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Biotecnología en el Sector Agropecuario y Agroindustrial
versión impresa ISSN 1692-3561
Resumen
OMANA, MÓNICA; CORTES, FARID; ISAZA, CESAR y GARCIA, ANA. SORPTION ISOTHERMS OF WATER IN ORANGE JUICE EXTRACTION RESIDUES. Rev.Bio.Agro [online]. 2010, vol.8, n.1, pp.61-67. ISSN 1692-3561.
Waste from orange juice extraction, such as skins, shells and seeds, are known as citrus pulp, they may cause two major impacts, be a potential source ofraw material in the food industry concentrates for animals, and reduce problem posed to the environment with unnecessary use of landfills. The purpose of this paper is to obtain experimental sorption isotherms of this waste, at a temperature of 20° in a wide range of water activity (0.33 -0.97) from the two producers of orange juice, called Túnez and Pomelo. The process used to determine isothermal sorption curves, is the method recommended by the COST Project 90, which consisted of placing a known amount of sample in an airtight container with a given relative humidity until the weight does not vary orreaches balance. In addition, an adjustment to the model proposed by Smith obtained average errors of 8.56% and 7.57% for Túnez and Pomelo, respectively.
Palabras clave : Citrus pulp; isotherms of sorption; project COST 90; equation Smith.