Resumen

LANZA, JOSÉ GREGORIO; CHURION, PEDRO CÉSAR  y  GOMEZ, NÉSTOR. Comparison between Kjeldahl traditional method and automated Dumas ( N cube ) method for determination of proteins in several kinds of food. Saber [online]. 2016, vol.28, n.2, pp.245-249. ISSN 2343-6468.

Kjeldahl and Dumas methods are applied in the Laboratory of physicochemical analysis of the Venezuelan National Institute of Nutrition. A comparative study was made for both methods to determine the existence of statistically significant differences between their results. Twenty four (24) different food samples were analyzed by both techniques, showing that there were no significant differences between reports from both tests ( α = 0.05). Since analyses of proteins in food laboratories are routinely made, the use of Dumas method is recommend as an alternative for con ducting this essay, being reliable, fast and safe for both the operator and the environment.

Palabras clave : Nitrógeno; combustión; Nitrogen; combustion.