Diane is a Principal Lecturer in Environmental Health/Biology; she has keen interests in the fields of environment and biotechnology. She is the programme leader of MSc Environmental Pollution Control which is accredited by the Institution of Environmental Sciences. Diane is the Honorary Secretary of the Committee of the Heads of Environmental Sciences in the UK and a Fellow of the Institution of Environmental Sciences. She is also a Committee Member of the Society of Chemical Industry London Region Group.

Her reserach focuses on the role of microorganisms in pollution control and bioremediation.


BSc (Hons), MSc, PhD, PgCHE, FHEA, MSB, CBiol, SCImem, FIEnvSci

Selected publications

Pantoja Munoz L., Purchase D., Jones H., Feldmann J. and Garelick H. 2014. Enhanced determination of As-phytochelatin complexes in Chlorella vulgaris using focused sonication for extraction of water-soluble species. Analytical Methods 6 (3), 791-797. DOI: 10.1039/C3AY41629A.

Okoroma E.A., Purchase D., Garelick H., Morris R., Neale M.H., Windl O. and Abiola O.O. 2013. Enzymatic formulation capable of degrading scrapie prion under mild digestion conditions. PLOS Onehttp://dx.plos.org/10.1371/journal.pone.0068099. DOI: 10.1371/journal.pone.0068099.

Okoroma E.A., Garelick H., Abiola O. and Purchase D. 2012. Identification and characterisation of a Bacillus licheniformis strain with profound keratinase activity for degradation of melanised feather. International Biodeterioration & Biodegradation. 74, 54-60. DOI: 10.1016/j.ibiod.2012.07.013.

Radiar A.R.B. and Purchase D. 2012. Mathematical models to predict soil heavy metal toxicity in the 2012 Olympic site. International Journal of Environmental Science and Technology9, 219-226. DOI:10.1007/s13762-012-0027-9.

Jiang Y., Jones H., Garelick H. and Purchase D. 2011. Effects of arsenate (As5+) on growth and production of glutathione (GSH) and phytochelatins (PCs) in Chlorella vulgaris. International Journal of Phytoremediation13, 834-844. DOI:10.1080/15226514.2010.525560.

Purchase D., Scholes L.N.L., Revitt D.M. and Shutes R.B.E. 2009. Effects of temperature on metal tolerance and the accumulation of Zn and Pb by metal-tolerant fungi isolated from urban runoff treatment wetlands. Journal of Applied Microbiology 106, 1163-1174.

Devere E. and Purchase D. 2007. Effectiveness of domestic antibacterial products in decontaminating food contact surfaces. Food Microbiology 24, 425-430.

Selected conference speeches, papers and posters

Munoz L.P., Purchase D., Jones H. and Garelick H. 2012. The occurrence of Arsenic-glutathione complesex in Chlorella vulgaris: off-line elemental (ICP-MS) and molecular (ES-MS) mass spectrometric detection for liquid chromatographic separation. 6th SETAC World Congress, Berlin 20-24 May, 2012.

Purchase D. 2011. Keynote Speech: 'Beauvaria, Biosurfactant and Bacillus - Microbial Potential in Remediating Pollutants'. 1st International Microorganism Conference: "Microorganisms facing their environment". Paris, France, 27-28 October, 2011.

Okoroma, E.A, Purchase D., Garelick H., Morris R. and Abiola O. 2011. Degradation of infective prion protein by a novel enzymatic composition. PRION 2011, Montreal, 16-19 May, 2011.

Okoroma, E.A, Purchase D., Garelick H. and Abiola O. 2011.A novel enzymatic composition effective for prion degradation. Society for General Microbiology, Spring Conference, Harrogate 11-14 April, 2011.

Okoroma, E.A, Purchase D., Garelick H., Jen A., Morris R. and Abiola O. 2009. Degradation of scrapie infected brain homogenate by a novel bacterial keratinase. Prion 2009, Chalkidiki, Greece, 23-25 September 2009.

Okoroma, E.A, Purchase D., Garelick H., Jen A., Morris R. and Abiola O. 2009. Temperature and pH interaction in keratinase production of a novel feather degrading bacteria. 10th International Symposium on Bacterial Genetics and Ecology, Uppsala, Sweden, 15-19 June 2009.

Okoroma EA, Purchase D., Garelick H., Abiola A. and Abiola O. 2009. Keratinases and Prion inactivation: Possibilities from keratin degradation. Canada 3rd Annual Prion Research Conference PrPCANADA 2009, Alberta, Canada, 1-3 March 2009.

Purchase D., Scholes L., Revitt M. and Shutes B. 2008. Metal-tolerance in two fungi from constructed wetlands treating urban runoff. EC COST Action 859 Meeting - Plant uptake/exclusion and translocation of nutrients and contaminants, Slovakia, 22-24 May, 2008.

Languages spoken

Diane is bilingual and fluent in Chinese.

Diane teaches on the MSc Environmental Pollution Control and BSc Biosciences programmes. She has special interestes in contaminated land and biotechnology, in particular the use of microorganisms to bioremediate environmental pollutants.

Diane has a keen interest in the field of environmental remediation. She has published widely and supervised a number of PhD students on:

  • the role of microorganisms in pollution control (e.g. removal of heavy metals using microalgae; microbial enzymatic degradation of prion protein; application of biosurfactants to remediation environmental pollutants)
  • the removal of heavy metals in constructed wetlands
  • microbial contamination in the domestic environment

Diane is an Executive Officer of the Committee of Heads of Environmental Sciences (CHES) - CHES supports and promotes the advancement of environmental sciences teaching, learning, knowledge exchange, research and scholarship in the UK and international higher and further education sectors. Diane is the author of teh monthly newsletter for the committee and has executive responsibility in adminstering the strategic plans.

Through CHES and as a Fellow of the Institution of Environmental Sciences (IES) and Fellow of the Higher Education Academy (HEA), Diane engages extensively with the professional bodies and practitioners in the environmental area. She has organised CHES Annual Meeting and Conferences in association with the HEA and written for 'Environmental Scientist' (an IES journal).

She has been appointed to the QAA's Earth Science, Environmental Sciences and Environmental Study Subject Benchmark Review panel in 2014.

Diane also collaborates closely with the Environmental Agency and local authories on pollution projects for students on the MSc Environmental Pollution Control programme.

As a committee member of the London Region Group of the Society of Chemical Industry, Diane promotes and fosters communications between industry, business and academia. She involves in the organisation of regular and dynamic schedule of activites throughout the year to publicise science and enable networking opportunities.