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Graeme M. Walker

Professor - Zymology

  • 1937 Citations
  • 27 h-Index
1978 …2020

Research output per year

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Research Output

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2019

Data for life cycle assessment of legume biorefining for alcohol

Leinhardt, T., Black, K., Saget, S., Porto Costa, M., Chadwick, D., Rees, R. M., Williams, M., Spillane, C., Iannetta, P., Walker, G. M. & Styles, D., 31 Aug 2019, In : Data in Brief. 25, 7 p., 104242.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
42 Downloads (Pure)

Faba bean as a novel brewing adjunct: consumer evaluation

Black, K., Barnett, A., Tzioula-Clarke, A., White, P., Iannetta, P. & Walker, G. M., 10 May 2019, In : Journal of the Institute of Brewing. 125, 3, p. 310-314 5 p.

Research output: Contribution to journalArticle

Open Access
File
39 Downloads (Pure)

Just the tonic! Legume biorefining for alcohol has the potential to reduce Europe’s protein deficit and mitigate climate change

Leinhardt, T., Black, K., Saget, S., Porto Costa, M., Chadwick, D., Rees, R. M., Williams, M., Spillane, C., Iannetta, P., Walker, G. M. & Styles, D., Sep 2019, In : Environment International. 130, 11 p., 104870.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
59 Downloads (Pure)
2018

Why bean beer?

Iannetta, P. P. M., Black, K., Tziboula-Clarke, A., White, P. & Walker, G. M., 31 Dec 2018, The Pulse Magazine, Winter 2018, p. 18-19 2 p.

Research output: Contribution to specialist publicationArticle

Open Access
File
69 Downloads (Pure)
2017

Flocculation in industrial strains of Saccharomyces cerevisiae: role of cell wall polysaccharides and lectin-like receptors

Nayyar, A., Walker, G. M., Wardrop, F. & Adya, A. K., 8 May 2017, In : Journal of the Institute of Brewing. 123, 2, p. 211–218 8 p.

Research output: Contribution to journalArticle

Open Access
File
3 Citations (Scopus)
39 Downloads (Pure)

Influence of cell surface and nanomechanical properties on the flocculation ability of industrial Saccharomyces cerevisiae strains

Nayyar, A., Walker, G. M., Canetta, E., Wardrop, F. & Adya, A. K., 2 Aug 2017, In : Journal of Food Research. 6, 5, 10 p.

Research output: Contribution to journalArticle

Open Access
File
47 Downloads (Pure)
2016

Bioconversion of degraded husked sorghum grains to ethanol

Nasidi, M., Agu, R. C., Deeni, Y. Y., Giginyu, I. B. & Walker, G. M., 1 Jan 2016, In : Bioethanol. 2, 1, p. 1-11 11 p.

Research output: Contribution to journalArticle

Open Access
File
57 Downloads (Pure)

Ethanol production from brown seaweed using non-conventional yeasts

Obata, O., Akunna, J. C., Bockhorn, H. & Walker, G. M., 29 Jun 2016, In : Bioethanol. 2, 1, p. 134-145 12 p.

Research output: Contribution to journalArticle

Open Access
File
516 Downloads (Pure)

Saccharomyces cerevisiae in the production of whisk(e)y

Walker, G. M. & Hill, A. E., 20 Dec 2016, In : Beverages. 2, 4, 15 p., 38.

Research output: Contribution to journalArticle

Open Access
File
37 Downloads (Pure)

Utilization of whole sorghum crop residues for bioethanol production

Nasidi, M., Agu, R. C., Deeni, Y. Y. & Walker, G. M., 12 May 2016, In : Journal of the Institute of Brewing. 122, 2, p. 268-277 10 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
62 Downloads (Pure)
2015

Enhancing the economic potential of beans using Vicia faba L. crop performance and the use of air-classified grain components in animal feeds and brewing

Iannetta, P. P. M., James, E. K., Hawes, C., Lopez del Egido, L., Karley, A., Olukosi, O., Houdijk, J., Crampton, V., Moench, M., Palomba, G., Ianieri, J., Clark, F., Duncan, K., Squire, G. R., Ramsay, G. & Walker, G. M., Jul 2015, In : Legume Perspectives. 8, p. 21-23 3 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
91 Downloads (Pure)

Improved production of ethanol using bagasse from different sorghum cultivars

Nasidi, M., Agu, R. C., Deeni, Y. Y. & Walker, G. M., 1 Jan 2015, In : Biomass and Bioenergy. 72, p. 288-299 12 p.

