Effect of pH, temperature and nutrient limitations on growth and leukotoxin production by Mannheimia haemolytica in batch and continuous culture von van Rensburg, E, du Preez, J.C

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Process parameters and environmental factors affecting d-xylose fermentation by yeasts von du Preez, J.C.

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Influence of the growth phase and culture medium on the survival of Mannheimia haemolytica during storage at different temperatures von Van Rensburg, E, Du Preez, J.C, Kilian, S.G

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effect of growth factors on anoxic chemostat cultures of two Saccharomyces cerevisiae strains von de Kock, S.H, Du Preez, J.C, Kilian, S.G

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Ethanol tolerance of Pichia stipitis and Candida shehatae strains in fed-batch cultures at controlled low dissolved oxygen levels von Preez, J.C. du, Driessel, B. van, Prior, B.A

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The effect of production parameters on the synthesis of the prebiotic trisaccharide, neokestose, by Xanthophyllomyces dendrorhous ( Phaffia rhodozyma) von Kritzinger, S.M, Kilian, S.G, Potgieter, M.A, du Preez, J.C

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The Influence of Dissolved Oxygen Tension on the Production of Cocoa Butter Equivalents and Gamma-linolenic Acid by Mucor circinelloides von Roux, M.P., Kock, J.L.F., Du Preez, J.C., Botha, A.

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Fermentation of grain sorghum starch by co-cultivation of schwanniomyces occidentalis and saccharomyces cerevisiae von Horn, C.H., du Preez, J.C., Kilian, S.G.

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The effect of medium composition and ethanol toxicity on the growth of Saccharomyces cerevisiae strain W303-1A(a) von Du Preez, J.C., Albertyn, J., De Smidt, O.

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Growth characteristics of Geotrichum ingens on propionic acid and acetic acid in batch and continuous culture von Vorster, E, Killian, S.G, Du Preez, J.C

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Evaluation of Candida blankii hybrids for biomass production von Meyer, P.S., du Preez, J.C., Wingfield, B.D., Kilian, S.G.

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The production of hemicellulases by Thermomyces lanuginosus strain SSBP: influence of agitation and dissolved oxygen tension von SINGH, S, DU PREEZ, J. C, PILLAY, B, PRIOR, B. A

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oxygen requirements of yeasts for the fermentation of D-xylose and D-glucose to ethanol von Ligthelm, M.E, Prior, B.A, Du Preez, J.C

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Quantification of Mannheimia haemolytica leukotoxin by indirect ELISA von Van Rensburg, E., Ellis, C.E., Du Preez, J.C.

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Effect of culture conditions on astaxanthin production by a mutant of Phaffia rhodozyma in batch and chemostat culture von Meyer, P.S, Du Preez, J.C

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Gas chromatographic analysis of C2—C5 fatty acids in aqueous media using Carbopack B—Carbowax 20M—phosphoric acid von Du Preez, J.C., Lategan, P.M.

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Selection and evaluation of astaxanthin-overproducing mutants of Phaffia rhodozyma von Meyer, P.S, Preez, J.C. du, Kilian, S.G

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Effect of C:N Ratio on Gamma-linolenic Acid Production by Mucor circinelloides Grown on Acetic Acid von Immelman, Monique, du Preez, James C., Kilian, Stephanus G.

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Production of ethanol from sugar cane bagasse hemicellulose hydrolyzate by Pichia stipitis von Zyl, C.V, Prior, B.A, Du Preez, J.C

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Mucor--a source of cocoa butter and gamma-linolenic acid von Roux, M.P, Kock, J.L.F, Botha, A, Du Preez, J.C, Wells, G.V, Botes, P.J

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