Post-harvest effects on beverage quality and physiological performance of coffee beans
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/37173 |
Resumo: | During coffee drying, different temperatures applied to the beans with varied humidity content levels can interfere in the membranes integrity, germination, organic acid and carbohydrate content resulting in coffees with distinct flavors. The quality control of the beans will be much more effective the earlier the alterations provoked in the postharvest are detected. This work has an objective to study alternative methods for the dehydration of the coffee beans using ultra-drying followed by slow drying and its impact on the sensorial quality, chemical composition and physiology. For that purpose, coffee lots were processed by the methods, dry (natural coffee) and wet (fully washed coffee); and sun-dried and machine-dried at a constant 60°C temperature and alternating 60/40°C. The sensory quality of the samples was assessed by the Specialty Coffee Association of America (SCAA) analysis protocol. The sugar, total titratable acidity and the phenolic compound content was also analyzed. The physiological alterations of the coffee beans were analyzed by germination tests, emergence speed index, electrical conductivity and potassium leaching. The temperature of the drying air significantly altered the sensorial quality of the coffee beans. The processing way associated to drying methods causes many physiological alterations with the highest damage observed in the natural coffees. For the first time, we are showing that drying with heated air at 60/40ºC is promising for the fully washed coffee beans, which are more tolerant to dehydration than the natural coffee beans. Conversely, the natural coffee beans were much more sensitive to drying regardless the temperature, with very low performance in the physiological analyses. The drying at the constant 60ºC temperature is inappropriate for the natural coffee as well as for the fully washed coffee beans. In addition, the physiological tests used were shown effective for the early evaluation of coffee beans quality. |
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Post-harvest effects on beverage quality and physiological performance of coffee beansCoffea arabica L.ProcessingDryingSensory analysisChemical compositionGerminationDuring coffee drying, different temperatures applied to the beans with varied humidity content levels can interfere in the membranes integrity, germination, organic acid and carbohydrate content resulting in coffees with distinct flavors. The quality control of the beans will be much more effective the earlier the alterations provoked in the postharvest are detected. This work has an objective to study alternative methods for the dehydration of the coffee beans using ultra-drying followed by slow drying and its impact on the sensorial quality, chemical composition and physiology. For that purpose, coffee lots were processed by the methods, dry (natural coffee) and wet (fully washed coffee); and sun-dried and machine-dried at a constant 60°C temperature and alternating 60/40°C. The sensory quality of the samples was assessed by the Specialty Coffee Association of America (SCAA) analysis protocol. The sugar, total titratable acidity and the phenolic compound content was also analyzed. The physiological alterations of the coffee beans were analyzed by germination tests, emergence speed index, electrical conductivity and potassium leaching. The temperature of the drying air significantly altered the sensorial quality of the coffee beans. The processing way associated to drying methods causes many physiological alterations with the highest damage observed in the natural coffees. For the first time, we are showing that drying with heated air at 60/40ºC is promising for the fully washed coffee beans, which are more tolerant to dehydration than the natural coffee beans. Conversely, the natural coffee beans were much more sensitive to drying regardless the temperature, with very low performance in the physiological analyses. The drying at the constant 60ºC temperature is inappropriate for the natural coffee as well as for the fully washed coffee beans. In addition, the physiological tests used were shown effective for the early evaluation of coffee beans quality.Academic Journals2019-10-10T19:14:29Z2019-10-10T19:14:29Z2015-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfTAVEIRA, J. H. da S. et al. Post-harvest effects on beverage quality and physiological performance of coffee beans. African Journal of Agricultural Research, [S.l.], v. 10, n. 12, p. 1457-1466, Mar. 2015.http://repositorio.ufla.br/jspui/handle/1/37173African Journal of Agricultural Researchreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessTaveira, José Henrique da S.Borém, Flávio M.Rosa, Sttela Delyzette V. F. daOliveira, Pedro D.Giomo, Gerson S.Isquierdo, Eder P.Fortunato, Valquíria A.eng2023-05-02T18:53:50Zoai:localhost:1/37173Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-02T18:53:50Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
