title: Physicochemical characterization, fatty acid composition, and thermal analysis of Bertholletia excelsa HBK oil.
abstract: The present study aimed at characterizing the oil extracted from Bertholletia excelsa H.B.K. almond, a native species from the Amazon region. Analytical methods used for oils and fats were employed through pharmacopoeia assays, AOCS (American Oil Chemists Society) standard methods as well as those recommended by ANVISA (National Health Surveillance Agency) such as acidity, peroxide value, saponification index, iodine value and refractive index, pH and relative density, and also thermoanalytical analyses (thermogravimetry, differential thermogravimetry and differential thermal analysis) as well as chromatographic analysis (gas chromatography). The characterization assessments of B. excelsa oil showed results indicating that the oil contains polyunsaturated fatty acids in large proportion. The termoanalytical tests indicated that B.excelsa oil showed thermal stability up to 220 °C, These results showed that the oil extracted from B. excelsa has acceptable characteristics and is of good quality.
authors.affiliation: Laboratory of P and D Pharmaceutical and Cosmetic, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: Marcos Antônio
authors.initials: MA
authors.lastname: Pena Muniz
authors.affiliation: Laboratory of P and D Pharmaceutical and Cosmetic, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: Marina Nídia
authors.initials: MN
authors.lastname: Ferreira Dos Santos
authors.affiliation: Laboratory of Quality Control, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: Carlos Emmerson Ferreira
authors.initials: CE
authors.lastname: da Costa
authors.affiliation: Laboratory of Catalysis and Petrochemistry, Collegy of Chemistry, Federal University of Pará - Brazil ; Amazon Oil Industry, Pará-Brazil.
authors.forename: Luiz
authors.initials: L
authors.lastname: Morais
authors.affiliation: Laboratory of P and D Pharmaceutical and Cosmetic, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: Maria Louze Nobre
authors.initials: ML
authors.lastname: Lamarão
authors.affiliation: Laboratory of P and D Pharmaceutical and Cosmetic, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: Roseane Maria
authors.initials: RM
authors.lastname: Ribeiro-Costa
authors.affiliation: Laboratory of P and D Pharmaceutical and Cosmetic, College of Pharmacy, Federal University of Pará - Brazil.
authors.forename: José Otávio Carréra
authors.initials: JO
authors.lastname: Silva-Júnior
keywords: Brazil nut oil; oxidative stability; quality control