Resumo

DUSSAN-SARRIA, Saúl; GARZON-GARCIA, Alba M.  e  MELO-SEVILLA, Raúl E.. Development and evaluation of a color measurement prototype in fresh vegetables. Inf. tecnol. [online]. 2020, vol.31, n.1, pp.253-260. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642020000100253.

The aim of this work was to develop and evaluate a color measurement prototype in fresh vegetables as an economic alternative to equipment and commercial techniques. The DHT11 temperature and TCS230-3200 color sensors were used connected to a data acquisition card (Arduino Nano). The information transfer to a computer was established with the PXL-DAQ and Microsoft Excel® 2013 software, and the measurements were recorded in RGB color model for its conversion to CIE L*a*b* system. Comparison tests of measurements were carried out on PANTONE color chart with the prototype and a Konica Minolta CR-400 colorimeter, determining the average error between measurements. An average error of 15,57% and 27,45% was found in the measurements registered by the color prototype and the colorimeter, respectively, which showed that the use of prototype is an appropriate alternative technique for measuring color in fresh vegetables.

Palavras-chave : measuring equipment; quality food; data acquisition system, colorimeter.

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