Research output: Contribution to journalArticle

Open Access
File
14 Citations (Scopus)
64 Downloads (Pure)

Maximizing alcohol yields from wheat and maize and their co-products for distilling or bioethanol production

Green, D. I. G., Agu, R. C., Bringhurst, T. A., Brosnan, J. M., Jack, F. R. & Walker, G. M., 1 Jul 2015, In : Journal of the Institute of Brewing. 121, 3, p. 332-337 6 p.

Research output: Contribution to journalArticle

Open Access
File
3 Citations (Scopus)
294 Downloads (Pure)
2014

Alleviation of stuck wine fermentations using salt-preconditioned yeast

Logothetis, S., Nerantzis, E. T., Tataridis, P., Goulioti, A., Kannelis, A. & Walker, G. M., 2014, In : Journal of the Institute of Brewing. 120, 3, p. 174–182 9 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
43 Downloads (Pure)

Cell surface properties and flocculation behaviour of industrial strains of Saccharomyces cerevisiae

Nayyar, A., Walker, G., Canetta, E., Wardrop, F. & Adya, A. K., Nov 2014, In : International Journal of Applied Microbiology and Biotechnology Research. 2, 6, p. 64-72 9 p.

Research output: Contribution to journalArticle

Open Access

Correlation of cell surface properties of industrial yeast strains to their functional role in fermentations

Nayyar, A., Walker, G. M., Canetta, E., Wardrop, F. & Adya, A. K., Jun 2014, In : Yeast: A Newsletter for Persons Interested in Yeast. 63, 1, p. 5-5 1 p., V.

Research output: Contribution to journalArticle

Thermotolerance in Saccharomyces cerevisiae is linked to resistance to anhydrobiosis

Rapoport, A., Rusakova, A., Khroustalyova, G. & Walker, G. M., Nov 2014, In : Process Biochemistry. 49, 11, p. 1889-1892 4 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2013

Fermentation of stalk juices from different Nigerian sorghum cultivars to ethanol

Nasidi, M., Agu, R., Deeni, Y. & Walker, G., Aug 2013, In : Bioethanol. 1, 1, p. 20-27 8 p.

Research output: Contribution to journalArticle

Open Access
File
65 Downloads (Pure)

Lignocellulose to fuel alcohol: current trends

Walker, G. M., 26 Nov 2013, In : Microbiology Today. 40, 4, p. 150-153 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2011

Influence of cell surface characteristics on adhesion of Saccharomyces cerevisiae to the biomaterial hydroxylapatite

White, J. S. & Walker, G. M., Feb 2011, In : Antonie van Leeuwenhoek. 99, 2, p. 201-209 9 p.

Research output: Contribution to journalArticle

Open Access
File
16 Citations (Scopus)
62 Downloads (Pure)

Pichia anomala: cell physiology and biotechnology relative to other yeasts

Walker, G. M., Jan 2011, In : Antonie van Leeuwenhoek. 99, 1, p. 25-34 10 p.

Research output: Contribution to journalArticle

Open Access
File
76 Citations (Scopus)
132 Downloads (Pure)

Stimulation of bioprocesses by ultrasound

Kwiatkowska, B., Bennett, J., Akunna, J. C., Walker, G. M. & Bremner, D. H., 2011, In : Biotechnology Advances. 29, 6, p. 768-780 13 p.

Research output: Contribution to journalArticle

Open Access
File
126 Citations (Scopus)
524 Downloads (Pure)

The ideal distiller's yeast?

