Change of antioxidant activity and quality characteristics of Gaeseong-Juak prepared with Prunus yedoensis Matsumura extract during the storage period
- Authors
- Joo S.Y.
- Issue Date
- Jul-2013
- Publisher
- Korean Society of Food Science and Nutrition
- Keywords
- Antioxidative activity; Gaeseong-Juak; Oxidative stability; p-anisidine value; Prunus yedoensis Matsumura
- Citation
- Journal of the Korean Society of Food Science and Nutrition, v.42, no.7, pp 1086 - 1095
- Pages
- 10
- Journal Title
- Journal of the Korean Society of Food Science and Nutrition
- Volume
- 42
- Number
- 7
- Start Page
- 1086
- End Page
- 1095
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/11778
- DOI
- 10.3746/jkfn.2013.42.7.1086
- ISSN
- 1226-3311
2288-5978
- Abstract
- This study investigated the quality characteristics, oxidative stability, and antioxidative activity of a Korean fried rice cake, Gaeseong-Juak (doughnut of waxy rice) to which Prunus yedoensis Matsumura (PYM) extract, vitamin C, and BHT were added and stored at 60°C for 4 days. Gaeseong-Juak was prepared by adding PYM extract at 0, 0.5, 1, and 2% of waxy rice powder. It was found that as the content of PYM extract increased, L-values significantly decreased while a-value and b-value significantly increased (P<0.001). The hardness and adhesiveness were increased with an increase in PYM extract, and as the storage period increased. In the sensory evaluations, the sample containing 0.5% and 1.0% PYM extract gave good scores. In the Gaeseong-Juak with PYM extract, the acid value, peroxide value, and p-anisidin value of PYM extract groups were found to have a higher oxidative stability than those of 0% PYM extract group (P<0.05). The antioxidative activity of Gaeseong-Juak to which PYM extract was added increased as the content of PYM extract increased (P<0.001). It was suggested that the shelf life of Gaeseong-Juak could be extended by the use of natural antioxidants, reducing the deterioration of the quality of Gaeseong-Juak. © 2013 by The Korean Society of Food Science and Nutrition. All rights reserved.
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