DistribuiÃÃo espacial de cafÃs do estado de Minas Gerais e sua relaÃÃo com a qualidade da bebida. / Spatial distribution of coffees from Minas Gerais state and their relation with quality

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Coffee is the second most important agricultural exportation product in Brazil, constituting one of the main income sources of the Brazilian economy. The state of Minas Gerais is the countryâs biggest coffee producer. Recently, coffees produced in the state have won national specialty coffee contests, which has increased their commercial value and established them in the market. Due to the necessity of more information on areas with potential for producing quality coffee, the objective of this work was to relate the sensorial quality and trigonelline, caffeine and 5-cafeoylquinic acid content of the coffees entered in the Quality Contest- Coffee from Minas Gerais, in 2007 and 2008, with the environmental characteristics of the stateâs districts. The samples were distributed in four stages, the first composed of all the coffees entered in the contest, and the last composed only of the pre-finalists. The samples were categorized into natural and pulped natural. The spatialization of the samples from both years was done using Kernel maps to visualize the intensity of sample concentration in each stage of the contest. The results show that in the first stage the samples were well distributed in focus, with medium, high and very high intensity. In the fourth stage, a high concentration in the South of Minas region was observed for both years in both the coffee categories. The correlations between environmental factors, chemical compounds and sensorial quality were done through Principal Component Analysis and Biplot graphs. 60 coffees were selected, 30 natural and 30 pulped natural, 15 with scores over 80 and 15 with scores under 75 points, according to the BSCA methodology for sensorial analysis of the coffee beverage. The results showed high and low scores due to environmental variables, the chemical compounds analyzed and the sensorial quality. Geostatistical studies of the 2007 samples showed, through semivariograms, that the models tested adjusted to the data studied. The data from the 60 selected samples did not present model adjustment. However, the results are still a relevant contribution, as they point out new paths for future works on the spatialization of coffee quality in Minas Gerais.

ASSUNTO(S)

spatial distribution qualidade cafà espacializaÃÃo minas gerais anÃlise sensorial agronomia quality mapas de kernel coffees bebida

ACESSO AO ARTIGO

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