Mold-inhibitory activity of different yeast species during airtight storage of wheat grain

Abstract

The yeast Pichia anomala J121 inhibits spoilage by Penicillium roqueforti in laboratory and pilot studies with high-moisture wheat in malfunctioning airtight storage. We tested the biocontrol ability of an additional 57 yeast species in a grain mini silo system. Most yeast species grew to CFU levels comparable to that of P. anomala J121 after 14 days of incubation (> 10(6) CF U g(-1)). Of the 5 8 species, 38 (63 strains) had no mold-inhibitory effects (Pen. roqueforti levels > 10(5) CFU g(-1)). Among these were 11 species (18 strains) that did not grow on the wheat grain. Several of the non-inhibiting yeast species have previously been reported as biocontrol agents in other postharvest environments. Weak inhibitory activity, reducing Pen. roqueforti levels to between 10(4) and 10(5) CFU g(-1), was observed with 11 species (12 strains). Candida silvicola and Pichia guillermondii reduced Pen. roqueforti to

Published in

FEMS Yeast Research
2005, volume: 5, number: 4-5, pages: 373-378
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Schnürer, Johan

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Druvefors, Ulrika Ädel

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science
Animal and Dairy Science
Veterinary Science

Publication identifier

• DOI: https://doi.org/10.1016/j.femsyr.2004.10.006

Permanent link to this page (URI)

https://res.slu.se/id/publ/5530