Associate Professor Greg Martin

  • Room: Level: 03 Room: 313
  • Building: Chemical Engineering #1
  • Campus: Parkville

Research interests

  • Biofuel production processes (Fermentation, microalgae, lignocellulose)
  • Dairy processing (Casein micelles, powder, concentration)
  • Microalgal processing (Cell disruption, lipid extraction, biomass processing)

Personal webpage


Dr Greg Martin is an Associate Professor in the Department of Chemical Engineering at The University of Melbourne. His research in the field of bioprocess engineering aims to develop fundamental understanding for application in large-scale biotechnological processes. This has included research into the bioconversion of lignocellulose to ethanol, application of bacteriophage to wastewater treatment, and investigations into the physicochemical aspects of dairy processing. He currently leads the Algal Processing Group, a research group that is developing efficient downstream processing technologies for the conversion of microalgal biomass into different bioproducts. Dr Martin's research interests include:

Microalgal processing
- Efficient large-scale cell disruption of microalgae using high pressure homogenisation
- Application of advanced lipidomic methods to microalgal biotechnology
- Development of efficient lipid extraction processes for concentrated microalgal pastes

Dairy processing
- Physicochemical behaviour of milk during membrane filtration and the manufacture and rehydration of dairy powders
- Dynamics and structure of casein micelles
- Functionalised milk streams and double emulsions

Biofuel production processes
- Recovery of triacylglycerides from microalgae for biodiesel production
- Dilute acid hydrolysis and enzymatic conversion of lignocellulose to fermentable sugars
- Recombinant bacteria for fermentation of lignocellulose-derived sugars to ethanol

Recent publications

  1. Krysiak-Baltyn K, Cavalida R, Thwaites B, Reeve PJ, Scales P, Van Den Akker B, Ong L, Martin G, Stickland A, Gras S. Comparison of physical characteristics and dewatering behaviour between granular and floccular sludges generated from the same sewage source. Journal of Water Processing Engineering. Elsevier BV. 2019, Vol. 29. DOI: 10.1016/j.jwpe.2019.100785
  2. Munir M, Nadeem M, Qureshi TM, Leong T, Gamlath CJ, Martin G, Ashokkumar M. Effects of high pressure, microwave and ultrasound processing on proteins and enzyme activity in dairy systems — A review. Innovative Food Science and Emerging Technologies. Elsevier BV. 2019, Vol. 57. DOI: 10.1016/j.ifset.2019.102192
  3. Xu X, Martin G, Kentish S. Enhanced CO2 bio-utilization with a liquid-liquid membrane contactor in a bench-scale microalgae raceway pond. Journal of CO2 Utilization. 2019, Vol. 34. DOI: 10.1016/j.jcou.2019.06.008
  4. Chen G, Leong T, Kentish S, Ashokkumar M, Martin G. Membrane Separations in the Dairy Industry. SEPARATION OF FUNCTIONAL MOLECULES IN FOOD BY MEMBRANE TECHNOLOGY. Academic Press. 2019. Editors: Galanakis CM. DOI: 10.1016/B978-0-12-815056-6.00008-5
  5. Mettu S, Yao S, Law S, Sun Z, Scales P, Ashokkumar M, Martin G. Rheological properties of concentrated slurries of harvested, incubated and ruptured Nannochloropsis sp. cells. BMC Chemical Engineering. 2019, Vol. 1, Issue 1. DOI: 10.1186/s42480-019-0011-y
  6. De Godois Baroni E, Yap KY, Webley P, Scales P, Martin G. The effect of nitrogen depletion on the cell size, shape, density and gravitational settling of Nannochloropsis salina, Chlorella sp. (marine) and Haematococcus pluvialis. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS. Elsevier. 2019, Vol. 39. DOI: 10.1016/j.algal.2019.101454
  7. Zheng Q, Martin G, Kentish S. The effects of medium salinity on the delivery of carbon dioxide to microalgae from capture solvents using a polymeric membrane system. JOURNAL OF APPLIED PHYCOLOGY. Kluwer Academic Publishers. 2019, Vol. 31, Issue 3. DOI: 10.1007/s10811-018-1676-y
  8. Halim R, Hill D, Hanssen E, Webley P, Martin G. Thermally coupled dark-anoxia incubation: A platform technology to induce auto-fermentation and thus cell-wall thinning in both nitrogen-replete and nitrogen-deplete Nannochloropsis slurries. Bioresource Technology. Elsevier Science. 2019, Vol. 290. DOI: 10.1016/j.biortech.2019.121769
  9. Halim R, Hill D, Hanssen E, Webley P, Blackburn S, Grossman AR, Posten C, Martin G. Towards sustainable microalgal biomass processing: anaerobic induction of autolytic cell-wall self-ingestion in lipid-rich Nannochloropsis slurries. GREEN CHEMISTRY. Royal Society of Chemistry. 2019, Vol. 21, Issue 11. DOI: 10.1039/c8gc03186j
  10. Li X, Mettu S, Martin G, Ashokkumar M, Lin CSK. Ultrasonic pretreatment of food waste to accelerate enzymatic hydrolysis for glucose production. ULTRASONICS SONOCHEMISTRY. Elsevier Science. 2019, Vol. 53. DOI: 10.1016/j.ultsonch.2018.12.035
  11. Li W, Leong T, Ashokkumar M, Martin G. A study of the effectiveness and energy efficiency of ultrasonic emulsification. PHYSICAL CHEMISTRY CHEMICAL PHYSICS. Royal Society of Chemistry. 2018, Vol. 20, Issue 1. DOI: 10.1039/c7cp07133g
  12. Leong T, Manickam S, Martin G, Li W, Ashokkumar M. Applications of Ultrasonic Emulsification. ULTRASONIC PRODUCTION OF NANO-EMULSIONS FOR BIOACTIVE DELIVERY IN DRUG AND FOOD APPLICATIONS. Springer Verlag. 2018. DOI: 10.1007/978-3-319-73491-0_3
  13. Krysiak-Baltyn K, Martin G, Gras S. Computational modeling of bacteriophage production for process optimization. Methods in Molecular Biology. Humana Press. 2018, Vol. 1693. Editors: Azeredo J, Sillankorva S. DOI: 10.1007/978-1-4939-7395-8_16
  14. Krysiak-Baltyn K, Martin G, Gras S. Computational Modelling of Large Scale Phage Production Using a Two-Stage Batch Process. PHARMACEUTICALS. MDPI AG. 2018, Vol. 11, Issue 2. DOI: 10.3390/ph11020031
  15. Law SQK, Halim R, Scales P, Martin G. Conversion and recovery of saponifiable lipids from microalgae using a nonpolar solvent via lipase-assisted extraction. 2nd International Conference on Alternative Fuels and Energy (ICAFE). Elsevier Science. 2018, Vol. 260. DOI: 10.1016/j.biortech.2018.03.129

View a full list of publications on the University of Melbourne’s ‘Find An Expert’ profile