SwePub
Sök i LIBRIS databas

  Extended search

AMNE:(LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Jordbruksvetenskap)
 

Search: AMNE:(LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Jordbruksvetenskap) > (1990-1999) > Ergosterol Levels a...

  • Schnürer, Johan,1957-Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden (author)

Ergosterol Levels and Mould Colony Forming Units in Swedish Grains of Food and Feed Grade

  • Article/chapterEnglish1992

Publisher, publication year, extent ...

  • Oslo, Norway :Scandinavian University Press,1992
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:oru-52225
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-52225URI
  • https://doi.org/10.1080/09064719209410219DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Although ergosterol is considered to be a suitable indicator of mould growth in cereal grains, there are few reference values available for Scandinavian conditions. We have determined the ergosterol levels in Swedish grain of different origins: cleaned food-grade wheat from a commercial mill, feed-grade cereals (oats and barley) with different odours and cereals (winter wheat, ''American wheat'', triticale and rye) from various field trials conducted in south-central Sweden in 1990. Specific objectives were to elucidate the relationships between ergosterol levels and numbers of mould colony forming units (CFU) and between ergosterol and grain odour.Ergosterol levels in the food-grade wheat ranged between 2.4 and 2.8 mug/g DW, and between 3.0 and 5.6 mug/g DW in the field trial cereals, while values in most of the feed grain samples ranged from 8-15 mug/g DW The levels agree with other published data for European grains.A positive correlation was found between numbers of colony-forming units and ergosterol concentration. The degree of correlation was higher when numbers of CFU were determined on dichloran-glycerol 18% agar with a low water activity (aw = 0.95) than on malt extract agar (aw = 0.99). There was no agreement between ergosterol levels and grain odour, since even samples described as having a fresh smell had high ergosterol levels. However, the highest level (33 mug/g DW) was found in a sample with a pronounced musty odour, and the lowest (1.1 gg/g DW) in a sample that smelled as if it had been heat damaged.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Jonsson, AndersSwedish Farmers Crop Supply and Marketing Association, Research and Development, Stockholm, Sweden (author)
  • Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, SwedenSwedish Farmers Crop Supply and Marketing Association, Research and Development, Stockholm, Sweden (creator_code:org_t)

Related titles

  • In:Acta Agriculturae Scandinavica - Section BOslo, Norway : Scandinavian University Press42:4, s. 240-2450906-47101651-1913

Internet link

Find in a library

To the university's database

Find more in SwePub

By the author/editor
Schnürer, Johan, ...
Jonsson, Anders
About the subject
AGRICULTURAL SCIENCES
AGRICULTURAL SCI ...
and Agriculture Fore ...
and Agricultural Sci ...
AGRICULTURAL SCIENCES
AGRICULTURAL SCI ...
and Agriculture Fore ...
and Soil Science
Articles in the publication
Acta Agricultura ...
By the university
Örebro University

Search outside SwePub

Wikipedia about the author:
Johan_Schnürer
Schnürer, Johan,1957-
en

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view