| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Café. |
|
Data corrente: |
05/10/2011 |
|
Data da última atualização: |
05/10/2011 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
KITZBERGER, C. S. G.; SCHOLZ, M. B. S.; PEREIRA, L. F. P.; SERA, T.; SILVA, J. B. G. D.; BENASSI, M. T. |
|
Afiliação: |
Instituto Agronômico do Paraná; Instituto Agronômico do Paraná; LUIZ FILIPE PROTASIO PEREIRA, SAPC; Instituto Agronômico do Paraná; Centro Tecnológico Cocari; Universidade Estadual de Londrina. |
|
Título: |
Analysis of Diterpens in Green and Roasted Coffee of Coffea arabica Cultivars Growing in the Same Edapho-Climatic Conditions. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE OF COFFEE SCIENCE, 23., 2010, Bali. Proceedings... |
|
Idioma: |
Inglês |
|
Conteúdo: |
Lipids are important components of coffee beverage flavor and aroma. Coffee oil is rich in diterpens of the kaurane family, mainly cafestol (C20H28O3) and kahweol (C20H26O3), which have increasingly received attention in recent years due to their physiological effects in human health. However, few studies have been conducted on the effects of the genetic variability for those lipids in Coffea arabica. In this work we initiate the characterization of cafestol and kahweol in different cultivars of Coffea arabica, growing in the same edaphoclimatic conditions. Mature coffee fruits from cultivars Catuaí, Icatu and three Catucaí derived the cultivars IPR 100, IPR 102 and IPR 106. They were harvested at the Agricultural Field Station of the Coop COCARI, Mandaguari, Paraná, Brazil, from May to July 2009. Although the time of harvesting was according to the maturation of each cultivar, harvesting and post-harvesting conditions were the same for all cultivars. The five samples were subjected to medium roasting for 8 to 11 minutes at 200-210 °C, until the degree of roasting light/media (L* around 28). The extraction of diterpens was carried out in green or roasted coffee by direct saponification with KOH, extraction with terc-butyl methyl ether, and clean up with water. A reverse-phase HPLC column with isocratic elution with acetonitrile/water (55/45 v/v) was used for detection and quantification of kahweol at 290 nm and cafestol at 220 nm. In green beans, the level of kahweol was higher than cafestol, for all three IPR cultivars. Meanwhile, the inverse was observed for green beans cultivars Catuaí and Icatu, where cafestol levels were higher than kahweol. The higher levels of kahweol in relation to cafestol were again observed in roasted coffee of the three IPR cultivars. In cultivars Icatu the values for kahweol and cafestol were similar (635 and 683 mg/100 g, respectively). The highest levels of kahweol were observed in cultivar IPR 106 (1096 mg/100 g). The cultivar IPR 102 showed the highest level of cafestol (394 mg/100g). Association of this data with gene expression profile can be useful to find genes involved in cafestol and kahweol metabolism as well as to develop molecular markers for diterpens in coffee. MenosLipids are important components of coffee beverage flavor and aroma. Coffee oil is rich in diterpens of the kaurane family, mainly cafestol (C20H28O3) and kahweol (C20H26O3), which have increasingly received attention in recent years due to their physiological effects in human health. However, few studies have been conducted on the effects of the genetic variability for those lipids in Coffea arabica. In this work we initiate the characterization of cafestol and kahweol in different cultivars of Coffea arabica, growing in the same edaphoclimatic conditions. Mature coffee fruits from cultivars Catuaí, Icatu and three Catucaí derived the cultivars IPR 100, IPR 102 and IPR 106. They were harvested at the Agricultural Field Station of the Coop COCARI, Mandaguari, Paraná, Brazil, from May to July 2009. Although the time of harvesting was according to the maturation of each cultivar, harvesting and post-harvesting conditions were the same for all cultivars. The five samples were subjected to medium roasting for 8 to 11 minutes at 200-210 °C, until the degree of roasting light/media (L* around 28). The extraction of diterpens was carried out in green or roasted coffee by direct saponification with KOH, extraction with terc-butyl methyl ether, and clean up with water. A reverse-phase HPLC column with isocratic elution with acetonitrile/water (55/45 v/v) was used for detection and quantification of kahweol at 290 nm and cafestol at 220 nm. In green beans, the level of kahweol was hig... Mostrar Tudo |
|
Thesagro: |
Coffea Arábica. |
|
Thesaurus Nal: |
Cultivars. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42900/1/Analysis-of-diterpens-in-green.pdf
|
|
Marc: |
LEADER 02908nam a2200193 a 4500
001 1902421
005 2011-10-05
008 2011 bl uuuu u00u1 u #d
100 1 $aKITZBERGER, C. S. G.