Walker, G. M., Bringhurst, T. A. & Brosnan, J. M., Sep 2011, In : Brewer And Distiller International. September. September 2011, p. 30-32 3 p.

Research output: Contribution to journalArticle

Open Access
File
1434 Downloads (Pure)

Williopsis saturnus yeast killer toxin does not kill Streptococcus pneumoniae

Ochigava, I., Collier, P. J., Walker, G. M. & Hakenbeck, R., Mar 2011, In : Antonie van Leeuwenhoek. 99, 3, p. 559–566 8 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
77 Downloads (Pure)

Zinc interactions with brewing yeast: impact on fermentation performance

De Nicola, R. & Walker, G. M., 2011, In : Journal of the American Society of Brewing Chemists. 69, 4, p. 214-219 6 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2010

Anaerobic digestion of distillery spent wash: influence of enzymatic pre-treatment of intact yeast cells

Mallick, P., Akunna, J. C. & Walker, G. M., Mar 2010, In : Bioresource Technology. 101, 6, p. 1681-1685 5 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Anhydrobiosis in yeast: influence of calcium and magnesium ions on yeast resistance to dehydration–rehydration

Trofimova, Y., Walker, G. M. & Rapoport, A., Jul 2010, In : FEMS Microbiology Letters. 308, 1, p. 55-61 7 p.

Research output: Contribution to journalArticle

Open Access
32 Citations (Scopus)

Bioethanol in Nigeria: comparative analysis of sugarcane and sweet sorghum as feedstock sources

Akunna, J. C., Deeni, Y. Y., Blackwood, D. J. & Walker, G. M., 2010, In : Energy and Environmental Science. 3, 10, p. 1447-1457 11 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Enhancing anaerobic digestion processes for improved biogas production

Akunna, J. C., Mallick, P. & Walker, G. M., Feb 2010, In : Journal of Solid Waste Technology and Management. 36, 1, p. 856-860 5 p.

Research output: Contribution to journalArticle

Influence of sodium chloride on wine yeast fermentation performance

Logothetis, S., Nerantzis, E. T., Gioulioti, A., Kanelis, T., Panagiotis, T. & Walker, G. M., 24 Jun 2010, In : International Journal of Wine Research. 2, p. 35-42 8 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
118 Downloads (Pure)
2009

Accumulation and cellular distribution of zinc by brewing yeast

De Nicola, R. & Walker, G. M., Apr 2009, In : Enzyme and Microbial Technology. 44, 4, p. 210-216 7 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Emulsifying properties of a glycoprotein extract produced by a marine Flexibacter species strain TG382

Gutierrez, T., Leo, V. V., Walker, G. M. & Green, D. H., Jul 2009, In : Enzyme and Microbial Technology. 45, 1, p. 53-57 5 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Evaluation of a Brazilian fuel alcohol yeast strain for Scotch whisky fermentations

de Amorim Neto, H. B., Yohannan, B. K., Bringhurst, T. A., Brosnan, J. M., Pearson, S. Y., Walker, J. W. & Walker, G. M., 2009, In : Journal of the Institute of Brewing. 115, 3, p. 198-207 10 p.

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)
81 Downloads (Pure)

Influence of zinc on distiller’s yeast: cellular accumulation of zinc and impact on spirit congeners

De Nicola, R., Hall, N., Melville, S. G. & Walker, G. M., 2009, In : Journal of the Institute of Brewing. 115, 3, p. 265–271 7 p.

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)
93 Downloads (Pure)
14 Citations (Scopus)

Zinc accumulation and utilisation by wine yeasts

De Nicola, R., Hall, N., Bollag, T., Thermogiannis, G. & Walker, G. M., 27 Feb 2009, In : International Journal of Wine Research. 1, p. 85-94 10 p.

Research output: Contribution to journalArticle

Open Access
File
10 Citations (Scopus)
25 Downloads (Pure)
2008

Bioconversion of brewer’s spent grains to bioethanol

White, J. S., Yohannan, B. K. & Walker, G. M., Nov 2008, In : FEMS Yeast Research. 8, 7, p. 1175 - 1184 10 p.

