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Asaia sp. as a Bacterium Decaying the Packaged Still Fruit Beverages

Author

Listed:
  • I. Horsáková

    (Department of Food Preservation and Meat Technology and)

  • M. Voldřich

    (Department of Food Preservation and Meat Technology and)

  • M. Čeřovský

    (Department of Food Preservation and Meat Technology and)

  • P. Sedláčková

    (Department of Food Preservation and Meat Technology and)

  • P. Šicnerová

    (Department of Food Preservation and Meat Technology and)

  • P. Ulbrich

    (Department of Biochemistry and Microbiology, Institute of Chemical Technology in Prague, 166 28 Prague, Czech Republic *E-mail: michal.voldrich@vscht.cz)

Abstract

Several cases of consumer complaints to the still soft beverages - fruit drinks and ice teas were analysed. The visible impurities and slight sensory changes were observed, sediment was formed by microbial cells. The bacteria were isolated and identified as Asaia sp. The identification was confirmed by PCR technique. The sensitivity of bacteria to preservative agents especially to the sodium benzoate, potassium sorbate and dimethyldicarbonate was evaluated in model samples and in the real conditions of the beverage. The minimal inhibitory concentrations were estimated as well as the factors affecting the sensitivity of bacteria. Besides the stabilisation of drinks the general possibilities of decay prevention were considered, the efficiency of cleaning and sanitation procedures were evaluated, including the comparison of various sanitation agents.

Suggested Citation

  • I. Horsáková & M. Voldřich & M. Čeřovský & P. Sedláčková & P. Šicnerová & P. Ulbrich, 2009. "Asaia sp. as a Bacterium Decaying the Packaged Still Fruit Beverages," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 27(SpecialIs), pages 362-365.
    • Handle: RePEc:caa:jnlcjf:v:27:y:2009:i:specialissue1:id:970-cjfs
    DOI: 10.17221/970-CJFS
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    Cited by:

    1. Iveta ŠÍSTKOVÁ & Vojtěch KRUŽÍK & Aleš RAJCHL & Helena ČÍŽKOVÁ, 2018. "Identification of biphenyls - contaminants responsible for off-flavour in soft drinks," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 36(1), pages 16-21.

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