COMPLETE PUBLICATION LIST : J.C. DU PREEZ

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COMPLETE PUBLICATION LIST : J.C. DU PREEZ A. Publications in international journals 1. Du Preez, J.C. and P.M. Lategan. 1976. Gas chromatographic determination of C 2 -C 5 fatty acids in aqueous media with a Porapak N column. J. Chromatogr. 124: 63-65. 2. Du Preez, J.C. and P.M. Lategan. 1977. Microbial treatment of an industrial effluent containing volatile fatty acids. S. Afr. J. Sci. 73: 349-351. 3. Du Preez, J.C. and P.M. Lategan. 1978. Gas chromatographic analysis of C 2 -C 5 fatty acids in aqueous media using Carbopack B/Carbowax 20M/phosphoric acid. J. Chromatogr. 159: 259-262. 4. Lategan, P.M., J.C. du Preez and H.J. Potgieter. 1978. Preliminary findings on the characterization of bacteria causing mastitis by gas chromatography. Br. vet. J. 134: 342-349. 5. Du Preez, J.C. and D.F. Toerien. 1978. The effect of temperature on the growth of Acinetobacter calcoaceticus. Water SA 4: 10-13. 6. Lategan, P.M., S.C. Erasmus and J.C. du Preez. 1981. Characterization of pathogenic species of Candida by gas chromatography: Preliminary findings. J. Med. Microbiol. 14: 219-222. 7. Du Preez, J.C., D.F. Toerien and P.M. Lategan. 1981. Growth parameters of Acinetobacter calcoaceticus on acetate and ethanol. Eur. J. Appl. Microbiol. Biotechnol. 13: 45-53. 8. Kilian, S.G., B.A. Prior, H.J. Potgieter and J.C. du Preez. 1983. The utilization of glucose and cellobiose by Candida wickerhamii. Eur. J. Appl. Microbiol. Biotechnol. 17: 281-286. 9. Kilian, S.G., B.A. Prior, I.S. Pretorius, J.C. du Preez, J.J. Venter and H.J. Potgieter. 1983. Nutritional, temperature, ph and oxygen requirements of Candida wickerhamii. Eur. J. Appl. Microbiol. Biotechnol. 17: 334-338. 10. Du Preez, J.C. and J.P. van der Walt. 1983. Fermentation of D-xylose to ethanol by a strain of Candida shehatae. Biotechnol. Lett. 5: 357-362. ISI 5-yr journal impact factor: 1.676 11. Du Preez, J.C., B.A. Prior and A.M.T. Monteiro. 1984. The effect of aeration on xylose fermentation by Candida shehatae and Pachysolen tannophilus: A comparative study. Appl. Microbiol. Biotechnol. 19: 261-266. 12. Du Preez, J.C., P.M. Lategan and D.F. Toerien. 1984. Influence of the growth rate on the macromolecular composition of Acinetobacter calcoaceticus in carbon-limited chemostat culture. FEMS Microbiol. Lett. 23: 71-75. 13. Watson, N.E., B.A. Prior, J.C. du Preez and P.M. Lategan. 1984. Oxygen requirements for D- xylose fermentation to ethanol and polyols by Pachysolen tannophilus. Enzyme Microb. Technol. 6: 447-450. 14. Du Preez, J.C., P.M. Lategan and D.F. Toerien. 1985. Utilization of short chain monocarboxylic acids in an efluent of a petrochemical industry by Acinetobacter calcoaceticus. Biotechnol. Bioeng. 27: 128-131. 15. Du Preez, J.C. and B.A. Prior. 1985. A quantitative screening of some xylose-fermenting yeast isolates. Biotechnol. Lett. 7: 241-246. 16. Du Preez, J.C., J.L.F. Kock, A.M.T. Monteiro and B.A. Prior. 1985. The vitamin requirements of Candida shehatae for xylose fermentation. FEMS Microbiol. Lett. 28: 271-275. 17. Du Preez, J.C., F. de Jong, P.J. Botes and P.M. Lategan. 1985. Fermentation alcohol from grain sorghum starch. Biomass 8: 101-117.

