Biblioteca do Café
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1
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Item Espectroscopia no infravermelho médio e análise sensorial aplicada à detecção de adulteração de café torrado por adição de cascas de café(Sociedade Brasileira de Química, 2012) Tavares, Katiany Mansur; Pereira, Rosemary Gualberto Fonseca Alvarenga; Nunes, Cleiton Antônio; Pinheiro, Ana Carla Marques; Rodarte, Mírian Pereira; Guerreiro, Mário CésarMid-infrared spectroscopy and chemometrics were used to identify adulteration in roasted and ground coffee by addition of coffee husks. Consumers’ sensory perception of the adulteration was evaluated by a triangular test of the coffee beverages. Samples containing above 0.5% of coffee husks from pure coffees were discriminated by principal component analysis of the infrared spectra. A partial least-squares regression estimated the husk content in samples and presented a root-mean-square error for prediction of 2.0%. The triangular test indicated that were than 10% of coffee husks are required to cause alterations in consumer perception about adulterated beverages.Item Análise sensorial de café adulterado com diferentes teores de cascas do fruto do cafeeiro(Embrapa Café, 2011) Tavares, K. M.; Pereira, R. G. F. A.; Pinheiro, Ana Carla Marques; Rodarte, M. P.; Eugênio, M. H. A.Este trabalho teve como objetivo avaliar a bebida obtida do café (Coffea arabica L.) adulterado com diferentes percentuais de cascas do fruto do cafeeiro.