Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria

Temporal shotgun metagenomics of multiple samples of an Arabica wet coffee fermentation process, which was examined microbiologically and metabolomically before, was performed to complement these microbiological and biochemical data with an in-depth in silico analysis of the structure and functions...

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Main Authors: Vasileios Pothakos, Luc De Vuyst, Sophia Jiyuan Zhang, Florac De Bruyn, Marko Verce, Julio Torres, Michael Callanan, Cyril Moccand, Stefan Weckx
Format: Article
Language:English
Published: Elsevier 2020-11-01
Series:Current Research in Biotechnology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590262820300034
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author Vasileios Pothakos
Luc De Vuyst
Sophia Jiyuan Zhang
Florac De Bruyn
Marko Verce
Julio Torres
Michael Callanan
Cyril Moccand
Stefan Weckx
author_facet Vasileios Pothakos
Luc De Vuyst
Sophia Jiyuan Zhang
Florac De Bruyn
Marko Verce
Julio Torres
Michael Callanan
Cyril Moccand
Stefan Weckx
author_sort Vasileios Pothakos
collection DOAJ
description Temporal shotgun metagenomics of multiple samples of an Arabica wet coffee fermentation process, which was examined microbiologically and metabolomically before, was performed to complement these microbiological and biochemical data with an in-depth in silico analysis of the structure and functions of the coffee microbiome. The taxonomic analysis of a massive sequence dataset of ca. 16 Gbp identified >150 microbial species and distinguished three successive, microbial phases: (i) enterobacteria, acetic acid bacteria, and some yeasts prevailing at the start; (ii) lactic acid bacteria (LAB) in the second phase; and (iii) acid-tolerant LAB at the end of the fermentation process. The functional analysis of prokaryotic genes, based on ca. 138,000 coding sequences, facilitated the gene repertoire overview of this ecosystem, showcasing differences in each fermentation stage. Initial prototrophic characters, plant cell wall-degrading activities, and pectinolytic activities were followed by a more auxotrophic and saccharolytic microbial profile, due to an increasing relative abundance of LAB. The almost full genome of 22 bacterial species was reconstructed and additional coffee-specific features were identified. This temporal metagenomic analysis of a case of reproducible wet coffee fermentation processes carried out in a coffee plantation near Nanegal, Ecuador, constitutes a breakthrough for the study of wet coffee processing and the contribution of the growth and activities of different microorganisms, in particular LAB, to this process.
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spelling doaj.art-f74ae4ed736b492c9b96fe6ae7395f3d2022-12-21T22:02:09ZengElsevierCurrent Research in Biotechnology2590-26282020-11-012115Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteriaVasileios Pothakos0Luc De Vuyst1Sophia Jiyuan Zhang2Florac De Bruyn3Marko Verce4Julio Torres5Michael Callanan6Cyril Moccand7Stefan Weckx8Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, BelgiumResearch Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium; Corresponding author.Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, BelgiumResearch Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, BelgiumResearch Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, BelgiumNestlé R&D Centre Tours, 101 Avenue Gustave Eiffel, B.P. 49716, 37097 Tours Cedex 2, France; Nestlé Ecuador, El Inca, EC 170124, Quito, EcuadorNestlé Research, Route du Jorat 57, Vers-chez-les-Blancs, CH-1000 Lausanne 26, SwitzerlandNestlé Research, Route du Jorat 57, Vers-chez-les-Blancs, CH-1000 Lausanne 26, SwitzerlandResearch Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, BelgiumTemporal shotgun metagenomics of multiple samples of an Arabica wet coffee fermentation process, which was examined microbiologically and metabolomically before, was performed to complement these microbiological and biochemical data with an in-depth in silico analysis of the structure and functions of the coffee microbiome. The taxonomic analysis of a massive sequence dataset of ca. 16 Gbp identified >150 microbial species and distinguished three successive, microbial phases: (i) enterobacteria, acetic acid bacteria, and some yeasts prevailing at the start; (ii) lactic acid bacteria (LAB) in the second phase; and (iii) acid-tolerant LAB at the end of the fermentation process. The functional analysis of prokaryotic genes, based on ca. 138,000 coding sequences, facilitated the gene repertoire overview of this ecosystem, showcasing differences in each fermentation stage. Initial prototrophic characters, plant cell wall-degrading activities, and pectinolytic activities were followed by a more auxotrophic and saccharolytic microbial profile, due to an increasing relative abundance of LAB. The almost full genome of 22 bacterial species was reconstructed and additional coffee-specific features were identified. This temporal metagenomic analysis of a case of reproducible wet coffee fermentation processes carried out in a coffee plantation near Nanegal, Ecuador, constitutes a breakthrough for the study of wet coffee processing and the contribution of the growth and activities of different microorganisms, in particular LAB, to this process.http://www.sciencedirect.com/science/article/pii/S2590262820300034Coffee bean fermentationWet processingShotgun metagenomicsTaxonomic analysisFunctional analysisLeuconostoc pseudomesenteroides
spellingShingle Vasileios Pothakos
Luc De Vuyst
Sophia Jiyuan Zhang
Florac De Bruyn
Marko Verce
Julio Torres
Michael Callanan
Cyril Moccand
Stefan Weckx
Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
Current Research in Biotechnology
Coffee bean fermentation
Wet processing
Shotgun metagenomics
Taxonomic analysis
Functional analysis
Leuconostoc pseudomesenteroides
title Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
title_full Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
title_fullStr Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
title_full_unstemmed Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
title_short Temporal shotgun metagenomics of an Ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
title_sort temporal shotgun metagenomics of an ecuadorian coffee fermentation process highlights the predominance of lactic acid bacteria
topic Coffee bean fermentation
Wet processing
Shotgun metagenomics
Taxonomic analysis
Functional analysis
Leuconostoc pseudomesenteroides
url http://www.sciencedirect.com/science/article/pii/S2590262820300034
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