Chemical and sensory analysis of strawberry flavoured yogurt supplemented with an algae oil emulsion

Celia P. Chee, Jason J. Gallaher, Darinka Djordjevic, Habibollah Faraji, D. Julian McClements, Eric A. Decker, Ruth Hollender, Devin G. Peterson, Robert F. Roberts, John N. Coupland

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

A yogurt mix (2 g fat and 17 g solids/100 g) was supplemented with an algae oil emulsion to provide 500 mg ω-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'.

Original languageEnglish (US)
Pages (from-to)311-316
Number of pages6
JournalJournal of Dairy Research
Volume72
Issue number3
DOIs
StatePublished - Aug 1 2005

Keywords

  • Dairy
  • Emulsion
  • Oxidation
  • Yogurt
  • ω-3 oils

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