title: Simultaneous extraction of oil and antioxidant compounds from oil palm fruit (Elaeis guineensis) by an aqueous enzymatic process.
abstract: Oil palm (Elaeis guineensis) fruit was treated with enzymes to facilitate simultaneous recovery of oil and bioactive compounds. Tannase from Paecilomyces variotii, cellulase and pectinase were evaluated for their influence on oil recovery and antioxidant capacity (DPPH), oxidative stability (Rancimat), fatty acid profile, total phenols, total carotenoids and tocols of the oil. Maximum oil recovery (90-93% total oil) was obtained with central composite design using 4% of enzyme preparation (w/w) as 80 U of tannase, 240 U of cellulase and 178 U of pectinase, pH 4, ratio of solution to pulp of 2:1 and 30 min of incubation at 50 °C. Tannase improved the phenolic compounds extraction by 51% and pectinase plus cellulase improved carotene extraction by 153%. Samples treated with tannase showed a 27% and 53% higher antioxidant capacity for the lipophilic and hydrophilic fractions.
authors.affiliation: Faculty of Food Engineering, Technology Institute, Federal University of Para, UFPA, Augusto Corrêa Street, Guamá, CEP 66075-900 Belém, PA, Brazil. camilobt@hotmail.com
authors.forename: Camilo B
authors.initials: CB
authors.lastname: Teixeira
authors.forename: Gabriela A
authors.initials: GA
authors.lastname: Macedo
authors.forename: Juliana A
authors.initials: JA
authors.lastname: Macedo
authors.forename: Luiza Helena M
authors.initials: LH
authors.lastname: da Silva
authors.forename: Antonio Manoel
authors.initials: AM
authors.lastname: da C Rodrigues
mesh_terms: D000975:Antioxidants / Q000302:isolation & purification*; D029064:Araceae / Q000737:chemistry*; D002265:Carboxylic Ester Hydrolases / Q000737:chemistry*; D044602:Cellulases / Q000737:chemistry*; D045424:Complex Mixtures / Q000737:chemistry / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry*; D000073878:Palm Oil; D010938:Plant Oils / Q000302:isolation & purification*; D011096:Polygalacturonase / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000975:Antioxidants; D045424:Complex Mixtures; D010938:Plant Oils; D014867:Water; D000073878:Palm Oil; D002265:Carboxylic Ester Hydrolases; C022711:tannase; D044602:Cellulases; D011096:Polygalacturonase