Dr Tony Howes
Dr

Tony Howes

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Background

Biography:

Tony Howes graduated from UQ in 1983 with a degree in chemical engineering, and after 6 months working on a novel fluid bed retort system for oil shale went to Cambridge, UK, where he worked with Malcolm Mackley as his first PhD student on what is now the “Oscillating Baffled Reactor”. His dissertation was awarded the 1988 Danckwerts-Maxwell prize for best thesis in that year. A postdoctoral year at Brown University working on patterns in fluid data sets was followed by 3 ½ years in ICI’s Corporate Colloid Science Group, where he worked on theory and application of a novel atomiser.

Since 1993 Tony has been at The University of Queensland teaching, supervising and doing research. His work (largely in collaboration with Bhesh Bhandari in Food Science) on sticky droplet spray drying has been extensively published and cited – at present Bhandari and Howes papers are in the top-10 most cited in Drying Technology, Journal of Food Engineering and International Journal of Food Properties.

Tony has also worked on a variety of other particle problems, including solid state fermentation, regimes in rotating drums and prilling. Following work on sticky mud particles he was heavily involved in local water quality issues, and sat on the Scientific Expert Panel of the Healthy Waterways Partnership in South East Queensland.

At UQ he co-ordinated an innovative programme where students are placed in industry for a research project, and actively reflect on their learning and interact with UQ staff while in industry. In 2008 he was nominated for a University Teaching Excellence Award for his efforts on this programme.

Research:

My research focus is on spray drying, especially of sticky or potentially sticky foods. With key collaborators (Prof. Bhesh Bhandari, UQ, A.Prof Benu Adhikari University of Ballarat) we have developed rules and understanding of the role of sugars, proteins and other additives on the drying of sugar rich foods, including fruit juices, honey and milk products.

My general interests are in the modelling and physical aspects of these systems.

Teaching and Learning:

Teaching: Engineering Thermodynamics (1st year)

Education Research: The role of Work Integrated Learning in the BE and ME programmes.

Projects:

  1. Spray drying at elevated temperatures
  2. API crystallisation modelling
  3. Role of proteins and additives in food spray drying
  4. Morphology development in spray drying

Availability

Dr Tony Howes is:
Available for supervision
Media expert

Qualifications

  • Bachelor (Honours) of Engineering, The University of Queensland
  • Doctor of Philosophy, University of Cambridge
  • Postgraduate Diploma in Education, The University of Queensland

Search Professor Tony Howes’s works on UQ eSpace

164 works between 1990 and 2024
All (164) Journal Article (114) Book Chapter (2) Conference Publication (48)

21 - 40 of 164 works

2016

Journal Article

Encapsulation of CO2 into amorphous alpha-cyclodextrin powder at different moisture contents - part 1: encapsulation capacity and stability of inclusion complexes

Ho, Thao M., Howes, Tony and Bhandari, Bhesh R. (2016). Encapsulation of CO2 into amorphous alpha-cyclodextrin powder at different moisture contents - part 1: encapsulation capacity and stability of inclusion complexes. Food Chemistry, 203, 348-355. doi: 10.1016/j.foodchem.2016.02.076

Encapsulation of CO2 into amorphous alpha-cyclodextrin powder at different moisture contents - part 1: encapsulation capacity and stability of inclusion complexes

2016

Journal Article

Method of measurement of CO2 adsorbed into alpha-Cyclodextrin by infra-red CO2 probe

Ho, Thao M., Tuyen, Truong, Howes, Tony and Bhandari, Bhesh R. (2016). Method of measurement of CO2 adsorbed into alpha-Cyclodextrin by infra-red CO2 probe. International Journal of Food Properties, 19 (8) 012, 1696-1707. doi: 10.1080/10942912.2015.1084005

Method of measurement of CO2 adsorbed into alpha-Cyclodextrin by infra-red CO2 probe

2015

Journal Article

Encapsulation of CO<inf>2</inf> into amorphous and crystalline α-cyclodextrin powders and the characterization of the complexes formed

