New improved method for evaluation of growth by food related fungi on biologically derived materials

Karina P. Bergenholtz, Per Væggemose Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Biologically derived materials, obtained as commercial and raw materials (Polylactate (PLA), Polyhydroxybutyrate (PHB), potato, wheat and corn starch) were tested for their ability to support fungal growth using a modified ASTM G21-96 (American Society for Testing and Materials) standard as well as a new method where 10 mul of a spore suspension is placed in a spot on the test sample. The new method gave additional information about fungal growth on biologically derived materials, revealing a clear difference between survival and growth. PHB and PIA turned out to be most suitable for food packaging application as no significant growth was seen within 28 d of incubation at 30 degreesC.
    Original languageEnglish
    JournalJournal of Food Science
    Volume67
    Issue number7
    Pages (from-to)2745-2749
    ISSN0022-1147
    Publication statusPublished - 2002

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