TY - JOUR PY - 1989// TI - Chemical composition and biological quality of defatted hazelnut flour JO - Archivos Latinoamericanos de Nutrición A1 - Villarroel, M. A1 - Biolley, E. A1 - Schneeberger, R. A1 - Ballester, D. A1 - Santibáñez, S. SP - 200 EP - 211 VL - 39 IS - 2 N2 - The results of the chemical composition and biological quality of deffated hazel nut flour are shown. The samples analyzed contained significant amounts of proteins (19%) comparable to legume flour, higher than cereals and lower than deffated oleaginous flours. The oil extracted from the seed was analyzed and the average results obtained were the following: Refraction index, 1.47; saponification No. 184.8; iodine No. 85.0. The average composition of the fatty acids obtained by gas liquid chromatography was: Palmitic acid 2.3% Palmitoleic acid 37.0% Stearic acid 0.5% Oleic acid 39.5% Linoleic acid 6.9% Linolenic acid 1.1% Eicosanoic acid 2.3% Eicosaenoic acid 4.6% Docosenoic acid 3.4% Tetraeicosanoic acid 0.3% These results indicate a good-quality oil due to the low content of linolenic acid. The nutritive value of the deffated meal measured in the rats gave a net protein ratio (NPR) of 3.58, lower than the corresponding casein value (4.10). The true protein digestibility measured in the rat gave a value of 7.3%, compared to 95% for casein. The amounts of iron and phosphorous are comparatively lower than those reported for rape-seed meal and sunflower meal.

Language: es

LA - es SN - 0004-0622 UR - http://dx.doi.org/ ID - ref1 ER -