Abstract
The study aimed at assessing effects of freeze-dried Japanese quince fruit (FJQF; 0–9%) added to cookies to improve their antioxidant attributes during storage, sensory and volatile characteristics and acceptability by consumers. Cookies containing FJQF had 2-3.5-fold higher radical scavenging activity and exhibited less secondary lipid oxidation products compared with the control cookies. Enriched cookies had higher contents of volatile hexanal, heptanal, octanal, 2-heptenal, (E) than control cookies. Acetic acid dominated in the volatile profile of enriched cookies (ranging 7.05–23.37%), hence intensities of acidic and citrus aroma were scored high. Cookies stored for 16-weeks showed increased amounts of hydrocarbons as compared with fresh cookies and new hydrocarbons were also generated, which were not detected in fresh cookies. The consumer panel indicated a higher preference for cookies containing 1.0 and 1.5% FJQF than those containing 6.0 and 9.0%.
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