245 $aAnalysis of Diterpens in Green and Roasted Coffee of Coffea arabica Cultivars Growing in the Same Edapho-Climatic Conditions.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE OF COFFEE SCIENCE, 23., 2010, Bali. Proceedings...$c2011
520 $aLipids are important components of coffee beverage flavor and aroma. Coffee oil is rich in diterpens of the kaurane family, mainly cafestol (C20H28O3) and kahweol (C20H26O3), which have increasingly received attention in recent years due to their physiological effects in human health. However, few studies have been conducted on the effects of the genetic variability for those lipids in Coffea arabica. In this work we initiate the characterization of cafestol and kahweol in different cultivars of Coffea arabica, growing in the same edaphoclimatic conditions. Mature coffee fruits from cultivars Catuaí, Icatu and three Catucaí derived the cultivars IPR 100, IPR 102 and IPR 106. They were harvested at the Agricultural Field Station of the Coop COCARI, Mandaguari, Paraná, Brazil, from May to July 2009. Although the time of harvesting was according to the maturation of each cultivar, harvesting and post-harvesting conditions were the same for all cultivars. The five samples were subjected to medium roasting for 8 to 11 minutes at 200-210 °C, until the degree of roasting light/media (L* around 28). The extraction of diterpens was carried out in green or roasted coffee by direct saponification with KOH, extraction with terc-butyl methyl ether, and clean up with water. A reverse-phase HPLC column with isocratic elution with acetonitrile/water (55/45 v/v) was used for detection and quantification of kahweol at 290 nm and cafestol at 220 nm. In green beans, the level of kahweol was higher than cafestol, for all three IPR cultivars. Meanwhile, the inverse was observed for green beans cultivars Catuaí and Icatu, where cafestol levels were higher than kahweol. The higher levels of kahweol in relation to cafestol were again observed in roasted coffee of the three IPR cultivars. In cultivars Icatu the values for kahweol and cafestol were similar (635 and 683 mg/100 g, respectively). The highest levels of kahweol were observed in cultivar IPR 106 (1096 mg/100 g). The cultivar IPR 102 showed the highest level of cafestol (394 mg/100g). Association of this data with gene expression profile can be useful to find genes involved in cafestol and kahweol metabolism as well as to develop molecular markers for diterpens in coffee.
650 $aCultivars
650 $aCoffea Arábica
700 1 $aSCHOLZ, M. B. S.
700 1 $aPEREIRA, L. F. P.
700 1 $aSERA, T.
700 1 $aSILVA, J. B. G. D.
