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Dr Deirdre Mikkelsen
Dr

Deirdre Mikkelsen

Email: 
Phone: 
+61 7 334 69642

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

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

129 works between 2002 and 2025

61 - 80 of 129 works

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

Microbial enzymatic degradation of tamarind galactoxyloglucan and wheat arabinoxylan by a porcine faecal inoculum

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.

Hydrogels of bacterial cellulose and wood hemicelluloses as a model of plant secondary cell walls

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

High Molecular Weight Mixed-Linkage Glucan as a Mechanical and Hydration Modulator of Bacterial Cellulose: Characterization by Advanced NMR Spectroscopy

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

Extracellular depolymerisation triggers fermentation of tamarind xyloglucan and wheat arabinoxylan by a porcine faecal inoculum

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

Mechanical properties of bacterial cellulose synthesised by diverse strains of the genus Komagataeibacter

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

Food starch structure impacts gut microbiome composition

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

Mechanisms of utilisation of arabinoxylans by a porcine faecal inoculum: competition and co-operation

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

Gut fermentation of dietary fibres: physico-chemistry of plant cell walls and implications for health

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

Multi-scale characterisation of deuterated cellulose composite hydrogels reveals evidence for different interaction mechanisms with arabinoxylan, mixed-linkage glucan and xyloglucan

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

Effects of tea extracts on the colonization behaviour of Candida species: attachment inhibition and biofilm enhancement

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

Optimizing prednisolone loading into distiller’s dried grain kafirin microparticles, and in vitro release for oral delivery

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

Characterisation of bacterial cellulose from diverse Komagataeibacter strains and their application to construct plant cell wall analogues

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

Aluminium effects on mechanical properties of cell wall analogues

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

Porphyromonas loveana sp. Nov., isolated from the oral cavity of Australian marsupials

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

Multi-scale model for the hierarchical architecture of native cellulose hydrogels

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

Investigation of the micro- and nano-scale architecture of cellulose hydrogels with plant cell wall polysaccharides: a combined USANS/SANS study

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

Soluble arabinoxylan enhances large intestinal microbial health biomarkers in pigs fed a red meat-containing diet

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

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

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

Addition of arabinoxylan and mixed linkage glucans in porcine diets affects the large intestinal bacterial populations

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

Soluble arabinoxylan alters digesta flow and protein digestion of red meat-containing diets in pigs

Funding

Current funding

  • 2024 - 2027
    Comprehensive use of whole body computed tomography, microbiome and metabolomics analysis to measure the effects of dietary and exercise interventions on body fat content in dogs
    Hill's Pet Nutrition, Inc
    Open grant
  • 2022 - 2027
    Sustainable Precision Feeding in Broiler Chickens in Australia
    AgriFutures Chicken Meat Program Nutrition, Gut Health and Environment Research Program
    Open grant
  • 2022 - 2026
    Point-of-care microbiome therapy in koalas during antimicrobial treatment for Chlamydia
    Morris Animal Foundation
    Open grant

Past funding

  • 2023 - 2025
    Evaluation of bioprotective bacteria to reduce Campylobacter on raw chicken meat at the end of primary processing (Agrifutures funded project led by QLD DAF)
    Queensland Department of Agriculture, Fisheries and Forestry
    Open grant
  • 2021 - 2024
    Optimising and industrialising black soldier fly (BSF) production: redirecting food waste to livestock feed production using insects
    Fight Food Waste CRC
    Open grant
  • 2020 - 2023
    Dopamine as a new diagnostic tool for horses with pituitary pars intermedia dysfunction and its effect on the equine intestinal microbiota
    Australian Companion Animal Health Foundation
    Open grant
  • 2019 - 2021
    Nasal microbiota in shelter dogs and carriage of Staphylococcus spp.
    Canine Research Foundation
    Open grant
  • 2014
    Automated in vitro fermentation gas measurement
    UQ Major Equipment and Infrastructure
    Open grant
  • 2012 - 2017
    Use of plant derived compounds to condition piglet intake at weaning and reduce post-weaning use of therapeutics
    CRC for High Integrity Australian Pork
    Open grant
  • 2010 - 2012
    ResTeach 2010 0.2 FTE School of Land,Crop and Food Sciences
    UQ ResTeach
    Open grant

Supervision

Availability

Dr Deirdre Mikkelsen is:
Available for supervision

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Supervision history

Current supervision

Completed supervision

Media

Enquiries

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