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's postition as a Teacihng and Research Acacemic contributes towards the following UN SDGs:
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 is a Microbiologist with experience in molecular microbial ecology techniques, bioinformatics and fermentation microbiology.
Deirdre has a B.Sc with First Class Honours in Microbiology (1999) and PhD in Microbiology (2005) from The University of Queensland (UQ, Australia). She worked at the Advanced Wastewater Management Centre (UQ; 2005), until moving to the Centre for Nutrition and Food Sciences (CNAFS) in 2006. She worked as Postdoctoral Research Fellowship and Research Fellow in CNAFS, Queensland Alliance for Agriculture and Food Innovation, UQ. Deirdre joined the School of Agriculture and Food Susstainability in 2019 as a Teaching and Research Academic, and is presently a Senior Lecturer in Food Science. She course coordinates and lectures FOOD2000 Food Science, FOOD3017 Food Safety & Quality Management and the work integrated learning course FOOD7021 Professional Experience. Deirdre's research is molecular microbial ecology and biopolymer science-based, aiming to provide a mechanistic understanding of how foods, diets and nutrients influence the host gut microbiota. Deirdre has 75 peer-review publications with an h-index of 26 and 2746 citations.
Deirdre is a Member of the Australian Institute of Food Science and Technology (AIFST) and sits on the Queensland Branch Committee. She is also a Member of the Australian Society for Microbiology (ASM). Deirdre is part of the International Union of Food Science and Technology (IUFOST) Food Safety Working Committee, in an education-focused role.
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
Deirdre is a passionate microbiologist, with a strong research background in molecular microbial ecology and biopolymer science (construction and fermentation of “model” dietary fibres). Her research predominantly focuses on how food components are broken down by the host’s gut microbiota, be it in human and/or monogastric animal models, and understanding their role in promoting/maintaining host health.
Specifically, hes has worked on:
i) modelling plant cell walls of cereals and grasses;
ii) investigating the fermentability of cell wall components as potential prebiotics;
iii) developing molecular microbiology techniques to investigate gut microbe-dietary fibre interactions; and
iv) investigating how do plant cell walls/dietary fibres alter the gut microbiota in terms of diversity and relative verses absolute abundances.
Over 80% of Deirdre's publicatons are in the top 25% of journals (Q1 journals) in that subject category.To date, she has 75 peer-review publications, and an h-index of 26, with 2746 citations. Her most exciting achievement was a Nature Communications publication in 2020 with CNAFS and KTH Sweden colleagues.
Works
Search Professor Deirdre Mikkelsen’s works on UQ eSpace
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
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.
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.
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
Conference Publication
Investigating the relationship between grain fibre fraction molecular structures and in vitro fermentability
Williams, B. A., Walsh, C., Liao, M. L., Pettolino, F., Mikkelsen, D., Gidley, M. J. and Bacic, A. (2012). Investigating the relationship between grain fibre fraction molecular structures and in vitro fermentability. 8th INRA-Rowett Symposium on Gut Microbiology, Clermont-Ferrand, France, 17-20 June 2012.
2012
Conference Publication
Bacterial cellulose (BC): a model system to study in vitro fermentability of plant cell wall analogues
Mikkelsen, D., Netzel, G. A., Williams, B. A. and Gidley, M. J. (2012). Bacterial cellulose (BC): a model system to study in vitro fermentability of plant cell wall analogues. 8th INRA-Rowett Symposium on Gut Microbiology, Clermont-Ferrand, France, 17 - 20 June 2012.
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
2012
Conference Publication
In vitro fermentability of purple carrot phytonutrients and effects on large intestinal microflora
Mikkelsen, D., Netzel, G. A., Williams, B. A. and Gidley, M. J. (2012). In vitro fermentability of purple carrot phytonutrients and effects on large intestinal microflora. 8th INRA-Rowett Symposium on Gut Microbiology, Clermont-Ferrand, France, 17 - 22 June 2012.
2011
Journal Article
In vitro fermentation of bacterial cellulose composites as model dietary fibers
Mikkelsen, Deirdre, Gidley, Michael J. and Williams, Barbara A. (2011). In vitro fermentation of bacterial cellulose composites as model dietary fibers. Journal of Agricultural and Food Chemistry, 59 (8), 4025-4032. doi: 10.1021/jf104855e
2011
Conference Publication
The plant cell wall: Friend or foe to anthocyanin bioaccessibility?
Padayachee, A., Netzel, G., Netzel, M., Day, L., Mikkelsen, D. and Gidley, M. (2011). The plant cell wall: Friend or foe to anthocyanin bioaccessibility?. Australian Food Science Summer School (1st, AIFST, 2011), St. Lucia, QLD, Australia, 9-11 February 2011.
