| Registro completo |
| Provedor de dados: |
Rev. Ciênc. Agron.
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| País: |
Brazil
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| Título: |
Kahweol and cafestol in coffee brews: comparison of preparation methods
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| Autores: |
Wuerges,Karla Leticia
Dias,Rafael Carlos Eloy
Viegas,Marcelo Caldeira
Benassi,Marta de Toledo
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| Data: |
2020-01-01
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| Ano: |
2020
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| Palavras-chave: |
Coffea arabica
Bioactive compounds
Espresso
Filtered coffee brew
Instant coffee
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| Resumo: |
ABSTRACT The profile of bioactive compounds in coffee brews depends on the coffee bean species and varieties, harvesting and post-harvesting practices, roasting processes, and also on the brewing method. The present research aimed to study the contents of cafestol and kahweol - coffee diterpenes with a known impact on human health - comparing coffee beverages prepared using common brewing methods (filtered, espresso, and instant coffee brews). Filtered (cloth-filtered and paper-filtered), espresso and instant brews were obtained from a medium-roasted Coffea arabica coffee (NY 2). Five genuine replicates of each coffee brew were prepared, and the extracts were lyophilized. A validated UPLC-based method provided the content of diterpenes. The results were reported in mg of diterpene per g of solids or per a standard dose of 50 mL of coffee brew. Solids content of coffee brews ranged from 2.06 to 2.46 g 100 mL-1. All coffee brews presented low diterpene contents: 0.05 to 0.16 mg of kahweol and 0.11 to 0.14 mg of cafestol 50 mL-1. Instant coffee brew showed the lowest content of kahweol and absence of cafestol; this reduction was related to the production process of soluble coffee. Diterpenes content was similar in espresso and paper-filtered brews. The cloth-filtered coffee had lower solids content, but higher levels of diterpenes (in mg g-1 of solids). Similar cafestol and kahweol contents (mg 50 mL-1) were observed in filtered and espresso brews.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100410
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| Editor: |
Universidade Federal do Ceará
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| Relação: |
10.5935/1806-6690.20200005
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| Formato: |
text/html
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| Fonte: |
Revista Ciência Agronômica v.51 n.1 2020
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| Direitos: |
info:eu-repo/semantics/openAccess
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