Cited by 111Mycotoxins in Agriculture and FoodFermentation and Sensory AnalysisCoffee research and impacts

Influence of volatile compounds produced by yeasts predominant during processing of Coffea arabica in East Africa on growth and ochratoxin A (OTA) production by Aspergillus ochraceus

Masoud, Wafa, Poll, Leif, Jakobsen, Mogens·2005·Yeast

Abstract

The effects of volatile compounds produced during coffee processing by Pichia anomala, P. kluyveri and Hanseniaspora uvarum on growth of Aspergillus ochraceus and production of ochratoxin A (OTA) were studied. On malt extract agar (MEA) and on coffee agar (CA), exposure of A. ochraceus to the gaseous phase of malt yeast glucose peptone (MYGP) plates inoculated with P. anomala, P. kluyveri and H. uvarum inhibited fungal growth, with the two Pichia spp. showing the strongest effect. The main esters and alcohols produced by the three yeasts were ethyl acetate, isobutyl acetate, 2‐phenyl ethyl acetate, ethyl propionate and isoamyl alcohol. The individual esters and alcohols were found to affect fungal growth. The most effective compound in inhibiting fungal growth was 2‐phenyl ethyl acetate; which at 48 µg/l headspace completely inhibited growth of A. ochraceus. Exposure of A. ochraceus to the gaseous phase of MYGP plates inoculated with P. anomala, P. kluyveri and H. uvarum prevented production of OTA. On CA medium, only the headspace of P. anomala and P. kluyveri prevented OTA production. Furthermore, when A. ochraceus was exposed to the headspace of the individual volatile compounds, 2‐phenyl ethyl acetate was the most effective in preventing OTA production. Prevention of OTA seems to be due to reduction of fungal biomass. Copyright © 2005 John Wiley & Sons, Ltd.

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Crossref · 10.1002/yea.1304

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  • VOCs released by P. anomala, Pichia kluyveri, and Hanseniaspora uvarum inhibited Aspergillus ochraceus growth and ochratoxin A production during processing of coffee.

    “VOCs released by P. anomala, Pichia kluyveri, and Hanseniaspora uvarum inhibited Aspergillus ochraceus growth and ochratoxin A production during processing of coffee (Masoud et al. 2005)”

    From Biocontrol yeasts: mechanisms and applications (2019) · cites this paper as Masoud et al. 2005

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Authors
Masoud, W., Poll, L., & Jakobsen, M.
Corresponding author
Masoud, Wafa
Venue
Yeast
Publisher
Wiley
Published
2005-10-21
Volume
22
Issue
14
Pages
1133-1142
ISSN
  • 0749-503X (ISSN-L)
  • 1097-0061
OpenAlex
W1988383666
Cited by
110
References
38
Citations by year
2026: 1 · 2025: 11 · 2024: 6 · 2023: 14 · 2022: 5 · 2021: 9 · 2020: 7 · 2019: 7 · 2018: 5 · 2017: 7 · 2016: 7 · 2015: 9 · 2014: 4 · 2013: 3 · 2012: 6
FWCI
1.60
Type
journal article
Language
en
Open access
closed
Locations
  • Yeast (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycotoxins in Agriculture and Food
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Fermentation and Sensory Analysis
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
Keywords
ochratoxin A, Aspergillus ochraceus, coffee processing, Coffea arabica, volatile compounds, Wickerhamomyces anomalus, Pichia kluyveri, Hanseniaspora uvarum, esters, alcohol chemistry, fungal growth inhibition, mycotoxin prevention
MeSH terms
Africa, Eastern, Agar, Alcohols, Aspergillus ochraceus, Culture Media, Saccharomycetales, Esters, Ochratoxins, Pichia, Volatilization, Coffea

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