2011
Book Chapter
Formation of cellulose-based composites with hemicelluloses and pectins using Gluconacetobacter fermentation
Mikkelsen, Deirdre and Gidley, Michael J. (2011). Formation of cellulose-based composites with hemicelluloses and pectins using Gluconacetobacter fermentation. The plant cell wall: methods and protocols. (pp. 197-208) edited by Zoë A. Popper. New York, United States: Springer. doi: 10.1007/978-1-61779-008-9_14
2011
Conference Publication
Characteristics and microstructural changes of fruits and vegetables after human mastication
Hoerudin, Hoerudin, Mikkelsen, Deirdre, D'Arcy, Bruce and Gidley, Mike (2011). Characteristics and microstructural changes of fruits and vegetables after human mastication. 1st Australian Food Science Summer School 2011, St Lucia, Brisbane, Australia, 9-11 February 2011. Australian Institute of Food Science and Technology (AIFST).
2011
Journal Article
In vitro fermentation kinetics and end-products of cereal arabinoxylans and (1,3;1,4)-beta-glucans by porcine feces
Williams, Barbara A., Mikkelsen, Deirdre, Le Paih, Laure and Gidley, Michael J. (2011). In vitro fermentation kinetics and end-products of cereal arabinoxylans and (1,3;1,4)-beta-glucans by porcine feces. Journal of Cereal Science, 53 (1), 53-58. doi: 10.1016/j.jcs.2010.09.003
2011
Book Chapter
Formation of Cellulose-Based Composites with Hemicelluloses and Pectins Using Gluconacetobacter Fermentation
Mikkelsen, Deirdre and Gidley, Michael J. (2011). Formation of Cellulose-Based Composites with Hemicelluloses and Pectins Using Gluconacetobacter Fermentation. The Plant Cell Wall: Methods and Protocols. (pp. not found-not found) edited by Zoë A. Popper. New Jersey, USA: Humana Press.
2010
Journal Article
Spontaneous mutation results in lower cellulose production by a Gluconacetobacter xylinus strain from Kombucha
Nguyen, Vu Tuan, Flanagan, Bernadine, Mikkelsen, Deirdre, Ramirez, Santiago, Rivas, Lucia, Gidley, Michael J. and Dykes, Gary A. (2010). Spontaneous mutation results in lower cellulose production by a Gluconacetobacter xylinus strain from Kombucha. Carbohydrate Polymers, 80 (2), 337-343. doi: 10.1016/j.carbpol.2009.11.019
2010
Conference Publication
Interactions between the plant cell wall and black carrot bioactives may affect the bioavailability of these compounds
Padayachee, A., Netzel, G., Netzel, M., Mikkelsen, D., Day, L. and Gidley, M. (2010). Interactions between the plant cell wall and black carrot bioactives may affect the bioavailability of these compounds. 43rd Annual AIFST Convention 2010, Melbourne, VIC, Australia, 25-28 July 2010. AIFST.
2010
Conference Publication
Interactions between models of the plant cell wall & black carrot bioactives may affect the bioavailability of these compounds
Padayachee, A., Netzel, G., Netzel, M., Mikkelsen, D., Day, L. and Gidley, M. (2010). Interactions between models of the plant cell wall & black carrot bioactives may affect the bioavailability of these compounds. 15th World Congress of food Science and Technology (IUFoST), Cape Town, South Africa, 22-26 August 2010. IUFoST.
Funding
Current funding
Past funding
Supervision
Availability
- Dr Deirdre Mikkelsen is:
- Available for supervision
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Supervision history
Current supervision
-
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
-
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
-
Doctor Philosophy
Evaluation of Integrated Surveillance of Antimicrobial Resistance in South and South East Asian Countries
Associate Advisor
Other advisors: Professor Peter Sly, Dr Nicholas Clark, Professor Ricardo Soares Magalhaes
-
Doctor Philosophy
The role of dopamine in the regulation of gastrointestinal health in horses with pituitary pars intermedia dysfunction.
Associate Advisor
Other advisors: Dr Justine Gibson, Dr Allison Stewart, Associate Professor François-René Bertin, Dr Viviana Gonzalez Astudillo
-
Doctor Philosophy
Soil biology impacts on sustainability and productivity of high value vegetable cropping systems
Associate Advisor
Other advisors: Dr Alwyn Williams, Professor Victor Galea
-
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
Completed supervision
-
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
-
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, Associate 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 gut microbial fermentation of models for plant dietary fibre
Associate Advisor
Other advisors: Dr Bernadine Flanagan, 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
-
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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