Research output: Contribution to journalArticle

Open Access
54 Citations (Scopus)

Biodiversity of yeasts isolated from the indigenous forest of Argan (Argania spinosa (L.) Skeels) in Morocco

Ahansal, L., Sassi, A. B., Martini, A., Vaughan-Martini, A., Walker, G. M. & Boussaid, A., Jun 2008, In : World Journal of Microbiology and Biotechnology. 24, 6, p. 777-782 6 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Detoxification of olive mill wastewaters by Moroccan yeast isolates

Sassi, A. B., Ouazzani, N., Walker, G. M., Ibnsouda, S., El Mzibri, M. E. & Boussaid, A., Jun 2008, In : Biodegradation. 19, 3, p. 337-346 10 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)
2007

Effect of salt hyperosmotic stress on yeast cell viability

Logothetis, S., Walker, G. M. & Nerantzis, E. T., 2007, In : Proceedings for Natural Sciences of Matica Srpska Novi Sad. 113, p. 271-284 14 p.

Research output: Contribution to journalArticle

Open Access

Fuelling the future: the science behind fuel alcohol yeast fermentations

Walker, G. M. & White, J., 2007, Brewer and Distiller International, 3, 6, p. 23-27 5 p.

Research output: Contribution to specialist publicationArticle

Physiological and transcriptional responses of Saccharomyces cerevisiae to zinc limitation in chemostat cultures

Nicola, R. D., Hazelwood, L. A., Hulster, E. A. F. D., Walsh, M. C., Knijnenburg, T. A., Reinders, M. J. T., Walker, G. M., Pronk, J. T., Daran, J-M. & Daran-Lapujade, P., Dec 2007, In : Applied and Environmental Microbiology. 73, 23, p. 7680-7692 13 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)
2006

A comparison of olive oil mill wastewaters (OMW) from three different processes in Morocco

Sassi, A. B., Boularbah, A., Jaouad, A., Walker, G. M. & Boussaid, A., Jan 2006, In : Process Biochemistry. 41, 1, p. 74-78 5 p.

Research output: Contribution to journalArticle

89 Citations (Scopus)

Atomic force microscopic study of the effects of ethanol on yeast cell surface morphology

Canetta, E., Adya, A. K. & Walker, G. M., Feb 2006, In : FEMS Microbiology Letters. 255, 2, p. 308-315 8 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Atomic force microscopic study of the influence of physical stresses on Saccharomyces cerevisiae and Schizosaccharomyces pombe

Adya, A. K., Canetta, E. & Walker, G. M., 1 Jan 2006, In : FEMS Yeast Research. 6, 1, p. 120-128 9 p.

Research output: Contribution to journalArticle

34 Citations (Scopus)

Correlating yeast cell stress physiology to changes in the cell surface morphology: atomic force microscopic studies

Canetta, E., Walker, G. M. & Adya, A. K., 6 Jul 2006, In : TheScientificWorldJOURNAL. 6, p. 777-780 4 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
81 Downloads (Pure)

Isolation and characterisation of Sri Lankan yeast germplasm and its evaluation for alcohol production

Chandrasena, G., Keerthipala, A. P. & Walker, G. M., 2006, In : Journal of the Institute of Brewing. 112, 4, p. 302-307 6 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
100 Downloads (Pure)
2005

Physiological responses of pressed baker’s yeast cells pre-treated with citric, malic and succinic acids

Peres, M. F. S., Tininis, C. R. C. S., Souza, C. S., Walker, G. M. & Laluce, C., Jun 2005, In : World Journal of Microbiology and Biotechnology. 21, 4, p. 537-543 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2004

Metals in yeast fermentation processes

Walker, G. M., 14 Jul 2004, In : Advances in Applied Microbiology. 54, p. 197-229 33 p.

Research output: Contribution to journalArticle

Open Access
File
66 Citations (Scopus)
467 Downloads (Pure)