Resumo

BENITEZ-BENITEZ, RICARDO; ORTEGA-BONILLA, RUBÉN ANDRÉS  e  MARTIN-FRANCO, JAIME. COMPARISON OF TWO SESAME OIL EXTRACTION METHODS: PERCOLATION AND PRESSED. Rev.Bio.Agro [online]. 2016, vol.14, n.1, pp.10-18. ISSN 1692-3561.  https://doi.org/10.18684/BSAA(14)10-18.

Two oil extraction methods, percolation and pressing, were applied on gold sesame seed (Sesamum Indicum L) and compared. Physicochemical properties and fatty acids profile were analyzed in both extracted oils using standard procedures. Raw seed and cakes from extractions were also analyzed by means of a proximate analysis and a profile of aminoacids. The extraction results were compared by the one-way analysis of variance followed by the Student test. Percolation method produced a higher sesame oil yield (98%) than pressing (94&337;), nonetheless, oil obtained by mechanical press was better from a nutritional point of view showing a higher content of polyunsaturated fatty acids. Peroxides and Kreis index indicated a high oxidative stability. Differences statistically significant were found between the percentages of moisture and fat of cakes, while the composition of aminoacids was similar. Methionine, phenylalanine and tyrosine were the aminoacids most available, and Leucine, Lysine and Tryptophan were the limitants.

Palavras-chave : Sesamum; Sesame oil; Percolation; Pressed.

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