Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria

Coffee quality can be modified with microorganism addition during post-harvest processing. While most studies focus on yeasts and lactic acid bacteria, other species identified in the digestive tract of palm civets might also contribute to the quality of luwak coffee. Bacteria akin to those identifi...

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Main Authors: Paulina Pakosz, Anna Bzducha-Wróbel, Beata Drużyńska, Ewa Majewska, Rafał Wołosiak
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/14/7/1143
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author Paulina Pakosz
Anna Bzducha-Wróbel
Beata Drużyńska
Ewa Majewska
Rafał Wołosiak
author_facet Paulina Pakosz
Anna Bzducha-Wróbel
Beata Drużyńska
Ewa Majewska
Rafał Wołosiak
author_sort Paulina Pakosz
collection DOAJ
description Coffee quality can be modified with microorganism addition during post-harvest processing. While most studies focus on yeasts and lactic acid bacteria, other species identified in the digestive tract of palm civets might also contribute to the quality of luwak coffee. Bacteria akin to those identified in palm civets’ gastrointestinal tract or feces were evaluated for their potential to modify coffee bean composition. Among those, <i>Bacillus subtilis</i> ATCC 6633, <i>Gluconobacter</i> sp. KKP 3751 and <i>Lactiplantibacillus plantarum</i> ATCC 4080 exhibited strong growth in green coffee extract. The use of these bacteria significantly changed the amounts of basic coffee components (taste and aroma precursors), and slightly altered bioactive compound levels in green and roasted beans. The influence of fermentation duration was evaluated using <i>L. plantarum</i>. A stationary growth phase and positive changes regarding phenolic content were achieved after 24 h of fermentation. Overall, the use of bacteria can influence bean composition, offering the potential to create unique coffee products.
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spelling doaj-art-a07e35783c3a4cb4a16fff2844cab0e42025-08-20T03:08:56ZengMDPI AGFoods2304-81582025-03-01147114310.3390/foods14071143Composition of Coffee Beans Influenced by Bioprocessing with Selected BacteriaPaulina Pakosz0Anna Bzducha-Wróbel1Beata Drużyńska2Ewa Majewska3Rafał Wołosiak4Division of Food Quality Assessment, Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159 Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Biotechnology and Food Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159C Nowoursynowska Street, 02-776 Warsaw, PolandDivision of Food Quality Assessment, Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159 Nowoursynowska Street, 02-776 Warsaw, PolandDivision of Food Quality Assessment, Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159 Nowoursynowska Street, 02-776 Warsaw, PolandDivision of Food Quality Assessment, Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159 Nowoursynowska Street, 02-776 Warsaw, PolandCoffee quality can be modified with microorganism addition during post-harvest processing. While most studies focus on yeasts and lactic acid bacteria, other species identified in the digestive tract of palm civets might also contribute to the quality of luwak coffee. Bacteria akin to those identified in palm civets’ gastrointestinal tract or feces were evaluated for their potential to modify coffee bean composition. Among those, <i>Bacillus subtilis</i> ATCC 6633, <i>Gluconobacter</i> sp. KKP 3751 and <i>Lactiplantibacillus plantarum</i> ATCC 4080 exhibited strong growth in green coffee extract. The use of these bacteria significantly changed the amounts of basic coffee components (taste and aroma precursors), and slightly altered bioactive compound levels in green and roasted beans. The influence of fermentation duration was evaluated using <i>L. plantarum</i>. A stationary growth phase and positive changes regarding phenolic content were achieved after 24 h of fermentation. Overall, the use of bacteria can influence bean composition, offering the potential to create unique coffee products.https://www.mdpi.com/2304-8158/14/7/1143coffee beansgreen coffee modificationcoffee compositionroastingbioactive compoundsluwak coffee
spellingShingle Paulina Pakosz
Anna Bzducha-Wróbel
Beata Drużyńska
Ewa Majewska
Rafał Wołosiak
Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
Foods
coffee beans
green coffee modification
coffee composition
roasting
bioactive compounds
luwak coffee
title Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
title_full Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
title_fullStr Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
title_full_unstemmed Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
title_short Composition of Coffee Beans Influenced by Bioprocessing with Selected Bacteria
title_sort composition of coffee beans influenced by bioprocessing with selected bacteria
topic coffee beans
green coffee modification
coffee composition
roasting
bioactive compounds
luwak coffee
url https://www.mdpi.com/2304-8158/14/7/1143
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AT annabzduchawrobel compositionofcoffeebeansinfluencedbybioprocessingwithselectedbacteria
AT beatadruzynska compositionofcoffeebeansinfluencedbybioprocessingwithselectedbacteria
AT ewamajewska compositionofcoffeebeansinfluencedbybioprocessingwithselectedbacteria
AT rafałwołosiak compositionofcoffeebeansinfluencedbybioprocessingwithselectedbacteria