18. Du Preez, J.C., M. Bosch and B.A. Prior. 1986. Fermentation of hexose and pentose sugars by Candida shehatae and Pichia stipitis. Appl. Microbiol. Biotechnol. 23: 228-233. 19. Du Preez, J.C., M. Bosch and B.A. Prior. 1986. Xylose fermentation by Candida shehatae and Pichia stipitis: Effects of ph, temperature and substrate concentration. Enzyme Microb. Technol. 8: 360-364. 20. Kenealy, W., E. Zaady, J.C. du Preez, B. Stieglitz and I. Goldberg. 1986. Biochemical aspects of fumaric acid accumulation by Rhizopus arrhizus. Appl. Environ. Microbiol. 52: 128-133. 21. Du Preez, J.C., M. Bosch and B.A. Prior. 1987. Temperature profiles of growth and ethanol tolerance of the xylose-fermenting yeasts Candida shehatae and Pichia stipitis. Appl. Microbiol. Biotechnol. 25: 521-535. 22. De Jong, F.M., J.C. du Preez and P.M. Lategan. 1987. Effect of the polyphenol content of grain sorghum on alcoholic fermentation. Biomass 12: 57-70. 23. Horn, C.H., A. de Kock, J.C. du Preez and P.M. Lategan. 1988. A comparative study of the amylolytic ability of Lipomyces and Schwanniomyces yeast species. System. Appl. Microbiol. 10: 106-110. 24. Van Zyl, C., B.A. Prior and J.C. du Preez. 1988. Production of ethanol from sugar cane bagasse hemicellulose hydrolysate by Pichia stipitis. Appl. Biochem. Biotechnol. 17: 357-369. ISI 5-yr journal impact factor: 1.654 25. Ligthelm, M.E., B.A. Prior and J.C. du Preez. 1988. The oxygen requirements of yeasts for the fermentation of D-xylose and D-glucose to ethanol. Appl. Biochem. Biotechnol. 28: 63-68. ISI 5-yr journal impact factor: 1.654 26. Ligthelm, M.E., B.A. Prior and J.C. du Preez. 1988. The induction of D-xylose catabolizing enzymes in Pachysolen tannophilus and the relationship to anaerobic D-xylose fermentation. Biotechnol. Lett. 10: 207-212. 27. Ligthelm, M.E., B.A. Prior, J.C. du Preez and V. Brandt. 1988. An investigation of D-(1-13 C) metabolism in Pichia stipitis under aerobic and anaerobic conditions. Appl. Microbiol. Biotechnol. 28: 293-296. 28. Prior, B.A., N.H.M. Holder, S.G. Kilian and J.C. du Preez. 1988. Measurement of Candida utilis growth using the adenosine triphosphate bioluminescent assay. System. Appl. Microbiol. 10: 191-194. 29. Horn, C.H., J.C. du Preez and P.M. Lategan. 1988. Protein enrichment of banana plant wastes by yeast cultivation. Biol. Wastes 24: 127-136. 30. Ligthelm, M.E., B.A. Prior and J.C. du Preez. 1988. The effect of respiratory inhibitors on the fermentative ability of Pichia stipitis, Pachysolen tannophilus and Saccharomyces cerevisiae under various conditions of aerobiosis. Appl. Microbiol. Biotechnol. 29: 67-71. 31. Du Preez, J.C., B. van Driessel and B.A. Prior. 1988. The relation between redox potential and D-xylose fermentation by Candida shehatae and Pichia stipitis. Biotechnol. Lett. 10: 901-906. 32. Du Preez, J.C., B. van Driessel and B.A. Prior. 1989. Ethanol tolerance of Pichia stipitis and Candida shehatae strains in fed-batch cultures at controlled low dissolved oxygen levels. Appl. Microbiol. Biotechnol. 30: 53-58. 33. Ligthelm, M.E., B.A. Prior and J.C. du Preez. 1989. Effect of hydrogen acceptors on D-xylose fermentation by anaerobic culture of immobilized Pachysolen tannophilus cells. Biotechnol. Bioeng. 32: 839-844. 2

