Physico-chemical properties, fatty acid and tocopherol composition of oils from some Sudanese oil bearing sources | Propiedades fisicoquímicas, ácidos grasos y tocoferoles de aceites obtenidos de plantas y semillas de Sudán

espagnol; castillan. Se analizan siete aceites procedentes de plantas y semillas de Sudán: Albizia lebbek Oil (ALO), Cassia obtusifolia Oil (COO), Cassia occidentalis Oil (CCO), Abutilon pannosum Oil (APO), Mitracarpus villous Oil (MVO), Ipomea indica Oil (IIO) y Sesamum alatum Oil (SAO). Las semillas se recolectaron en el estado de Ghibaish, Kordofan del Norte. Además del contenido en aceite (12,8; 7,0; 3,2; 7,1; 11,5; 8,8 y 21,3%, respectivamente), se determinaron los ácidos grasos mediante cromatografía de gases y los tocoferoles mediante HPLC. Los aceites contenían, respectivamente, 16,4; 20,0; 14,3; 16,8; 19,4; 19,9 y 10,9% de ácido palmítico, 21,0; 24,4; 22,1; 10,9; 27,7; 34,0; 45,1% de ácido oleico, 43,8; 38,2; 45,0; 63,9; 34,6; 33,5 y 36,3% de ácido linoléico y trazas de ácido linolenico. El contenido en tocoferol total fue de 85,6; 48,2; 32,7; 163,5; 52,5; 30,9 y 26,4 mg/100 g aceite, respectivamente. Alfa-tocoferol fue el predominante en los aceites de Albizia lebbek, Cassia obtusifolia, Cassia occidentalis y Abutilon pannosum, mientras Gamma-tocoferol fue el mayoritario en los aceites de Mitracarpus villous, Ipomea indica y Sesamum alatum.

anglais. Seven oils, obtained from seven Sudanese oil bearing sources that are Albizia lebbek Oil (ALO), Cassia obtusifolia Oil (COO), Cassia occidentalis Oil (CCO), Abutilon pannosum Oil (APO), Mitracarpus villous Oil (MVO), Ipomea indica Oil (IIO) and Sesamum alatum Oil (SAO), were investigated. The seeds were collected in Sudan from Ghibaish, North Kordofan state. In addition to the oil content, the fatty acid was determined by capillary gas chromatography and the tocopherols were evaluated by highperformance liquid chromatography. The oil content of the seven seeds amounted to 12.8, 7.0, 3.2, 7.1, 11.5, 8.8, and 21.3%, respectively. The oils contained 16.4, 20.0, 14.3, 16.8, 19.4, 19.9 and 10.9% palmitic acid and 21.0, 24.4, 22.1, 10.9, 27.7, 34.0, 45.1% oleic acid, and 43.8, 38.2, 45.0, 63.9, 34.6, 33.5, 36.3% linoleic acid and traces of linolenic acid, respectively. The tocopherol content of these oils amounted to 85.6, 48.2, 32.7, 163.5, 52.5, 30.9, and 26.4 mg/100 g oil, respectively. Alpha-tocopherol was the predominant tocopherol in the oil of Albizia lebbek, Cassia obtusifolia), Cassia occidentalis, and Abutilon pannosum, while Gamma-tocopherol was the predominant tocopherol in the oil of Mitracarpus villous, Ipomea indica and Sesamum alatum.