Ho, Thao M., Howes, Tony and Bhandari, Bhesh R. (2015). Encapsulation of CO2 into amorphous and crystalline α-cyclodextrin powders and the characterization of the complexes formed. Food Chemistry, 187, 407-415. doi: 10.1016/j.foodchem.2015.04.094

Encapsulation of CO<inf>2</inf> into amorphous and crystalline α-cyclodextrin powders and the characterization of the complexes formed

2015

Journal Article

Characterization of crystalline and spray-dried amorphous α-cyclodextrin powders

Ho, Thao M., Howes, Tony and Bhandari, Bhesh R. (2015). Characterization of crystalline and spray-dried amorphous α-cyclodextrin powders. Powder Technology, 284 (5), 585-594. doi: 10.1016/j.powtec.2015.06.027

Characterization of crystalline and spray-dried amorphous α-cyclodextrin powders

2015

Journal Article

A quantitative review of the transition salt concentration for inhibiting bubble coalescence

Firouzi, Mahshid, Howes, Tony and Nguyen, Anh V. (2015). A quantitative review of the transition salt concentration for inhibiting bubble coalescence. Advances in Colloid and Interface Science, 222, 305-318. doi: 10.1016/j.cis.2014.07.005

A quantitative review of the transition salt concentration for inhibiting bubble coalescence

2015

Journal Article

The metastability and nucleation thresholds of ibuprofen in ethanol and water-ethanol mixtures

Rashid, Abdur., White, Edward T., Howes, Tony., Litster, James D. and Marziano, Ivan. (2015). The metastability and nucleation thresholds of ibuprofen in ethanol and water-ethanol mixtures. International Journal of Chemical Engineering, 2015 560930, 1-7. doi: 10.1155/2015/560930

The metastability and nucleation thresholds of ibuprofen in ethanol and water-ethanol mixtures

2014

Journal Article

Effect of solvent composition and temperature on the solubility of ibuprofen in aqueous ethanol

Rashid, Abdur, White, Edward T., Howes, Tony, Litster, James D. and Marziano, Ivan (2014). Effect of solvent composition and temperature on the solubility of ibuprofen in aqueous ethanol. Journal of Chemical and Engineering Data, 59 (9), 2699-2703. doi: 10.1021/je400819z

Effect of solvent composition and temperature on the solubility of ibuprofen in aqueous ethanol

2014

Journal Article

Erratum: Effect of surface tension and viscosity on the surface stickiness of carbohydrate and protein solutions (Journal of Food Engineering (2007) 79 (1136-1143))

Adhikari, B., Howes, T., Shrestha, A. and Bhandari, B. R. (2014). Erratum: Effect of surface tension and viscosity on the surface stickiness of carbohydrate and protein solutions (Journal of Food Engineering (2007) 79 (1136-1143)). Journal of Food Engineering, 129, 53-53. doi: 10.1016/j.jfoodeng.2013.12.028

Erratum: Effect of surface tension and viscosity on the surface stickiness of carbohydrate and protein solutions (Journal of Food Engineering (2007) 79 (1136-1143))

2014

Journal Article

Erratum to Characterization of the Surface Stickiness of Fructose-Maltodextrin Solutions During Drying (Drying Technology, (2003), 21, 1 (17-34), 10.1081/DRT-120017281)

Adhikari, B., Howes, T., Bhandari, B. R. and Truong, V. (2014). Erratum to Characterization of the Surface Stickiness of Fructose-Maltodextrin Solutions During Drying (Drying Technology, (2003), 21, 1 (17-34), 10.1081/DRT-120017281). Drying Technology, 32 (3), 371-371. doi: 10.1080/07373937.2013.873306

Erratum to Characterization of the Surface Stickiness of Fructose-Maltodextrin Solutions During Drying (Drying Technology, (2003), 21, 1 (17-34), 10.1081/DRT-120017281)