34. Du Preez, J.C., B. van Driessel and B.A. Prior. 1989. D-xylose fermentation by Candida shehatae and Pichia stipitis at low dissolved oxygen levels in fed-batch cultures. Biotechnol. Lett. 11: 131-136. 35. Du Preez, J.C., B. van Driessel and B.A. Prior. 1989. Effect of aerobiosis on fermentation and key enzyme levels during growth of Pichia stipitis, Candida shehatae and Candida tenuis on D- xylose. Arch. Microbiol. 152: 143-147. ISI 5-yr journal impact factor: 2.014 36. Prior, B.A., S.G. Kilian and J.C. du Preez. 1989. Fermentation of D-xylose by the yeasts Candida shehatae and Pichia stipitis. Prospects and problems. Process Biochem. 24(1): 21-32. 37. Holder, N.H.M., S.G. Kilian and J.C. du Preez. 1989. Yeast biomass from bagasse hydrolysates. Biol. Wastes 28: 239-246. 38. Du Preez, J.C. and A.B. Hugo. 1989. An electronic controller for maintaining low dissolved oxygen levels in a bench-top fermentor. Biotechnol. Techniques 3: 289-294. 39. Kilian, S.G., J.C. du Preez and M. Gericke. 1989. The effects of ethanol on growth rate and passive proton diffusion in yeasts. Appl. Microbiol. Biotechnol. 32: 90-94. 40. Van Zyl, C., B.A. Prior and J.C. du Preez. 1991. Acetic acid inhibition of D-xylose fermentation by Pichia stipitis. Enzyme and Microbial Technology 13: 82-86. 41. Kilian, S.G., A. van Deemter, J.L.F. Kock and J.C. du Preez. 1991. Occurrence and taxonomic aspects of proton movements coupled to sugar transport in the yeast genus Kluyveromyces. Antonie van Leeuwenhoek 59: 199-206. 42. Horn, C.H., J.C. du Preez and S.G. Kilian. 1991. Selective isolation of amylase derepressed mutants of Schwanniomyces occidentalis. Systematic and Applied Microbiology 14: 299-304. 43. Du Preez, J.C., P.S. Meyer and S.G. Kilian. 1991. Effect of mixtures of acetic acid and D-xylose on the growth rate of Candida blankii. Biotechnology Letters 13: 827-832. 44. Meyer, P.S., J.C. du Preez and S.G. Kilian. 1992. Isolation and evaluation of yeasts for biomass production from bagasse hemicellulose hydrolysate. Systematic and Applied Microbiology. 15: 161-165. 45. Meyer, P.S., J.C. du Preez and S.G. Kilian. 1992. Cultivation of Candida blankii in simulated bagasse hemicellulose hydrolysate. Journal of Industrial Microbiology. 9: 109-113. 46. Horn, C.H., J.C. du Preez and S.G. Kilian. 1992. Fermentation of grain sorghum starch by cocultivation of Schwanniomyces occidentalis and Saccharomyces cerevisiae. Bioresource Technology 42: 27-31. 47. Meyer, P.S., J.C. du Preez and S.G. Kilian. 1992. Chemostat cultivation of Candida blankii on sugar cane bagasse hemicellulose hydrolysate. Biotechnology and Bioengineering 40: 353-358. 48. Horn, C.H., J.C. du Preez and S.G. Kilian. 1992. Protein enrichment of grain sorghum by submerged culture of the amylolytic yeasts Schwanniomyces occidentalis and Lipomyces kononenkoae. World Journal of Microbiology and Biotechnology 8: 416-422. 49. Meyer, P.S., J.C. du Preez and S.G. Kilian. 1992. Effect of temperature and ph on Candida blankii in chemostat culture. World Journal of Microbiology and Biotechnology 8: 434-438. 50. Horn, C.H., J.C. du Preez and S.G. Kilian. 1992. Amylase production by a Schwanniomyces occidentalis mutant in chemostat culture. Applied Microbiology and Biotechnology 37: 147-151. 51. Meyer, P.S., du Preez, J.C. and S.G. Kilian. 1993. Selection and evaluation of astaxanthinoverproducing mutants of Phaffia rhodozyma. World Journal of Microbiology and Biotechnology 9: 514-520. ISI 5-yr journal impact factor: 1.213 3

