title: Seed Oil from Ten Algerian Peanut Landraces for Edible Use and Biodiesel Production.
abstract: As a result of a recent ad hoc prospection of the Algerian territory, a collection of peanut (groundnut; Arachis hypogaea L.) landraces was established, covering a remarkable array of diversity in terms of morphological and physiological features, as well as of adaptation to local bioclimatic conditions. In the present work, the oils extracted from the seeds of these landraces were evaluated in terms of edible properties and suitability for biodiesel production. As for edible use, a low free acidity (ranging from 0.62 to 1.21%) and a high oleic acid content (44.61-50.94%) were common features, although a poor stability to oxidation [high peroxide values, high spectrophotometric indices, and low % of inhibition in the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH)· test] was observed in a few cases. As for biodiesel production, low values of acidity [1.23-2.40 mg KOH (g oil)(-1)], low iodine values [90.70-101.54 g I2 (g oil)(-1)], high cetane numbers (56.95-58.88) and high calorific values (higher heating value 37.34-39.27 MJ kg(-1)) were measured. Edible properties and suitability for biodiesel production were discussed with respect to the German standard DIN 51605 for rapeseed oil and to the EN 14214 standard, respectively. One way ANOVA and Hierarchical Cluster Analysis showed significant differences among the oils from the Algerian peanut landraces.
authors.affiliation: Dipartimento di AGRARIA. Università degli Studi Mediterranea di Reggio Calabria.
authors.forename: Angelo Maria
authors.initials: AM
authors.lastname: Giuffrè
authors.forename: Sihem
authors.initials: S
authors.lastname: Tellah
authors.forename: Marco
authors.initials: M
authors.lastname: Capocasale
authors.forename: Clotilde
authors.initials: C
authors.lastname: Zappia
authors.forename: Mourad
authors.initials: M
authors.lastname: Latati
authors.forename: Maurizio
authors.initials: M
authors.lastname: Badiani
authors.forename: Sidi Mohamed
authors.initials: SM
authors.lastname: Ounane
mesh_terms: D000462:Algeria; D010367:Arachis / Q000737:chemistry*; D056804:Biofuels; D055598:Chemical Phenomena; D016000:Cluster Analysis; D004042:Dietary Fats, Unsaturated / Q000302:isolation & purification*; D007455:Iodine / Q000032:analysis; D019301:Oleic Acid / Q000032:analysis; D010084:Oxidation-Reduction; D000074241:Peanut Oil; D010938:Plant Oils / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry
chemical_list: D056804:Biofuels; D004042:Dietary Fats, Unsaturated; D000074241:Peanut Oil; D010938:Plant Oils; D019301:Oleic Acid; D007455:Iodine