2014

Conference Publication

An Analysis of Refractory Concrete Drying and a Mechanism for Explosive Spalling

Palmer, Greg, Cobos, Juan, Millard, James, Howes, Tony and Ge, Edison (2014). An Analysis of Refractory Concrete Drying and a Mechanism for Explosive Spalling. 13th Unified International Technical Conference on Refractories (UNITECR), Victoria, Britishe Columbia, Canada, 10-13 September 2013. Hoboken, NJ United States: John Wiley and Sons. doi: 10.1002/9781118837009.ch149

An Analysis of Refractory Concrete Drying and a Mechanism for Explosive Spalling

2014

Journal Article

Encapsulation of gases in powder solid matrices and their applications: A review

Ho, Thao M., Howes, Tony and Bhandari, Bhesh R. (2014). Encapsulation of gases in powder solid matrices and their applications: A review. Powder Technology, 259, 87-108. doi: 10.1016/j.powtec.2014.03.054

Encapsulation of gases in powder solid matrices and their applications: A review

2013

Journal Article

Erratum; Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation (Food Chemistry (2013)128(1003-16))

Jayasundera, Mithila, Adhikari, Benu, Howes, Tony and Aldred, Peter (2013). Erratum; Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation (Food Chemistry (2013)128(1003-16)). Food Chemistry, 151, 161-161. doi: 10.1016/j.foodchem.2013.11.017

Erratum; Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation (Food Chemistry (2013)128(1003-16))

2013

Journal Article

Influence of particle size on the direct compression of ibuprofen and its binary mixtures

Liu, L. X., Marziano, I., Bentham, A. C., Litster, J. D., White, E. T. and Howes, T. (2013). Influence of particle size on the direct compression of ibuprofen and its binary mixtures. Powder Technology, 240 (2), 66-73. doi: 10.1016/j.powtec.2012.07.006

Influence of particle size on the direct compression of ibuprofen and its binary mixtures

2013

Journal Article

Effects of Emulsification of Fat on the Surface Tension of Protein Solutions and Surface Properties of the Resultant Spray-Dried Particles

Xu, Yun Yun, Howes, Tony, Adhikari, Benu and Bhandari, Bhesh (2013). Effects of Emulsification of Fat on the Surface Tension of Protein Solutions and Surface Properties of the Resultant Spray-Dried Particles. Drying Technology, 31 (16), 1939-1950. doi: 10.1080/07373937.2013.802331

Effects of Emulsification of Fat on the Surface Tension of Protein Solutions and Surface Properties of the Resultant Spray-Dried Particles

2013

Conference Publication

Stakeholders' perspectives of a work-integrated learning program: the Chemical Engineering Practice School

Thonglek, Saranya, Ku, Hong-ming, Kavanagh, Lydia and Howes, Tony (2013). Stakeholders' perspectives of a work-integrated learning program: the Chemical Engineering Practice School. AAEE 2013: 24th Annual Conference of the Australasian Association for Engineering Education, Gold Coast, QLD, Australia, 8-11 December, 2013. Nathan, QLD, Australia: Griffith School of Engineering, Griffith University.

Stakeholders' perspectives of a work-integrated learning program: the Chemical Engineering Practice School

2012

Journal Article

Investigation of relationship between surface tension of feed solution containing various proteins and surface composition and morphology of powder particles

Xu, Yun Yun, Howes, Tony, Adhikari, Benu and Bhandari, Bhesh (2012). Investigation of relationship between surface tension of feed solution containing various proteins and surface composition and morphology of powder particles. Drying Technology, 30 (14), 1548-1562. doi: 10.1080/07373937.2012.696571

Investigation of relationship between surface tension of feed solution containing various proteins and surface composition and morphology of powder particles

2012

Journal Article

Effect of shear rate and oxygen stresses on the survival of Lactococcus lactis during the atomization and drying stages of spray drying: a laboratory and pilot scale study