52. Yang, S.-S., H.-D. Jang, C.-M. Liew and J.C. du Preez. 1993. Protein enrichment of sweet potato residue by solid-state cultivation with mono- and co-cultures of amylolytic fungi. World Journal of Microbiology and Biotechnology 9: 258-264. 53. Meyer, P.S. and J.C. du Preez. 1993. Effect of acetic acid on astaxanthin production by Phaffia rhodozyma. Biotechnology Letters 15: 919-924. 54. Meyer, P.S., J.C. du Preez and S.G. Kilian. 1993. Evaluation of Candida blankii hybrids for biomass production. Journal of Biotechnology. 29: 267-275. 55. Kilian, S.G., B.A. Prior and J.C. du Preez. 1993. The kinetics and regulation of D-xylose transport in Candida utilis. World Journal of Microbiology and Biotechnology 9: 357-360. 56. Du Preez, J.C., X.-M. Qian and S.G. Kilian. 1993. Stability and bioactivity of gibberellic acid in different solvents. Biotechnology Techniques 17: 391-396. 57. Qian, X.-M., J.C. du Preez and S.G. Kilian. 1994. Factors affecting gibberellic acid production by Fusarium moniliforme in solid state cultivation on starch. World Journal of Microbiology and Biotechnology 10: 93-99. 58. Meyer, P.S. and J.C. du Preez. 1994. Effect of culture conditions on astaxanthin production by a mutant of Phaffia rhodozyma in batch and chemostat culture. Applied Microbiology and Biotechnology 40: 780-785. 59. Meyer, P.S. and J.C. du Preez. 1994. Astaxanthin production by a Phaffia rhodozyma mutant on grape juice. World Journal of Microbiology and Biotechnology 10: 178-183. ISI 5-yr journal impact factor: 1.213 60. Meyer, P.S., B.D. Wingfield and J.C. du Preez. 1994. Genetic analysis of astaxanthinoverproducing mutants of Phaffia rhodozyma using RAPDs. Biotechnology Techniques 8: 1-6. 61. Meyer, P.S., J.C. du Preez & M.S. van Dyk. 1994. The effect of monoterpenes on astaxanthin production by a mutant of Phaffia rhodozyma. Biotechnology Letters 16: 125-128. 62. Meyer, P.S. and J.C. du Preez. 1994. Photo-regulated astaxanthin production by Phaffia rhodozyma mutants. Systematic and Applied Microbiology 17: 24-31. ISI 5-yr journal impact factor: 2.820 63. Roux, M.P., J.L.F. Kock, A. Botha, J.C. du Preez, G.V. Wells & P.J. Botes. 1994. Mucor - a source of cocoa butter and gamma-linolenic acid. World Journal of Microbiology and Biotechnology 10: 417-422. 64. Du Preez, J.C. 1994. Process parameters and environmental factors affecting D-xylose fermentation by yeasts. Enzyme and Microbial Technology 16: 944-956. 65. Vorster, E., S.G. Kilian & J.C. du Preez. 1994. Growth characteristics of Geotrichum ingens on propionic acid and acetic acid in batch and continuous culture. World Journal of Microbiology and Biotechnology 10: 505-509. 66. Roux, M.P., J.L.F. Kock, J.C. du Preez & A. Botha. 1995. The influence of dissolved oxygen tension on the production of cocoa butter equivalents and gamma-linolenic acid by Mucor circinelloides. Systematic and Applied Microbiology 18: 329-334. 67. Du Preez, J.C., M. Immelman, J.L.F. Kock & S.G. Kilian. 1995. Production of gamma-linolenic acid by Mucor circinelloides and Mucor rouxii with acetic acid as carbon substrate. Biotechnology Letters 17: 933-938. 68. Du Preez, J.C., M. Immelman & S.G. Kilian. 1996. The utilization of short chain monocarboxylic acids as carbon source for the production of gamma-linolenic acid by Mucor strains in fed-batch culture. World Journal of Microbiology and Biotechnology 12: 68-72. 4

