Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/4987
Title: Influence of the extraction method and storage time on the physicochemical properties and carotenoid levels of pequi (Caryocar brasiliense Camb.) oil
Other Titles: Influência do método de extração e do tempo de armazenamento sobre as propriedades físico-químicas e o teor de carotenóides do óleo de pequi (Caryocar brasiliense Camb.)
Keywords: Caryocar brasiliense
β-carotene
Vegetal oil
Issue Date: 4-Jan-2012
Publisher: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Citation: RIBEIRO, M. C. et al. Influence of the extraction method and storage time on the physicochemical properties and carotenoid levels of pequi (Caryocar brasiliense Camb.) oil. Ciência e Tecnologia de Alimentos, Campinas, v. 32, n. 2, p. 386-392, Apr./Jun. 2012.
Abstract: The objective of this study was to analyze the physicochemical properties and carotenoid levels of pequi oil obtained by different extraction methods and to evaluate the preservation of these properties and pigments during storage time. The pequi oil was obtained by solvent extraction, mechanical extraction, and hot water flotation. It was stored for over 180 days in an amber bottle at ambient conditions. Analyses for the determination of the acidity, peroxide, saponification and iodine values, coloration, total carotenoids, and β-carotene levels were conducted. The oil extraction with solvents produced the best yield and carotenoid levels. The oil obtained by mechanical extraction presented higher acidity (5.44 mg KOH.g –1 ) and peroxide values (1.07 mEq.kg –1 ). During the storage of pequi oil, there was an increase in the acidity and the peroxide values, darkening of the oil coloration, and a reduction of the carotenoid levels. Mechanical extraction is the less advantageous method for the conservation of the physicochemical properties and carotenoid levels in pequi oil.
URI: http://repositorio.ufla.br/jspui/handle/1/4987
Appears in Collections:DCA - Artigos publicados em periódicos



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