Hydration kinetics of four quinoa (Chenopodium quinoa Willd.) varieties | Pumacahua Ramos | Revista Colombiana de Investigaciones Agroindustriales

Revista Colombiana de Investigaciones Agroindustriales

Hydration kinetics of four quinoa (Chenopodium quinoa Willd.) varieties

Augusto Pumacahua Ramos, Katherine Milusca Limaylla Guerrero, Javier Telis Romero, Jose Francisco Lopes Filho


The effect of time, temperature and varieties were analyzed during kinetics hydration of quinoa grains and some physical properties were determined. Quinoa grain varieties Kancolla, Salcedo Inia, Blanca de Juli and Pasankalla were used in the study. The hydration was performed in triplicate with 25 g of grain immersed into a solution with 0.55% lactic acid and 0.2% SO2, three temperatures (30, 40 and 50°C) at seven time intervals from 0 to 6 hours were considered to determine moisture of the grains. Moisture data were adjusted to empiric model of Peleg and to the diffusion model based on the Fick’s second law. Effective diffusivity as well as activation energy of the water absorption was also determined. The data were submitted to analyses of variance (ANOVA) and Tukey’s means difference test at 5% probability. Models adjustments were evaluated through determination coefficient (R2) and mean quadratic error (RMSE). Physical properties of Pasankalla variety shown different values compared with white varieties. Peleg’s model constants K1 ranged from 28 to 65.8 (s/%) and K2 from 0.004 to 0.008 (1/%). The effective diffusivity ranged from 2.594 x 10-11 to 8.180 x 10-11 m2.s-1 and activation energy from 210.5 to 1648.5 kJ.k-



Para citar este artículo

Pumacahua, A., Limaylla, K., Telis, J. y Lopes, J. (2016). Hydration kinetics of four quinoa (Chenopodium quinoa Willd.) varieties. Rev. Colomb. Investig. Agroindustriales, 3(1), 23-33. DOI: http://dx.doi.org/10.23850/24220582.348

Palabras clave

Granos de quinua; humedad; Peleg; segunda ley de Fick; energía de activación

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DOI: https://doi.org/10.23850/24220582.348

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Revista Colombiana de Investigaciones Agroindustriales

Editor Jefe José Libardo Tapiero Cuellar PhD (C): Líder Grupo de Investigación GICTACAB. José Edinson Escobar Salcedo: Líder SENNOVA - Editor Asociado. Maria Andrea Benitez De la Ossa: Gestor Editorial. Luis Fernando Delgado Muñoz: Dinamizador Editorial SENA, Centro Agropecuario, Buga. Kilómetro 2, Carretera central vía Buga-Tuluá. Valle del Cauca, Colombia - Teléfono: 57-2-2376300, ext. 23291. E-mail: revistagroindustrial@sena.edu.co

ISSN: 2422-0582  e-ISSN: 2422-4456

DOI: https://doi.org/10.23850/issn.2422-0582