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
2019
Journal Article
Microbial enzymatic degradation of tamarind galactoxyloglucan and wheat arabinoxylan by a porcine faecal inoculum
Feng, Guangli, Flanagan, Bernadine M., Mikkelsen, Deirdre, Williams, Barbara A. and Gidley, Michael J. (2019). Microbial enzymatic degradation of tamarind galactoxyloglucan and wheat arabinoxylan by a porcine faecal inoculum. Bioactive Carbohydrates and Dietary Fibre, 18 100183, 100183. doi: 10.1016/j.bcdf.2019.100183
2019
Conference Publication
Hydrogels of bacterial cellulose and wood hemicelluloses as a model of plant secondary cell walls
Berglund, Jennie, Mikkelsen, Deirdre, Flanagan, Bernadine, Dhital, Sushil, Henriksson, Gunnar, Lindstrom, Mikael, Yakubov, Gleb, Gidley, Michael and Vilaplana, Francisco (2019). Hydrogels of bacterial cellulose and wood hemicelluloses as a model of plant secondary cell walls. National Meeting of the American Chemical Society (ACS), Orlando, Florida, 31 March - 4 April 2019. Washington, DC, United States: American Chemical Society.
2019
Journal Article
High Molecular Weight Mixed-Linkage Glucan as a Mechanical and Hydration Modulator of Bacterial Cellulose: Characterization by Advanced NMR Spectroscopy
Muñoz-García, Juan C., Corbin, Kendall R., Hussain, Haider, Gabrielli, Valeria, Koev, Todor, Iuga, Dinu, Round, Andrew N., Mikkelsen, Deirdre, Gunning, Patrick A., Warren, Frederick J. and Khimyak, Yaroslav Z. (2019). High Molecular Weight Mixed-Linkage Glucan as a Mechanical and Hydration Modulator of Bacterial Cellulose: Characterization by Advanced NMR Spectroscopy. Biomacromolecules, 20 (11) acs.biomac.9b01070, 4180-4190. doi: 10.1021/acs.biomac.9b01070
2018
Journal Article
Extracellular depolymerisation triggers fermentation of tamarind xyloglucan and wheat arabinoxylan by a porcine faecal inoculum
Feng, Guangli, Flanagan, Bernadine M., Williams, Barbara A., Mikkelsen, Deirdre, Yu, Wenwen and Gidley, Michael J. (2018). Extracellular depolymerisation triggers fermentation of tamarind xyloglucan and wheat arabinoxylan by a porcine faecal inoculum. Carbohydrate Polymers, 201, 575-582. doi: 10.1016/j.carbpol.2018.08.089
2018
Journal Article
Mechanical properties of bacterial cellulose synthesised by diverse strains of the genus Komagataeibacter
Chen, Si-Qian, Lopez-Sanchez, Patricia, Wang, Dongjie, Mikkelsen, Deirdre and Gidley, Michael J. (2018). Mechanical properties of bacterial cellulose synthesised by diverse strains of the genus Komagataeibacter. Food Hydrocolloids, 81, 87-95. doi: 10.1016/j.foodhyd.2018.02.031
2018
Journal Article
Food starch structure impacts gut microbiome composition
Warren, Frederick J., Fukuma, Naoki M., Mikkelsen, Deirdre, Flanagan, Bernadine M., Williams, Barbara A., Lisle, Allan T., Ó Cuív, Páraic, Morrison, Mark and Gidley, Michael J. (2018). Food starch structure impacts gut microbiome composition. mSphere, 3 (3) e00086-18. doi: 10.1128/mSphere.00086-18
2018
Journal Article
Mechanisms of utilisation of arabinoxylans by a porcine faecal inoculum: competition and co-operation
Feng, Guangli, Flanagan, Bernadine M., Mikkelsen, Deirdre, Williams, Barbara A., Yu, Wenwen, Gilbert, Robert G and Gidley, Michael J (2018). Mechanisms of utilisation of arabinoxylans by a porcine faecal inoculum: competition and co-operation. Scientific Reports, 8 (1) 4546, 4546. doi: 10.1038/s41598-018-22818-4
2017
Journal Article
Gut fermentation of dietary fibres: physico-chemistry of plant cell walls and implications for health
Williams, Barbara A., Grant, Lucas J., Gidley, Michael J. and Mikkelsen, Deirdre (2017). Gut fermentation of dietary fibres: physico-chemistry of plant cell walls and implications for health. International Journal of Molecular Sciences, 18 (10) 2203, 2203. doi: 10.3390/ijms18102203
2017
Journal Article
Multi-scale characterisation of deuterated cellulose composite hydrogels reveals evidence for different interaction mechanisms with arabinoxylan, mixed-linkage glucan and xyloglucan
Martinez-Sanz, Marta, Mikkelsen, Deirdre, Flanagan, Bernadine M., Gidley, Michael J. and Gilbert, Elliot P. (2017). Multi-scale characterisation of deuterated cellulose composite hydrogels reveals evidence for different interaction mechanisms with arabinoxylan, mixed-linkage glucan and xyloglucan. Polymer, 124, 1-11. doi: 10.1016/j.polymer.2017.07.036
2017
Journal Article
Effects of tea extracts on the colonization behaviour of Candida species: attachment inhibition and biofilm enhancement
Wang, Yi, Bandara, H. M. H. N., Mikkelsen, Deirdre and Samaranayake, Lakshman P. (2017). Effects of tea extracts on the colonization behaviour of Candida species: attachment inhibition and biofilm enhancement. Journal of Medical Microbiology, 66 (8), 1244-1252. doi: 10.1099/jmm.0.000555
2017
Journal Article
Optimizing prednisolone loading into distiller’s dried grain kafirin microparticles, and in vitro release for oral delivery