69. Kilian, S.G., F.C.W. Sutherland, P.S. Meyer & J.C. du Preez. 1996. Transport-limited sucrose utilization and neokestose production by Phaffia rhodozyma. Biotechnology Letters 18:975-980. 70. Du Preez, J.C., M. Immelman, J.L.F. Kock & S.G. Kilian. 1997. The effect of acetic acid concentration on the growth and production of gamma-linolenic acid by Mucor circinelloides CBS 203.28 in fed-batch culture. World Journal of Microbiology and Biotechnology 13:81-87. 71. Immelman, M., J.C. du Preez & S.G. Kilian. 1997. Effect of C:N ratio on gamma-linolenic acid production by Mucor circinelloides grown on acetic acid. Systematic and Applied Microbiology 20:158-164. 72. Jeffery, J., Kock, J.L.F., du Preez, J.C., Bareetseng, A.S., Coetzee, D.J., Botes, P.J., Botha, A., Schewe, T. and Nigam, S. 1999. Effect of acetate and ph on sunflower oil assimilation by Mucor circinelloides f. circinelloides. Systematic and Applied Microbiology 22:156-160. 73. Singh, S., J.C. du Preez, B. Pillay & B.A. Prior. 2000. The production of hemicellulases by Thermomyces lanuginosus strain SSBP: influence of agitation and dissolved oxygen tension. Applied Microbiology and Biotechnology 54:698-704. 74. De Kock, S.H., J.C. du Preez & S.G. Kilian. 2000. Anomalies in the growth kinetics of Saccharomyces cerevisiae strains in aerobic chemostat cultures. Journal of Industrial Microbiology and Biotechnology 24:231-236. 75. De Kock, S.H., J.C. du Preez & S.G. Kilian. 2000. The effect of vitamins and amino acids on glucose uptake in aerobic chemostat cultures of three Saccharomyces cerevisiae strains. Systematic and Applied Microbiology 23:41-46. 76. Du Preez, J.C., S.H. de Kock, S.G. Kilian & D. Litthauer. 2000. The relationship between transport kinetics and glucose uptake by Saccharomyces cerevisiae in aerobic chemostat cultures. Antonie van Leeuwenhoek Journal of Microbiology 77: 379-388. 77. De Kock, S.H., J.C. du Preez & S.G. Kilian. 2001. The effect of growth factors on anoxic chemostat cultures of two Saccharomyces cerevisiae strains. Biotechnology Letters 23:957-962. 78. Du Preez, J.C., Maré, J.E., Albertyn, J. & Kilian, S.G. 2001. Transcriptional repression of ADH2- regulated β-xylanase production by ethanol in recombinant strains of Saccharomyces cerevisiae. FEMS Yeast Research 1:233-240. 79. Kilian, S, Kritzinger, S., Rycroft, C., Gibson, G. & Du Preez, J.C. 2002. The effects of the novel bifidogenic trisachharide, neokestose, on the human colonic microbiota. World Journal of Microbiology and Biotechnology 18: 637-644. 80. Kritzinger, S.M., Kilian, S.G., Potgieter, M.A. & du Preez, J.C. 2003. The effect of production parameters on the synthesis of the prebiotic trisaccharide, neokestose, by Xanthophyllomyces dendrorhous (Phaffia rhodozyma). Enzyme and Microbial Technology 32: 728 737. 81. Van Rensburg, E., du Preez, J.C. & Kilian, S.G. 2004. Influence of the growth phase and culture medium on the survival of Mannheimia haemolytica during storage at different temperatures. Journal of Applied Microbiology 96: 154-161. ISI 5-yr journal impact factor: 2.681 82. Knox, A.M., du Preez, J.C. & Kilian, S.G. 2004. Starch fermentation characteristics of Saccharomyces cerevisiae strains transformed with amylase genes from Lipomyces kononenkoae and Saccharomycopsis fibuligera. Enzyme and Microbial Technology 34: 453-460. 83. Chipeta, Z.A., du Preez, J.C., Szakacs, G. & Christopher, L. 2005. Xylanase production by fungal strains on spent sulphite liquor. Applied Microbiology and Biotechnology 69: 71 78. 5

