Wet fermentation of Coffea canephora by lactic acid bacteria and yeasts using the self-induced anaerobic fermentation (SIAF) method enhances the coffee quality.

Autor: Cassimiro DMJ; Department of Food Science, Federal University of Lavras, CEP 37200-900, Lavras, MG, Brazil., Batista NN; Department of Biology, Federal University of Lavras, CEP 37200-900, Lavras, MG, Brazil., Fonseca HC; Institute of Agricultural Sciences, Federal University of Minas Gerais, CEP 39404-547, Montes Claros, MG, Brazil., Oliveira Naves JA; Sensorial Laboratory - Nucoffee, Varginha, MG, Brazil., Coelho JM; Department of Food Engineering, Federal University of Espirito Santo, Alegre, ES, 29500-000, Brazil., Bernardes PC; Department of Food Engineering, Federal University of Espirito Santo, Alegre, ES, 29500-000, Brazil., Dias DR; Department of Food Science, Federal University of Lavras, CEP 37200-900, Lavras, MG, Brazil., Schwan RF; Department of Biology, Federal University of Lavras, CEP 37200-900, Lavras, MG, Brazil. Electronic address: rschwan@ufla.br.
Jazyk: angličtina
Zdroj: Food microbiology [Food Microbiol] 2023 Apr; Vol. 110, pp. 104161. Date of Electronic Publication: 2022 Oct 13.
DOI: 10.1016/j.fm.2022.104161
Abstrakt: This work aimed to evaluate the impact of inoculation single and co-cultivation of LAB and yeasts during the wet process of Coffea canephora using the self-induced anaerobic fermentation method. Saccharomyces cerevisiae, Totulaspora delbrueckii delbrueckii, Leuconostoc mesenteroides, and Lactiplantibacillus plantarum were monitored during fermentation. L. mesenteroides was detected in high concentrations in the coffee fruits (8.54 log10 cells/mL) and remained until the end of fermentation. Lactic and acetic acids were the main acids produced during fermentation. After 36 h of fermentation, 75.39% of malic acid was consumed in the L. mesenteroides + S. cerevisiae (MC) fermentations. In roasted coffee, the caffeine concentration reached 3.29 higher than the green beans in MC fermentation. Specific volatile compounds were detected in inoculated fermentation and may contribute to the beverage quality. Coffee inoculated with Leuconostoc mesenteroides was classified as fine (80.0-89.0), while the other fermentations were classified as premium (70.0-79.0). L. mesenteroides inoculation showed the best sensory score, and the beverage was characterized by caramel, fruity, and spices notes. L. mesenteroides inoculated alone or in co-culture with S. cerevisiae are promising starter cultures to improve Conilon coffee quality and obtain beverages with differentiated sensory profiles.
Competing Interests: Declaration of competing interest The authors do not have any conflict of interest.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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