Lau, Esther T. L., Johnson, Stuart K., Williams, Barbara, Mikkelsen, Deirdre, McCourt, Elizabeth, Stanley, Roger, Mereddy, Ram, Halley, Peter J. and Steadman, Kathryn (2017). Optimizing prednisolone loading into distiller’s dried grain kafirin microparticles, and in vitro release for oral delivery. Pharmaceutics, 9 (2) 17, 17. doi: 10.3390/pharmaceutics9020017
2017
Journal Article
Characterisation of bacterial cellulose from diverse Komagataeibacter strains and their application to construct plant cell wall analogues
Chen, Si-Qian, Mikkelsen, Deirdre, Lopez-Sanchez, Patricia, Wang, Dongjie, Martinez-Sanz, Marta, Gilbert, Elliot P., Flanagan, Bernadine M. and Gidley, Michael J. (2017). Characterisation of bacterial cellulose from diverse Komagataeibacter strains and their application to construct plant cell wall analogues. Cellulose, 24 (3), 1211-1226. doi: 10.1007/s10570-017-1203-3
2016
Journal Article
Aluminium effects on mechanical properties of cell wall analogues
McKenna, Brigid A., Wehr, J. Bernhard, Mikkelsen, Deirdre, Blamey, F. Pax C. and Menzies, Neal W. (2016). Aluminium effects on mechanical properties of cell wall analogues. Physiologia Plantarum, 158 (4), 382-388. doi: 10.1111/ppl.12472
2016
Journal Article
Porphyromonas loveana sp. Nov., isolated from the oral cavity of Australian marsupials
Bird, Philip S., Trott, Darren J., Mikkelsen, Deirdre, Milinovich, Gabriel J., Hillman, Kristine M., Burrell, Paul C. and Blackall, Linda L. (2016). Porphyromonas loveana sp. Nov., isolated from the oral cavity of Australian marsupials. International Journal of Systematic and Evolutionary Microbiology, 66 (10) 000898, 3771-3778. doi: 10.1099/ijsem.0.000898
2016
Journal Article
Multi-scale model for the hierarchical architecture of native cellulose hydrogels
Martinez-Sanz, Marta, Mikkelsen, Deirdre, Flanagan, Bernadine, Gidley, Michael J. and Gilbert, Elliot P. (2016). Multi-scale model for the hierarchical architecture of native cellulose hydrogels. Carbohydrate Polymers, 147, 542-555. doi: 10.1016/j.carbpol.2016.03.098
2016
Journal Article
Investigation of the micro- and nano-scale architecture of cellulose hydrogels with plant cell wall polysaccharides: a combined USANS/SANS study
Martinez-Sanz, Marta, Mikkelsen, Deirdre, Flanagan, Bernadine M., Rehm, Christine, de Campo, Liliana, Gidley, Michael J. and Gilbert, Elliot P. (2016). Investigation of the micro- and nano-scale architecture of cellulose hydrogels with plant cell wall polysaccharides: a combined USANS/SANS study. Polymer, 105, 449-460. doi: 10.1016/j.polymer.2016.07.015
2016
Journal Article
Soluble arabinoxylan enhances large intestinal microbial health biomarkers in pigs fed a red meat-containing diet
Williams, Barbara A., Zhang, Dagong, Lisle, Allan T., Mikkelsen, Deirdre, McSweeney C. S., Kang, Seungha, Bryden, Wayne L. and Gidley, Michael J. (2016). Soluble arabinoxylan enhances large intestinal microbial health biomarkers in pigs fed a red meat-containing diet. Nutrition, 32 (4), 491-497. doi: 10.1016/j.nut.2015.10.008
2016
Journal Article
Visualization of microbe-dietary remnant interactions in digesta from pigs, by fluorescence in situ hybridization and staining methods; effects of a dietary arabinoxylan-rich wheat fraction
Gorham, John B., Williams, Barbara A., Gidley, Michael J. and Mikkelsen, Deirdre (2016). Visualization of microbe-dietary remnant interactions in digesta from pigs, by fluorescence in situ hybridization and staining methods; effects of a dietary arabinoxylan-rich wheat fraction. Food Hydrocolloids, 52, 952-962. doi: 10.1016/j.foodhyd.2015.09.011
2016
Journal Article
Addition of arabinoxylan and mixed linkage glucans in porcine diets affects the large intestinal bacterial populations
Gorham, John B., Kang, Seungha, Williams, Barbara A., Grant, Lucas J., McSweeney, Christopher S., Gidley, Michael J. and Mikkelsen, Deirdre (2016). Addition of arabinoxylan and mixed linkage glucans in porcine diets affects the large intestinal bacterial populations. European Journal of Nutrition, 56 (6), 1-14. doi: 10.1007/s00394-016-1263-4
2015
Journal Article
Soluble arabinoxylan alters digesta flow and protein digestion of red meat-containing diets in pigs
Zhang, Dagong, Williams, Barbara A., Mikkelsen, Deirdre, Li, Xiuhua, Keates, Helen L., Lisle, Allan T., Collins, Helen M., Fincher, Geoffrey B., Bird, Anthony R., Topping, David L., Gidley, Michael J. and Bryden, Wayne L. (2015). Soluble arabinoxylan alters digesta flow and protein digestion of red meat-containing diets in pigs. Nutrition, 31 (9), 1141-1147. doi: 10.1016/j.nut.2015.03.006
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
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
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
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
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
-
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
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
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