84 Van Rensburg, E., du Preez, J.C. & Ellis, C.E. 2006. Quantification of Mannheimia haemolytica leukotoxin by indirect ELISA. Onderstepoort Journal of Veterinary Research 73: 241 250. ISI 5-yr journal impact factor: 0.525 85. Van Rensburg, E. & du Preez, J.C. 2007. Effect of ph, temperature and nutrient limitations on growth and leukotoxin production by Mannheimia haemolytica in batch and continuous culture. Journal of Applied Microbiology 102: 1273-1282. ISI 5-yr journal impact factor: 2.681 86. Du Preez, J.C., van Rensburg, E. & Kilian, S.G. 2008. Kinetics of growth and leukotoxin production by Mannheimia haemolytica in continuous culture. Journal of Industrial Microbiology & Biotechnology 35: 611-618. ISI 5-yr journal impact factor: 2.086 87. Chipeta, Z.A., du Preez, J.C. & Christopher, L. 2008. Effect of cultivation ph and agitation rate on growth and xylanase production by Aspergillus oryzae in spent sulphite liquor. Journal of Industrial Microbiology & Biotechnology 35: 587-594. ISI 5-yr journal impact factor: 2.086 88. de Smidt, O., du Preez, J., Albertyn, J. 2008. The alcohol dehydrogenases of Saccharomyces cerevisiae: a comprehensive review. FEMS Yeast Research 8: 967-978. ISI 5-yr journal impact factor: 2.403 89. de Smidt, O., du Preez, J.C., & Albertyn, J. 2011. Molecular and physiological aspects of alcohol dehydrogenases in the ethanol metabolism of Saccharomyces cerevisiae. FEMS Yeast Research 12: 33-47. ISI 5-yr journal impact factor: 2.403 6

B. Other publications 1. Lategan, P.M., J.C. du Preez and H.J. Potgieter. 1973. Characterization of bacteria causing mastitis by gas chromatography. Studia Microbiologica 2: 21. 2. Lategan, P.M., B.A. Prior, J.C. du Preez and S.G. Kilian. 1979. Substrates investigated for the production of single cell protein. S.A. Food Rev. 6(5): 24, 27, 29, 31. 3. Du Preez, J.C. and P.M. Lategan. 1982. The production of microbial protein from a Sasol effluent. Proc. 6th biennial SAAFoST congress, p. 76-77. Supplement to S.A. Food Rev. 9(2). 1982. 4. Du Preez, J.C. 1989. Fermentation of bagasse hemicellulose hydrolysate. In The biological utilization of bagasse, a lignocellulose waste (J.C. Paterson-Jones, ed.), South African national scientific programmes report no. 149, pp. 17-36. 5. Du Preez, J.C. 1989. Single cell protein production from bagasse hydrolysates. In The biological utilization of bagasse, a lignocellulose waste (J.C. Paterson-Jones, ed.), South African national scientific programmes report no. 149, pp. 71-74. 6. Du Preez, J.C. 1990. Research on single-cell protein in South Africa: an overview. Acta Varia 5: 147-169. 7. Prior, B.A., J.C. du Preez and P.W. Rein. 1992. Environmental parameters. In Solid Substrate Cultivation (H.W. Doelle, D.A. Mitchell and C. Rolz, eds.), pp. 65-85. Elsevier Science, Barking, UK. 8. Wahlbom, C.F., J.C. du Preez, W.H. van Zyl and B. Hahn-Hägerdal. 1998. Xylanase production by recombinant Saccharomyces cerevisiae in batch, fed-batch and continuous cultures. Proceedings, 2 nd European Symposium on Biochemical Engineering Science (ESBES-2), (S. F. De Azecedo, E.C. Ferreira, K.Ch.A.M. Luyben, P. Osseweijer, eds.), Porto, Portugal, 16-19 Sept. 1998, pp. 183-189. 9. Botha, A. and J.C. du Preez. 2000. Mucor. In Encyclopedia of Food Microbiology, vol. 2 (R.K. Robinson, C.A. Batt, P.D. Patel, eds.), pp. 1493-1500. Academic Press, San Diego, USA. 10. Albertyn J, Maré, J.E. and du Preez J.C. 2001. ADH2 transcription is repressed by both glucose and ethanol. 20 th International Conference on Yeast Genetics and Molecular Biology, Prague, Czech Republic, 26-31 August. (Published in Yeast, Vol. 18 No. S1, August 2001) 11. Chipeta, Z.A., du Preez, J.C. & Christov, L. 2002. Use of industrial waste water for xylanase production by two Aspergillus strains. Proceedings, 11th TAPPSA Biennial International Pulp and Paper Conference, Durban, 7-11 Oct. (Peer reviewed conference proceedings) 12. Du Preez, J.C. 2003. Editorial: yeast fermentations and other yeast bioprocesses. FEMS Yeast Research 3: 131. 7