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Revista de la Sociedad Química del Perú

Print version ISSN 1810-634X


GARCIA, Dora et al. Structured lipids from binary blends of chestnut (Bertholletia excelsa) and sacha inchi (Plukenetia vulubilis L.) oils. Rev. Soc. Quím. Perú [online]. 2013, vol.79, n.4, pp.359-366. ISSN 1810-634X.

It is presented in this study the physical and chemical characteristics of the binary blends of the oil of chestnut and sacha inchi, two native products obtained of species cultivated in the Peruvian Amazon, and whose potential use would be in the line of functional food (omega-3 and omega 6), which are directly associates to the prevention or processing of some illnesses. An experimental design with pure mixtures of oil of chestnut (C-1 was established) and sacha inchi (S-1), and mixtures in proportions of higher to less in chestnut oil in fractions of (C -2/3), (C -1/2) and (C -1/3). The mixtures were submitted to a reaction of intersterification utilizing sodium metoxide, like catalyst and on these; before and after the interesterification they were carried out chemical and physical analysis. The fatty acids were quantified by gas chromatography. It was observed that the insaturated acids at the blends (C -1/3) were of 93.588 to 99.370% and the linolenic acid (ω-3), in the mixtures (C -2/3), (C - 1/2) and (C -1/3), were 28.081, 23.095 and 36.644 and in this same mixtures but intersterified were 24.797, 21.959 and 37.490%, respectively. It was observed a light increment of the melting point of the blends: These were of 4.07 to 6.00ºC before the interestification and 5.07 to 7.00 after of this reaction. The higher variation was in the saponification index, which variation was from 54.31-56.20 mg KOH/g to 155.43 - 163.13 mg KOH/g.

Keywords : interesterification; Bertholletia excelsa; Plukenetia volubilis.

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