title |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
spellingShingle |
Post-harvest effects on beverage quality and physiological performance of coffee beans Taveira, José Henrique da S. Coffea arabica L. Processing Drying Sensory analysis Chemical composition Germination |
title_short |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
title_full |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
title_fullStr |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
title_full_unstemmed |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
title_sort |
Post-harvest effects on beverage quality and physiological performance of coffee beans |
author |
Taveira, José Henrique da S. |
author_facet |
Taveira, José Henrique da S. Borém, Flávio M. Rosa, Sttela Delyzette V. F. da Oliveira, Pedro D. Giomo, Gerson S. Isquierdo, Eder P. Fortunato, Valquíria A. |
author_role |
author |
author2 |
Borém, Flávio M. Rosa, Sttela Delyzette V. F. da Oliveira, Pedro D. Giomo, Gerson S. Isquierdo, Eder P. Fortunato, Valquíria A. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Taveira, José Henrique da S. Borém, Flávio M. Rosa, Sttela Delyzette V. F. da Oliveira, Pedro D. Giomo, Gerson S. Isquierdo, Eder P. Fortunato, Valquíria A. |
dc.subject.por.fl_str_mv |
Coffea arabica L. Processing Drying Sensory analysis Chemical composition Germination |
topic |
Coffea arabica L. Processing Drying Sensory analysis Chemical composition Germination |
description |
During coffee drying, different temperatures applied to the beans with varied humidity content levels can interfere in the membranes integrity, germination, organic acid and carbohydrate content resulting in coffees with distinct flavors. The quality control of the beans will be much more effective the earlier the alterations provoked in the postharvest are detected. This work has an objective to study alternative methods for the dehydration of the coffee beans using ultra-drying followed by slow drying and its impact on the sensorial quality, chemical composition and physiology. For that purpose, coffee lots were processed by the methods, dry (natural coffee) and wet (fully washed coffee); and sun-dried and machine-dried at a constant 60°C temperature and alternating 60/40°C. The sensory quality of the samples was assessed by the Specialty Coffee Association of America (SCAA) analysis protocol. The sugar, total titratable acidity and the phenolic compound content was also analyzed. The physiological alterations of the coffee beans were analyzed by germination tests, emergence speed index, electrical conductivity and potassium leaching. The temperature of the drying air significantly altered the sensorial quality of the coffee beans. The processing way associated to drying methods causes many physiological alterations with the highest damage observed in the natural coffees. For the first time, we are showing that drying with heated air at 60/40ºC is promising for the fully washed coffee beans, which are more tolerant to dehydration than the natural coffee beans. Conversely, the natural coffee beans were much more sensitive to drying regardless the temperature, with very low performance in the physiological analyses. The drying at the constant 60ºC temperature is inappropriate for the natural coffee as well as for the fully washed coffee beans. In addition, the physiological tests used were shown effective for the early evaluation of coffee beans quality. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03 2019-10-10T19:14:29Z 2019-10-10T19:14:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
TAVEIRA, J. H. da S. et al. Post-harvest effects on beverage quality and physiological performance of coffee beans. African Journal of Agricultural Research, [S.l.], v. 10, n. 12, p. 1457-1466, Mar. 2015. http://repositorio.ufla.br/jspui/handle/1/37173 |
identifier_str_mv |
TAVEIRA, J. H. da S. et al. Post-harvest effects on beverage quality and physiological performance of coffee beans. African Journal of Agricultural Research, [S.l.], v. 10, n. 12, p. 1457-1466, Mar. 2015. |
url |
http://repositorio.ufla.br/jspui/handle/1/37173 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Academic Journals |
publisher.none.fl_str_mv |
Academic Journals |
dc.source.none.fl_str_mv |
African Journal of Agricultural Research reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835204917657600 |