Grasas y Aceites, Vol 48, No 4 (1997)

Fatty acid, sterol and proximate compositions of peanut species (Arachis L.) seeds from Bolivia and Argentina


https://doi.org/10.3989/gya.1997.v48.i4.792

Nelson R. Grosso
Cátedra de Química Biológica, Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba (ICTA, CONICET), Argentina

Julio A. Zygadlo
Instituto de Ciencias y Tecnología de los Alimentos (ICTA), FCEFyN-UNC, IMBIV-CONICET, Argentina

Laura V. Burroni
Instituto de Ciencias y Tecnología de los Alimentos (ICTA), FCEFyN-UNC, IMBIV-CONICET, Argentina

Carlos A. Guzmán
Instituto de Ciencias y Tecnología de los Alimentos (ICTA), FCEFyN-UNC, IMBIV-CONICET, Argentina

Abstract


The oil, protein, ash and carbohydrates contents, iodine value, fatty acid and sterol compositions were studied in seeds of Arachis correntina, A. durannensis, A. monticola, A. batizocoi, and A. cardenasii originating from Bolivia and Argentina. Oil content was greatest in A. batizocoi (mean value 53,35%). The protein level was higher in A. monticola (mean value 29,40%) and A. durannensis (29,13%). Mean value of oleic acid varied between 34,91% (A. durannensis and A. cardenasii) and 42,60% (Arachis correntina), and linoleic acid oscilated between 40,23% (A. correntina) and 45,86% (A. durannensis). The better oleic to linoleic ratio was exhibited by A. correntina (1,06). Iodine value was lower in A. batizocoi (106,0). The sterol composition in the different peanut species showed higher concentration of β-sitosterol (mean values oscilated between 55,70-58,70%) following by campesterol (15,18-16,47%), stigmasterol (10,67- 12,27%) and Δ5-avenasterol (10,80-12,13%).

Keywords


Arachis L; Argentine; Bolivia; Fatty acid; Peanut; Sterol.

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