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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
05/10/2011 |
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Data da última atualização: |
05/10/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
KITZBERGER, C. S. G.; SCHOLZ, M. B. S.; PEREIRA, L. F. P.; SERA, T.; SILVA, J. B. G. D.; BENASSI, M. T. |
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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. |
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Título: |
Analysis of Diterpens in Green and Roasted Coffee of Coffea arabica Cultivars Growing in the Same Edapho-Climatic Conditions. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE OF COFFEE SCIENCE, 23., 2010, Bali. Proceedings... |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Coffea Arábica. |
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Thesaurus Nal: |
Cultivars. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42900/1/Analysis-of-diterpens-in-green.pdf
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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 $aIn: INTERNATIONAL CONFERENCE OF COFFEE SCIENCE, 23., 2010, Bali. Proceedings...$c2010
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.
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Registro original: |
Embrapa Café (CNPCa) |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
14/08/2003 |
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Data da última atualização: |
08/05/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
CARNEIRO, J. da C.; VAZ, F. A.; VALENTIM, J. F.; VALLE, L. A. R. do; WENDLING, I. J.; FEITOZA, J. E. |
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Afiliação: |
JAILTON DA COSTA CARNEIRO, CNPGL; FELIPE ALEXANDRE VAZ, BOLSISTA DCR/CNPq/EMBRAPA; JUDSON FERREIRA VALENTIM, CPAF-AC; LUÍS AUGUSTO RIBEIRO DO VALLE, AGROPECUÁRIA GUAXUPÉ; IVAN JANNOTTI WENDLING, UNIVERSIDADE VALE DO RIO DOCE; JOSÉ ÉLCIO FEITOZA, AGROPECUÁRIA IRACEMA. |
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Título: |
Utilização de suplementos para a manutenção de novilhos em pastagens durante o período seco no Acre. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2001. |
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Páginas: |
5 p. |
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Série: |
(Embrapa Acre. Comunicado técnico, 124). |
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ISSN: |
0100-8668 |
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Idioma: |
Português |
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Conteúdo: |
A pecuária no Acre tem como característica o uso de pastagens formadas com gramíneas, principalmente as espécies do gênero Brachiaria. A partir de 1998, a Embrapa Acre, em parceria com a iniciativa privada, iniciou uma série de estudos com o objetivo de avaliar o desempenho animal e o retorno econômico do uso de diferentes suplementos na fase de crescimento de novilhos, mantidos em pastagem de Brachiaria humidicula e B. decumbens. Este trabalho apresenta os resultados e as recomendações técnicas para que os produtores decidam se é conveniente ou não, utilizar esta tecnologia visando aumentar a eficiência e a rentabilidade de seus empreendimentos. |
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Palavras-Chave: |
Acre; Alimentación de animales; Amazônia Ocidental; Amzonia Occidental; Control funcional del rendimiento; Estación seca; Fazenda Guaxupé (AC); Novillos; Nutrición animal; Pastizales; Pastos forrajeros; Rio Branco (AC); Suplementos dietéticos; Western Amazon. |
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Thesagro: |
Alimentação Na Seca; Brachiaria Decumbens; Brachiaria Humidicola; Capim Brachiaria; Capim Quicuio; Gramínea Forrageira; Novilho; Nutrição Animal; Pastagem; Rendimento; Suplemento Alimentar. |
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Thesaurus NAL: |
Animal feeding; Animal nutrition; Bullocks; Dietary supplements; Dry season; Forage grasses; Pastures; Urochloa decumbens; Urochloa humidicola; Yield monitoring. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAF-AC/3718/1/comunicado124.pdf
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Marc: |
LEADER 02447nam a2200625 a 4500
001 1495151
005 2023-05-08
008 2001 bl uuuu u0uu1 u #d
022 $a0100-8668
100 1 $aCARNEIRO, J. da C.
245 $aUtilização de suplementos para a manutenção de novilhos em pastagens durante o período seco no Acre.$h[electronic resource]
260 $aRio Branco, AC: Embrapa Acre$c2001
300 $a5 p.
490 $a(Embrapa Acre. Comunicado técnico, 124).
520 $aA pecuária no Acre tem como característica o uso de pastagens formadas com gramíneas, principalmente as espécies do gênero Brachiaria. A partir de 1998, a Embrapa Acre, em parceria com a iniciativa privada, iniciou uma série de estudos com o objetivo de avaliar o desempenho animal e o retorno econômico do uso de diferentes suplementos na fase de crescimento de novilhos, mantidos em pastagem de Brachiaria humidicula e B. decumbens. Este trabalho apresenta os resultados e as recomendações técnicas para que os produtores decidam se é conveniente ou não, utilizar esta tecnologia visando aumentar a eficiência e a rentabilidade de seus empreendimentos.
650 $aAnimal feeding
650 $aAnimal nutrition
650 $aBullocks
650 $aDietary supplements
650 $aDry season
650 $aForage grasses
650 $aPastures
650 $aUrochloa decumbens
650 $aUrochloa humidicola
650 $aYield monitoring
650 $aAlimentação Na Seca
650 $aBrachiaria Decumbens
650 $aBrachiaria Humidicola
650 $aCapim Brachiaria
650 $aCapim Quicuio
650 $aGramínea Forrageira
650 $aNovilho
650 $aNutrição Animal
650 $aPastagem
650 $aRendimento
650 $aSuplemento Alimentar
653 $aAcre
653 $aAlimentación de animales
653 $aAmazônia Ocidental
653 $aAmzonia Occidental
653 $aControl funcional del rendimiento
653 $aEstación seca
653 $aFazenda Guaxupé (AC)
653 $aNovillos
653 $aNutrición animal
653 $aPastizales
653 $aPastos forrajeros
653 $aRio Branco (AC)
653 $aSuplementos dietéticos
653 $aWestern Amazon
700 1 $aVAZ, F. A.
700 1 $aVALENTIM, J. F.
700 1 $aVALLE, L. A. R. do
700 1 $aWENDLING, I. J.
700 1 $aFEITOZA, J. E.
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Embrapa Acre (CPAF-AC) |
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