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Janisiewicz, W.J., Tworkoski, T.J. & Kurtzman, C.P. (2001): Biocontrol potential of Metschnikowia pulcherrima strains against blue mould of apple. Phytopathology, 91 , 1098-1108. Biocontrol potential of Metschnikowia pulcherrima

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Acta Alimentaria
Authors: A. Taczman-Brückner, Cs. Mohácsi-Farkas, Cs. Balla, and G. Kiskó

Druvefors, U. A., Passoth, V. & Schnürer, J. (2003): The role of nutrient competition and ethyl acetate formation in the mode of action of the biocontrol agent Pichia anomala J121. 23rd International Specialised Symposium on Yeasts. 26-29 August 2003

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bacteria mainly by using the native microbiota of the product of interest ( Oliveira et al., 2015 ). However, biocontrol can also be applied as an alternative cleaning and/or disinfection practice ( Vandini et al., 2014 ; Gray et al., 2018 ) as well. As

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The surplus of waste glycerol, by-product of the biodiesel production process, is available at the global market. Some species of the genera Streptomyces have the ability to assimilate glycerol and convert it into valuable metabolic products. In the present study, the ability of Streptomyces hygroscopicus to assimilate waste glycerol and convert it into metabolic compounds with antifungal activity against four phytopathogenic fungi obtained from apple fruit samples expressing rot symptoms, was investigated. Production of antifungal metabolites by S. hygroscopicus was carried out in 3 l stirred tank bioreactor through 7 days. Fermentation was carried out at 27 °C with aeration rate of 1.5 vvm and agitation rate of 100 r.p.m. The aim of this work was to analyse bioprocess parameters and to determine at which stage of bioprocess the production of antifungal metabolites occurs. Activity of the cultivation liquid on two isolates of Alternaria alternata and two isolates of Fusarium avenaceum were determined every 12 h using in vitro well diffusion method. It was found that the maximum production of antifungal metabolites occurred at 108 hour of cultivation. Formed inhibition zones have shown that the produced antifungal metabolites have high efficacy on tested phytopathogenic fungi (inhibition zone diameter higher than 35 mm for all test organisms).

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Acta Alimentaria
Authors: M.Y. Jiang, Z.R. Wang, K.W. Chen, J.Q. Kan, K.T. Wang, Zs. Zalán, F. Hegyi, K. Takács, and M.Y. Du

. Droby , S. , Wisniewski , M. , Macarisin , D. & Wilson , C. ( 2009 ): Twenty years of postharvest biocontrol research: Is it time for a new paradigm . Postharvest Biol. Tec. , 52 , 137 – 145

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): Biotechnological approaches in biocontrol of plant pathogens . Kluwer Academic/Plenum Publishers. New York, p. 17. Upadhyay R.K. Biotechnological approaches in

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Viljoen, B.C. (2006): Yeast ecological interactions. Yeast-yeast, yeast-bacteria, yeast-fungi interactions and yeasts as biocontrol agents. -in: Querol, A. & Fleet, G. (Eds): The yeast handbook . Vol. 2: Yeasts in food and beverages. Springer Verlag

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degradation and/or biocontrol . Electron. J. Biotechn. , 4 ( 3 ), 1 – 7 . Zhao , X. , Zhou , Y. , Zheng , G. & Liu , D. ( 2010 ): Microwave

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. Easterbrook , M.A. ( 1992 ). The possibilities for control of two-spotted spider mite Tetranychus urticae on fieldgrown strawberries in the UK by predatory mites . Biocontrol Sci. Techn. , 2 , 235 – 245

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candidates for postharvest biocontrol of fungal rots in citrus and apples fruits. J. Pl. Pathol. , 91 , 207–213. Cirvilleri G. Some strains of Burkholderia gladioli are potential

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