title: Chemical and sensory analysis of strawberry flavoured yogurt supplemented with an algae oil emulsion.
abstract: A yogurt mix (2 g fat and 17g solids/100 g) was supplemented with an algae oil emulsion to provide 500 mg omega-3 fatty acids per 272 g serving of yogurt white mass. The emulsion was added to the yogurt mix either before or after the homogenization step and prior to pasteurization. It was then flavoured with a strawberry fruit base and fermented and stored for up to three weeks. The oxidative deterioration of the products was determined by hydroperoxide measurements and by trained and consumer sensory evaluations. The hydroperoxide content of the supplemented yogurts increased over the storage treatment and was unaffected by the stage of addition. The trained panel could distinguish a stronger fishy flavour in both of the supplemented yogurts after 22 days storage, but the consumer panel rated both control and supplemented samples similarly, as 'moderately liked'.
authors.affiliation: Department of Food Science, The Pennsylvania State University, USA.
authors.forename: Celia P
authors.initials: CP
authors.lastname: Chee
authors.forename: Jason J
authors.initials: JJ
authors.lastname: Gallaher
authors.forename: Darinka
authors.initials: D
authors.lastname: Djordjevic
authors.forename: Habibollah
authors.initials: H
authors.lastname: Faraji
authors.forename: D Julian
authors.initials: DJ
authors.lastname: McClements
authors.forename: Eric A
authors.initials: EA
authors.lastname: Decker
authors.forename: Ruth
authors.initials: R
authors.lastname: Hollender
authors.forename: Devin G
authors.initials: DG
authors.lastname: Peterson
authors.forename: Robert F
authors.initials: RF
authors.lastname: Roberts
authors.forename: John N
authors.initials: JN
authors.lastname: Coupland
mesh_terms: D004655:Emulsions / Q000008:administration & dosage*; D056890:Eukaryota / Q000737:chemistry*; D005421:Flavoring Agents; D005519:Food Preservation; D031985:Fragaria; D006801:Humans; D006861:Hydrogen Peroxide / Q000032:analysis; D009821:Oils / Q000008:administration & dosage*; D010084:Oxidation-Reduction; D012677:Sensation; D013649:Taste; D015014:Yogurt / Q000032:analysis*
chemical_list: D004655:Emulsions; D005421:Flavoring Agents; D009821:Oils; D006861:Hydrogen Peroxide