Qualidade da bebida do café- efeito fo acondicionamento e do tempo de conservação
Data
1977
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Instituto Agronômico (IAC)
Resumo
O efeito do tempo de armazenamento sobre a qualidade da bebida de café do cultivar mundo novo de Coffea arábica foi estudado em Campinas, no período de junho de 1974 a março de 1976. Planejou-se o delineamento em blocos ao acaso para as amostras, sendo analisada a bebida do café despolpado e beneficiado conservado em latas hermeti- camente fechadas, em sacos de plástico, de aniagem, de tecido de algodão e de papel. Para os testes de bebida adotou-se o delineamento de blocos ao acaso. Três séries de amostras foram retiradas 5, 16 e 21 meses, após o início do experimento e analisadas quanto à qualidade da bebida, usando-se a escala de 0-5 pontos, normalmente empregada para essas avaliações. Não se notaram efeitos de embalagem nas amostras analisadas na primeira época, tendo as médias de pontos variado de 3,2 a 3,3. Para a segunda e terceira épocas, nota- ram-se diferenças significativas, sendo obtidas médias de pontos maiores nas amostras conservadas em latas e em sacos de plástico, que constituem as melhores embalagens. O tempo de armazenamento influiu desfavoravelmente para os tratamentos. Quanto à cor dos grãos, as amostras conservadas em latas e em sacos de plástico revelaram-se inal- teradas, enquanto as demais pioraram, tornando-se esbranquiçadas. O teor de umidade revelou-se menor nas latas e nos sacos plásticos, bem como os valores da peneira média Nessas embalagens observou-se maior peso de sementes de algumas peneiras.
The effect of storage time on the Coffea arábica cv. Mundo Novo bean cup quality was analysed from June 1974 to March 1976. Five container types were used as follows: can, cotton and jute sacks, polyethylene and kraft paper bags. A randomized block design was used with five replications for each container. Coffee samples were analysed 5, 16, and 21 months after the beginning of the experiment. Coffee cup quality was determined by three independent coffee experts, using randomizd block design and a five point scale for coffee quality evaluation. The coffee samples taken after five months did not reveal any effect of storage in the different containers. The average points attributed to the coffee cup quality varied from 3.2 to 3.3 points Samples taken 16 and 21 months after starting the experiment revealed a significative effect of the container types. The can and the polyethylene bags containers gave better cup quality. The average points given to the cup quality also decreased with storage time in all types of containers used. A marked effect of the container types on the bean color in the seed humidity, size and weight of the beans was observed for the coffee storaged for 21 months. The coffee samples preserved its normal green color in the can and in the polyethylene containers.
The effect of storage time on the Coffea arábica cv. Mundo Novo bean cup quality was analysed from June 1974 to March 1976. Five container types were used as follows: can, cotton and jute sacks, polyethylene and kraft paper bags. A randomized block design was used with five replications for each container. Coffee samples were analysed 5, 16, and 21 months after the beginning of the experiment. Coffee cup quality was determined by three independent coffee experts, using randomizd block design and a five point scale for coffee quality evaluation. The coffee samples taken after five months did not reveal any effect of storage in the different containers. The average points attributed to the coffee cup quality varied from 3.2 to 3.3 points Samples taken 16 and 21 months after starting the experiment revealed a significative effect of the container types. The can and the polyethylene bags containers gave better cup quality. The average points given to the cup quality also decreased with storage time in all types of containers used. A marked effect of the container types on the bean color in the seed humidity, size and weight of the beans was observed for the coffee storaged for 21 months. The coffee samples preserved its normal green color in the can and in the polyethylene containers.
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TEIXEIRA, A.A.; FAZUOLI, L.C.; CARVALHO, A. Qualidade da bebida do café - efeito do acondicionamento e do tempo de conservação. Bragantia, Campinas, v. 36, n. 7, p. 103-108, 1977.