Sea Kwan Oh, Pil Seong Hwang, Choon-Ki Lee, Yeon-Gyu Kim, Woo Duck Seo, Kye Man Cho, Myoung-Gun Choung, Jin Hwan Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A112605
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원문정보
초록
영어
The aim of this study investigated the fluctuations of 3 characters from 3 ecotypes [early ripening (ER), middle ripening (MR), and late ripening (LR)] of 20 Korean brown rice cultivars in different storage systems [time: 12 and 24 weeks, temperature: low (10oC) and room (25oC)]. With increase of storage time and temperature, lipoxygenase activity, and fat acidity increased, whereas germination rate was reduced. ER cultivars exhibited the highest lipoxygenase activity of 35.49±2.46 unit/mg protein during 24 weeks storage at 25oC, followed by LR (32.73±1.33) and MR (32.66±1.62) cultivars. The amounts of fat acidity also were observed by the same order (ER: 20.40±2.12>LR: 19.68±1.86>MR: 19.64±1.35 mg KOH/100 g). Germination rate slightly decreased with increase of time and temperature (MR>LR>ER), but MR and LR cultivars showed the most significant changes (ER: 60.90±23.47%, MR: 32.66±13.95%, and LR: 32.53±5.87%). On the basis of above results, MR cultivars were evaluated the highest quality, because high lipoxygenase activity, high fat acidity, and low germination rate have deteriorated in quality and generated off-odor. Thus, MR cultivars might be very important sources in food processing and stored dietary supplement aspects.
목차
Abstract Introduction Materials and Methods Results and Discussion References
키워드
brown riceecotypelipoxygenase activityfat aciditygermination ratestorage timestorage temperature
저자
Sea Kwan Oh [ National Institute of Crop Science, Rural Development Administration ]
Pil Seong Hwang [ National Institute of Crop Science, Rural Development Administration ]
Choon-Ki Lee [ National Institute of Crop Science, Rural Development Administration ]
Yeon-Gyu Kim [ National Institute of Crop Science, Rural Development Administration ]
Woo Duck Seo [ Department of Functional Crop, National Institute of Crop Science, Rural Development Administration ]
Kye Man Cho [ Department of Food Science, Jinju National University ]
Myoung-Gun Choung [ Department of Herbal Medicine Resource, Kangwon National University ]
Jin Hwan Lee [ Department of Monitoring and Analysis, NAKDONG River Basin Environmental Office, Ministry of Environmet ]
Corresponding Author