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versión On-line ISSN 0718-0764
HERNANDEZ, Carlos; RODRIGUEZ, Ysamar y NINO, Zulay. Effect of Grains of Maize (Zea mays) Storage on the Quality of the Extracted Oil. Inf. tecnol. [online]. 2009, vol.20, n.4, pp.21-30. ISSN 0718-0764. http://dx.doi.org/10.4067/S0718-07642009000400004.
The effect of storage time on grains of yellow maize (Zea mays) was evaluated on the quality of the oil obtained. The quality parameters detected at the reception of the maize were: indexes of acidity, peroxide and the color of the oil extracted from grains stored in a concrete silo for 0, 30, 60 and 90 days, using the procedures described in the patterns in Venezuela. Adverse significant effects (P<0.05) of the storage time on the indexes analyzed were found. These were caused by the moisture and impurities of the grains, as well as a deficiency of 704 m3 min-1 of fresh air fed to the silo, which affects storage. The grain of maize stored during 90 day produced increases in the index of acidity, index of peroxide and color of the extracted oil.
Palabras clave : grains of maize; storage of maize; oil quality; index of acidity.