Ghandi, Amir, Powell, Ian B., Howes, Tony, Chen, Xiao Dong and Adhikari, Benu (2012). Effect of shear rate and oxygen stresses on the survival of Lactococcus lactis during the atomization and drying stages of spray drying: a laboratory and pilot scale study. Journal of Food Engineering, 113 (2), 194-200. doi: 10.1016/j.jfoodeng.2012.06.005

Effect of shear rate and oxygen stresses on the survival of Lactococcus lactis during the atomization and drying stages of spray drying: a laboratory and pilot scale study

2012

Journal Article

Flowability of binary mixtures of commercial and reprocessed ibuprofen through high shear wet milling (HSWM) with lactose

Liu, L. X., Rashid, A., Marziano, I., White, E. T., Howes, T. and Litster, J. D. (2012). Flowability of binary mixtures of commercial and reprocessed ibuprofen through high shear wet milling (HSWM) with lactose. Advanced Powder Technology, 23 (4), 454-458. doi: 10.1016/j.apt.2012.03.006

Flowability of binary mixtures of commercial and reprocessed ibuprofen through high shear wet milling (HSWM) with lactose

2012

Journal Article

Growth rates of ibuprofen crystals grown from ethanol and aqueous ethanol

Rashid, A., White, E. T., Howes, T., Litster, J. D. and Marziano, I. (2012). Growth rates of ibuprofen crystals grown from ethanol and aqueous ethanol. Chemical Engineering Research and Design, 90 (1), 158-161. doi: 10.1016/j.cherd.2011.08.003

Growth rates of ibuprofen crystals grown from ethanol and aqueous ethanol

2011

Journal Article

Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation

Jayasundera, Mithila, Adhikari, Benu, Howes, Tony and Aldred, Peter (2011). Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation. Food Chemistry, 128 (4), 1003-1016. doi: 10.1016/j.foodchem.2011.04.006

Surface protein coverage and its implications on spray-drying of model sugar-rich foods: Solubility, powder production and characterisation

Past funding

  • 2006 - 2011
    Engineering particles for pharmaceutical formulation
    Pfizer Pty Ltd
    Open grant

Availability

Dr Tony Howes is:
Available for supervision

Before you email them, read our advice on how to contact a supervisor.

Available projects

  • A simple model for coastalwaterway management

    This research project is part of a larger Coastal Co-operative Research Centre project on the interface between modelling, monitoring and management in coastal waterways. Monitoring is essential for determining the water quality and ecosystem health of waterways. However, the are significant constraints on the design and operation of these programs due to cost and resource limitations. Furthermore, there are minimum requirements on the amount of data that is necessary to provide statistical confidence. This research project will aim to overcome some of these limitations by investigating the use of simple models for the design and interpretation of water quality monitoring data.

    Funds are available to top-up an APA or other scholarship by up to $5000 p.a. Importantly, the successful student will have an operating budget of up to $5000 p.a. and similar support for professional development, (to June 2006). The project involves close collaboration with the Queensland Environmental Protection Agency as well as a range of other stakeholders.

    Students will need an honours degree in a suitable field (Science, Engineering) and an interest in modelling and water quality issues.

    For more details contact Tony Howes, School of Engineering, The University of Queensland (phone (07) 3365 4262, email tonyh@uq.edu.au)

  • Design of a PID controller for a drying rig

    We presently have apparatus which blows hot, dry air over a single droplet, and we obtain the drying kinetics of the drying through computer measurements of the droplet temperature and weight.

    We have a project which looks at improving the control of the in-coming air stream temperature and humidity, which at present is manually set by the user and monitored. In particular, we would like to look at using the data acquisition card and software in the computer to control the heating and humid air flow rates in order to perform this control.

    The project would suit a student interested in control or data acquisition.

Supervision history

Completed supervision

Enquiries

Contact Dr Tony Howes directly for media enquiries about:

  • Atomisation - chemical engeering
  • Coalescence - chemical engineering
  • Flocculation - chemical engineering
  • Fluid mixing - chemical engineering
  • Spray drying - chemical engineering

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