Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por eng spa |
Título da fonte: | Coffee Science (Online) |
Texto Completo: | https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50 |
Resumo: | The present work studied the chemical composition of arabica coffee (Coffea arabica L.) and defective beans (black, green and brown beans), from the same origin, submitted to different degrees of roasting. The coffee samples came from the Minas Gerais savannah (“cerrado”). The beverages prepared from defective beans were sourer, probably due to beans fermentation. Also, the presence of defective beans reduced the essential oil concentration and raised the levels of undesirable compounds in the aroma, such as low molecular mass, aldehydes, and sulfides. Otherwise, the defective and good coffee bean substrates were quite similar, composed mainly of carbohydrates, proteins, lipids, ash, phenols, carboxylic acids, trigonelline, and caffeine. Extended roasting reduced the difference between the odor activity of the potent odorants in the two analyzed beverages, making it more difficult to distinguish their aromas. |
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Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roastingAnálise química de café arábica e grãos pretos, verdes e ardidos (PVA) submetidos a diferentes graus de torraçãoCoffea arabicadefective beansessential oilpotent odorantsCoffea arabicaPVAóleo essencialodorantes potentesThe present work studied the chemical composition of arabica coffee (Coffea arabica L.) and defective beans (black, green and brown beans), from the same origin, submitted to different degrees of roasting. The coffee samples came from the Minas Gerais savannah (“cerrado”). The beverages prepared from defective beans were sourer, probably due to beans fermentation. Also, the presence of defective beans reduced the essential oil concentration and raised the levels of undesirable compounds in the aroma, such as low molecular mass, aldehydes, and sulfides. Otherwise, the defective and good coffee bean substrates were quite similar, composed mainly of carbohydrates, proteins, lipids, ash, phenols, carboxylic acids, trigonelline, and caffeine. Extended roasting reduced the difference between the odor activity of the potent odorants in the two analyzed beverages, making it more difficult to distinguish their aromas.No presente trabalho estudou-se a composição química de um café arábica (Coffea arabica L.) e de grãos pretos, verdes e ardidos (PVA), do mesmo lote e origem, submetido a diferentes graus de torração. Foram utilizadas amostras de café provenientes do Cerrado Mineiro. A acidez foi maior nos extratos obtidos de grãos PVA, provavelmente devido à ocorrência de processos fermentativos nos frutos. Além disso, a presença de defeitos reduz a concentração de óleo essencial e aumenta os teores de substâncias indesejáveis para o aroma, como aldeídos de baixa massa molar e sulfetos. No entanto, os substratos dos grãos PVA e café são semelhantes, compondo-se basicamente por carboidratos, proteínas, lipídios, cinzas, fenóis, ácidos carboxílicos, trigonelina e cafeína. A torração prolongada (torração escura) reduziu a diferença entre as atividades odoríficas dos odorantes potentes nas duas bebidas analisadas, dificultando a distinção dos seus aromas.Editora UFLA2008-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/pdfhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/50Coffee Science - ISSN 1984-3909; Vol. 2 No. 2 (2007); p. 97-111Coffee Science; Vol. 2 Núm. 2 (2007); p. 97-111Coffee Science; v. 2 n. 2 (2007); p. 97-1111984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporengspahttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/93https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/46https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/47Copyright (c) 2008 Coffee Science - ISSN 1984-3909https://creativecommons.org/info:eu-repo/semantics/openAccessMorais, Sérgio Antônio Lemos deAquino, Francisco José Tôrres deChang, RobertoNascimento, Evandro Afonso doOliveira, Grasielle Silva deSantos, Neide Carolina dos2013-02-23T12:35:28Zoai:coffeescience.ufla.br:article/50Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:53:27.923618Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting Análise química de café arábica e grãos pretos, verdes e ardidos (PVA) submetidos a diferentes graus de torração |
title |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
spellingShingle |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting Morais, Sérgio Antônio Lemos de Coffea arabica defective beans essential oil potent odorants Coffea arabica PVA óleo essencial odorantes potentes |
title_short |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
title_full |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
title_fullStr |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
title_full_unstemmed |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
title_sort |
Chemical analysis of arabica coffee (Coffea arabica l.) and defective beans submitted to different degrees of roasting |
author |
Morais, Sérgio Antônio Lemos de |
author_facet |
Morais, Sérgio Antônio Lemos de Aquino, Francisco José Tôrres de Chang, Roberto Nascimento, Evandro Afonso do Oliveira, Grasielle Silva de Santos, Neide Carolina dos |
author_role |
author |
author2 |
Aquino, Francisco José Tôrres de Chang, Roberto Nascimento, Evandro Afonso do Oliveira, Grasielle Silva de Santos, Neide Carolina dos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Morais, Sérgio Antônio Lemos de Aquino, Francisco José Tôrres de Chang, Roberto Nascimento, Evandro Afonso do Oliveira, Grasielle Silva de Santos, Neide Carolina dos |
dc.subject.por.fl_str_mv |
Coffea arabica defective beans essential oil potent odorants Coffea arabica PVA óleo essencial odorantes potentes |
topic |
Coffea arabica defective beans essential oil potent odorants Coffea arabica PVA óleo essencial odorantes potentes |
description |
The present work studied the chemical composition of arabica coffee (Coffea arabica L.) and defective beans (black, green and brown beans), from the same origin, submitted to different degrees of roasting. The coffee samples came from the Minas Gerais savannah (“cerrado”). The beverages prepared from defective beans were sourer, probably due to beans fermentation. Also, the presence of defective beans reduced the essential oil concentration and raised the levels of undesirable compounds in the aroma, such as low molecular mass, aldehydes, and sulfides. Otherwise, the defective and good coffee bean substrates were quite similar, composed mainly of carbohydrates, proteins, lipids, ash, phenols, carboxylic acids, trigonelline, and caffeine. Extended roasting reduced the difference between the odor activity of the potent odorants in the two analyzed beverages, making it more difficult to distinguish their aromas. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50 |
url |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50 |
dc.language.iso.fl_str_mv |
por eng spa |
language |
por eng spa |
dc.relation.none.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/93 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/46 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/50/47 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2008 Coffee Science - ISSN 1984-3909 https://creativecommons.org/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2008 Coffee Science - ISSN 1984-3909 https://creativecommons.org/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Editora UFLA |
publisher.none.fl_str_mv |
Editora UFLA |
dc.source.none.fl_str_mv |
Coffee Science - ISSN 1984-3909; Vol. 2 No. 2 (2007); p. 97-111 Coffee Science; Vol. 2 Núm. 2 (2007); p. 97-111 Coffee Science; v. 2 n. 2 (2007); p. 97-111 1984-3909 reponame:Coffee Science (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Coffee Science (Online) |
collection |
Coffee Science (Online) |
repository.name.fl_str_mv |
Coffee Science (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com |
_version_ |
1799874918287933440 |