Repository logo
 
Publication

The effect of ethanol on the plasma membrane permeability of spoilage yeasts

dc.contributor.authorQuintas, Célia
dc.contributor.authorLima-Costa, Maria Emília
dc.contributor.authorLoureiro-Dias, M. C.
dc.date.accessioned2015-12-03T14:46:01Z
dc.date.available2015-12-03T14:46:01Z
dc.date.issued2000
dc.description.abstractThe effect of ethanol on the passive proton influx and on leakage of compounds absorbing at 260 nm, as representatives of intracellular content, was studied on food spoilage yeasts such as Saccharomyces cerevisiae, Zygosaccharomyces bailii, Pichia sp. and Debaryomyces hansenii. For volume fraction below 10 %, the effect of ethanol on the proton influx was in general weak, but above a certain treshold of ethanol high values were observed. In Z. bailii ethanol had no effect up to 20 % (volume fraction). Previous growth of the cells in the presence of benzoic acid or ethanol did not affect the influx of protons in the presence of ethanol. Leakage of compounds absorbing at 260 nm was not observed at 25 degrees C and occurred at 30 degrees C only after a rather long incubation in high concentrations of ethanol, which induced cell death. This suggests that in the yeasts this process does not control the leakage of compounds in the presence of ethanol.
dc.identifier.issn1330-9862
dc.identifier.otherAUT: CQU00490;
dc.identifier.urihttp://hdl.handle.net/10400.1/7300
dc.language.isoeng
dc.peerreviewedyes
dc.relation.isbasedonP-001-1H3
dc.titleThe effect of ethanol on the plasma membrane permeability of spoilage yeasts
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage51
oaire.citation.startPage47
oaire.citation.titleFood Technology and Biotechnology
oaire.citation.volume38
person.familyNameQuintas
person.familyNameLima Costa
person.givenNameCélia
person.givenNameMaria Emília
person.identifier.ciencia-idEA14-D76B-FF6E
person.identifier.orcid0000-0001-9680-5089
person.identifier.orcid0000-0002-4433-5756
person.identifier.scopus-author-id7003633118
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication7c06dbb4-eb11-4f22-b0f5-3cf276d919f4
relation.isAuthorOfPublication6eb9b8a6-dd51-4ace-809b-7d7de9cdfe36
relation.isAuthorOfPublication.latestForDiscovery6eb9b8a6-dd51-4ace-809b-7d7de9cdfe36

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
The effect of ethanol on plasma membrane.pdf
Size:
132.27 KB
Format:
Adobe Portable Document Format