SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST

Cocoa beans (Theobroma cacao L.) are the raw material for chocolate production. The variability of cocoa beans quality, due to the activity of microbiota involved in cocoa fermentation causes huge economic losses in cocoa-producing countries. To resolve this issue, 743 yeast strains isolated in Ivor...

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Autores principales: Odilon KOFFI, Lamine SAMAGACI, Bernadette GOUALIE, Sébastien NIAMKE
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Lenguaje:EN
Publicado: Stefan cel Mare University of Suceava 2018
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Acceso en línea:https://doaj.org/article/05fb3f7dd0cf4d49a314d8b4d22cdd56
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spelling oai:doaj.org-article:05fb3f7dd0cf4d49a314d8b4d22cdd562021-12-02T17:50:23ZSCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST2068-66092559-6381https://doaj.org/article/05fb3f7dd0cf4d49a314d8b4d22cdd562018-06-01T00:00:00Zhttp://www.fia.usv.ro/fiajournal/index.php/FENS/article/view/572/541https://doaj.org/toc/2068-6609https://doaj.org/toc/2559-6381Cocoa beans (Theobroma cacao L.) are the raw material for chocolate production. The variability of cocoa beans quality, due to the activity of microbiota involved in cocoa fermentation causes huge economic losses in cocoa-producing countries. To resolve this issue, 743 yeast strains isolated in Ivorian cocoa fermentation were investigated in order to identify potential starters by their ability to resist to physico-chemical stress conditions and to produce enzyme necessary to cocoa fermentation. Thus, out of the 743 investigated yeast strains, 113 showed high fermentative capacity, 19 being able to produce high ethanol contents up to 4,18 % w/v. Out of 19 yeast strains high ethanol producers, two strains Saccharomyces cerevisiae YB14 and Pichia kudriavzevii YP13 were able on one hand to resist to most parameters such as temperature, pH, ethanol, organics acid, and on the other hand they were able to produce specific enzymes like pectinase, β-glucosidase, protease necessary to have a good cocoa fermentation process, and finally to produce acetoin which is desirable for flavor development in the fermentation process. These two strains could therefore be used as starter cultures which may contribute to the control of cocoa fermentation in Ivory Coast.Odilon KOFFILamine SAMAGACIBernadette GOUALIESébastien NIAMKEStefan cel Mare University of SuceavaarticleYeastsethanolcocoa fermentationstartersFood processing and manufactureTP368-456ENFood and Environment Safety, Vol 17, Iss 2, Pp 113-130 (2018)
institution DOAJ
collection DOAJ
language EN
topic Yeasts
ethanol
cocoa fermentation
starters
Food processing and manufacture
TP368-456
spellingShingle Yeasts
ethanol
cocoa fermentation
starters
Food processing and manufacture
TP368-456
Odilon KOFFI
Lamine SAMAGACI
Bernadette GOUALIE
Sébastien NIAMKE
SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
description Cocoa beans (Theobroma cacao L.) are the raw material for chocolate production. The variability of cocoa beans quality, due to the activity of microbiota involved in cocoa fermentation causes huge economic losses in cocoa-producing countries. To resolve this issue, 743 yeast strains isolated in Ivorian cocoa fermentation were investigated in order to identify potential starters by their ability to resist to physico-chemical stress conditions and to produce enzyme necessary to cocoa fermentation. Thus, out of the 743 investigated yeast strains, 113 showed high fermentative capacity, 19 being able to produce high ethanol contents up to 4,18 % w/v. Out of 19 yeast strains high ethanol producers, two strains Saccharomyces cerevisiae YB14 and Pichia kudriavzevii YP13 were able on one hand to resist to most parameters such as temperature, pH, ethanol, organics acid, and on the other hand they were able to produce specific enzymes like pectinase, β-glucosidase, protease necessary to have a good cocoa fermentation process, and finally to produce acetoin which is desirable for flavor development in the fermentation process. These two strains could therefore be used as starter cultures which may contribute to the control of cocoa fermentation in Ivory Coast.
format article
author Odilon KOFFI
Lamine SAMAGACI
Bernadette GOUALIE
Sébastien NIAMKE
author_facet Odilon KOFFI
Lamine SAMAGACI
Bernadette GOUALIE
Sébastien NIAMKE
author_sort Odilon KOFFI
title SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
title_short SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
title_full SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
title_fullStr SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
title_full_unstemmed SCREENING OF POTENTIAL YEAST STARTERS WITH HIGH ETHANOL PRODUCTION FOR A SMALL-SCALE COCOA FERMENTATION IN IVORY COAST
title_sort screening of potential yeast starters with high ethanol production for a small-scale cocoa fermentation in ivory coast
publisher Stefan cel Mare University of Suceava
publishDate 2018
url https://doaj.org/article/05fb3f7dd0cf4d49a314d8b4d22cdd56
work_keys_str_mv AT odilonkoffi screeningofpotentialyeaststarterswithhighethanolproductionforasmallscalecocoafermentationinivorycoast
AT laminesamagaci screeningofpotentialyeaststarterswithhighethanolproductionforasmallscalecocoafermentationinivorycoast
AT bernadettegoualie screeningofpotentialyeaststarterswithhighethanolproductionforasmallscalecocoafermentationinivorycoast
AT sebastienniamke screeningofpotentialyeaststarterswithhighethanolproductionforasmallscalecocoafermentationinivorycoast
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