waanders, Jennifer, Kerven, Graham, Caffin, Nola, Dykes, Gary A. and Turner, Mark S. (2012). Purified 1 ' acetoxychavicol acetate (1 ' ACA) from galangal spice affects membrane fatty acid composition and triggers a cell envelope stress response in Staphylococcus aureus. International Journal of Antimicrobial Agents, 39 (3), 269-271. doi: 10.1016/j.ijantimicag.2011.11.010
2012
Journal Article
Preparation and in vitro release of zein microparticles loaded with prednisolone for oral delivery
Lau, Esther T. L., Johnson, Stuart K., Mikkelsen, Deirdre, Halley, Peter J. and Steadman, Kathryn J. (2012). Preparation and in vitro release of zein microparticles loaded with prednisolone for oral delivery. Journal of Microencapsulation, 29 (7), 706-712. doi: 10.3109/02652048.2012.686527
Funding
Current funding
Past funding
Supervision
Availability
- Dr Deirdre Mikkelsen is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Supervision history
Current supervision
-
Doctor Philosophy
Comprehensive use of whole body computed tomography,microbiome and metabolomics analysis to measure the effects ofdietary and exercise interventions on body fat content in dogs a stepforward in the understanding of obesity and overweight in dogs
Associate Advisor
Other advisors: Dr Rebekah Scotney, Professor Joerg Henning, Dr Erika Meler, Dr Justine Gibson
-
Doctor Philosophy
The Role of Hypothalamic Dopaminergic Degeneration in Intestinal Health in Horses with Pituitary Pars Intermedia Dysfunction
Associate Advisor
Other advisors: Dr Justine Gibson, Dr Viviana Gonzalez Astudillo, Dr Allison Stewart, Associate Professor Francois-Rene Bertin
-
Doctor Philosophy
Investigations into the importance of antimicrobial residues in the surveillance of antimicrobial resistance in peri-urban dairy farms of Nepal
Associate Advisor
Other advisors: Professor Peter Sly, Dr Nicholas Clark, Professor Ricardo Soares Magalhaes
-
Doctor Philosophy
Epidemiology and control of canine skin and ear conditions in Australia
Associate Advisor
Other advisors: Professor Ricardo Soares Magalhaes, Dr Erika Meler, Dr Justine Gibson
-
Doctor Philosophy
Understanding the relationship between the shape, size and local density of food gels and their functionality in vitro
Associate Advisor
Other advisors: Dr Bernadine Flanagan, Dr Heather Shewan, Professor Mike Gidley
Completed supervision
-
2024
Doctor Philosophy
Microbiota interactions and functionality in response to nut consumption and in vitro fermentation
Principal Advisor
Other advisors: Dr Bernadine Flanagan, Professor Mike Gidley
-
2017
Doctor Philosophy
Changes to gut bacteria composition and diversity by the addition of soluble dietary fibres to porcine diets: human health implications.
Principal Advisor
Other advisors: Professor Mike Gidley
-
2025
Doctor Philosophy
Pathogenicity, Genomic Characterisation, and Management of Fusarium proliferatum and F. oxysporum in Allium spp. with focus on Garlic (Allium sativum)
Associate Advisor
Other advisors: Dr Alwyn Williams, Professor Victor Galea
-
2024
Doctor Philosophy
Optimising and industrialising black soldier fly (BSF) production -redirecting food waste to livestock feed production using insects
Associate Advisor
Other advisors: Associate Professor Daniel Cozzolino, Professor Louw Hoffman
-
2023
Doctor Philosophy
Dietary fibre concentration and particle size drive in vitro gut microbial fermentation behaviours
Associate Advisor
Other advisors: Dr Bernadine Flanagan, Professor Mike Gidley
-
2022
Master Philosophy
Characterisation of a synbiotic product and its impact on human gastrointestinal microbiota
Associate Advisor
Other advisors: Professor Mark Turner, Professor Nidhi Bansal
-
2022
Doctor Philosophy
Mechanisms of Resistant Starch Breakdown by Gut Microbiota Using High Amylose Wheat
Associate Advisor
Other advisors: Professor Mark Morrison, Professor Mike Gidley
-
2021
Doctor Philosophy
In Vitro Fermentation of Insoluble Dietary Fibers and Undigested Fractions from Plant Food Sources
Associate Advisor
Other advisors: Dr Bernadine Flanagan, Professor Mike Gidley
-
2021
Doctor Philosophy
In vitro gut microbial fermentation of models for plant dietary fibre
Associate Advisor
Other advisors: Dr Bernadine Flanagan, Professor Mike Gidley
-
2019
Doctor Philosophy
BACTERIAL MEDIATED ENZYMATIC METABOLISM OF ARABINOXYLAN AND GALACTOXYLOGLUCAN UNDER IN VITRO FERMENTATION CONDITIONS
Associate Advisor
Other advisors: Dr Bernadine Flanagan, Professor Mike Gidley
-
2018
Doctor Philosophy
Characterisation of cellulose produced by different Komagataeibacter strains: Towards an improved plant cell wall model
Associate Advisor
Other advisors: Professor Mike Gidley
-
2017
Doctor Philosophy
Fruit components and their effects on the gastrointestinal bacterial community
Associate Advisor
Other advisors: Professor Mike Gidley
-
2012
Doctor Philosophy
The role of the plant cell wall on the bioaccessibility of anthocyanins and phenolic acids released from fruits and vegetables.
Associate Advisor
Other advisors: Professor Mike Gidley
Media
Enquiries
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