Korean Journal of Food Science and Technology (한국식품과학회지)
- Volume 27 Issue 6
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- Pages.902-908
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- 1995
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- 0367-6293(pISSN)
Effect of Storage Conditions on the Oxidative Stability of Lipid in Roasted and Roasted-Seasoned Laver(Porphyra tenera)
배소김과 조미김의 지방질 산화 안정성에 대한 저장 조건의 영향
- Jo, Kil-Suk (Korea Food Research Institute) ;
- Kim, Jun-Hwan (Department of Food Science & Technology, Dongguk University) ;
- Shin, Hyo-Sun (Department of Food Science & Technology, Dongguk University)
- Published : 1995.12.31
Abstract
Oxidative factors of lipid in the roasted laver Porphyra tenera(RL) and roasted-seasoned laver(R-SL) depending on various light sources, water activities, packaging materials and storage temperatures were investigated by peroxide value and color. Major fatty acids of RL were 46.4% eicosapentaenoic acid and 14.9% palmitic acid. Lipid oxidation was decreased in order of darkness, incandescent and fluorescent, decreased sharply with the decrease of water activity and temperature, and also reduced by the packaging material with strong barriers of water vapor, oxygen and light. From kinetics of lipid oxidation, it was supposed that oxidation of R-SL was three times faster than RL. On the other hand, reduction of the total chlorophyll content in RL was stronger than R-SL.
배소김과 조미김의 저장중 지방질 산화의 변질요인을 조사하기 위하여 몇가지 광원,