700 1 $aBENASSI, M. T.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Café (CNPCa) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
27/02/2015 |
|
Data da última atualização: |
02/06/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
MOTA, D. M. da; SCHMITZ, H.; SILVA JUNIOR, J. F. da; RODRIGUES, R. F. de A. |
|
Afiliação: |
DALVA MARIA DA MOTA, CPATU; Heribert Schmitz, UFPA; JOSUE FRANCISCO DA SILVA JUNIOR, CPATC; RAQUEL FERNANDES DE A RODRIGUES, CPATC. |
|
Título: |
O trabalho familiar extrativista sob a influência de políticas públicas. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Revista de Economia e Sociologia Rural, Brasília, DF, v. 52, p. S189-S204, 2014. Supl.1. |
|
DOI: |
http://dx.doi.org/10.1590/S0103-20032014000600010 |
|
Idioma: |
Português |
|
Conteúdo: |
O artigo analisa a relação entre a organização do trabalho familiar no extrativismo e a participação em programas de políticas públicas no estado de Sergipe. Com abordagem predominantemente qualitativa, a pesquisa foi realizada com mulheres autodesignadas catadoras de mangaba e marisqueiras, reconhecidas como pertinentes ao segmento dos denominados povos e comunidades tradicionais e afiliadas ao Programa Bolsa Família (PBF), ao Seguro Desemprego do Pescador Artesanal (SDPA) e ao Programa de Aquisição de Alimentos (PAA). A metodologia constou de observações e entrevistas com diferentes atores envolvidos na atividade extrativista e nos programas de políticas públicas. As principais conclusões mostram que os programas de políticas públicas influenciam: i) na reorganização do cotidiano do trabalho no extrativismo, principalmente no tocante à diminuição do envolvimento de crianças e jovens na atividade e quanto à intensidade das jornadas; ii) no reforço aos papéis tradicionais de homens e mulheres, no caso do PBF, e na diluição de fronteiras entre esses mesmos papéis no PAA; iii) na diminuição do volume de trabalho no caso do SDPA e no aumento no PAA; e iv) nos diferentes sentidos que são atribuídos ao trabalho. |
|
Palavras-Chave: |
Artisanal Fishermen; Catadoras de mangaba; Closed Season Insurance; Family Grant Program; Food Acquisition Program; Mangaba gatherer women; Pescador artesanal; Programa Bolsa Família; Programa de Aquisição de Alimentos; Seguro desemprego. |
|
Categoria do assunto: |
B Sociologia Rural |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118899/1/a10v52s1.pdf
|
|
Marc: |
LEADER 02241naa a2200289 a 4500
001 2010166
005 2022-06-02
008 2014 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S0103-20032014000600010$2DOI
100 1 $aMOTA, D. M. da
245 $aO trabalho familiar extrativista sob a influência de políticas públicas.$h[electronic resource]
260 $c2014
520 $aO artigo analisa a relação entre a organização do trabalho familiar no extrativismo e a participação em programas de políticas públicas no estado de Sergipe. Com abordagem predominantemente qualitativa, a pesquisa foi realizada com mulheres autodesignadas catadoras de mangaba e marisqueiras, reconhecidas como pertinentes ao segmento dos denominados povos e comunidades tradicionais e afiliadas ao Programa Bolsa Família (PBF), ao Seguro Desemprego do Pescador Artesanal (SDPA) e ao Programa de Aquisição de Alimentos (PAA). A metodologia constou de observações e entrevistas com diferentes atores envolvidos na atividade extrativista e nos programas de políticas públicas. As principais conclusões mostram que os programas de políticas públicas influenciam: i) na reorganização do cotidiano do trabalho no extrativismo, principalmente no tocante à diminuição do envolvimento de crianças e jovens na atividade e quanto à intensidade das jornadas; ii) no reforço aos papéis tradicionais de homens e mulheres, no caso do PBF, e na diluição de fronteiras entre esses mesmos papéis no PAA; iii) na diminuição do volume de trabalho no caso do SDPA e no aumento no PAA; e iv) nos diferentes sentidos que são atribuídos ao trabalho.
653 $aArtisanal Fishermen
653 $aCatadoras de mangaba
653 $aClosed Season Insurance
653 $aFamily Grant Program
653 $aFood Acquisition Program
653 $aMangaba gatherer women
653 $aPescador artesanal
653 $aPrograma Bolsa Família
653 $aPrograma de Aquisição de Alimentos
653 $aSeguro desemprego
700 1 $aSCHMITZ, H.
700 1 $aSILVA JUNIOR, J. F. da
700 1 $aRODRIGUES, R. F. de A.
773 $tRevista de Economia e Sociologia Rural, Brasília, DF$gv. 52, p. S189-S204, 2014. Supl.1.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
