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Characteristics and Screening of Antioxidative Activity for the Fruit by Rubus coreanus Miq. Clones  

Kim, Sea Hyun (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Chung, Hun Gwan (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Jang, Yong Seok (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Park, Young Ki (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Park, Hyung Soon (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Kim, Sun Chang (Dept. of Forest Genetic Pesources, Korea Forest Research Institute)
Publication Information
Journal of Korean Society of Forest Science / v.94, no.1, 2005 , pp. 11-15 More about this Journal
Abstract
Fruit characteristics, saccharinity, and antioxidative activity of selected clones of Rubus coreanus, grown in Korea, well-known as edible and medical resources, frequently used and which has an excellent pharmacological activity are examined and analyzed. The results obtained from this study can be summarized as follows; Result of surveying characteristics for the fruit and saccharinity variation by collection time, there are some meaningful differences between examined clones and the collection time, exception of the fruit width. From the clones, SG 3 is the biggest in size, the highest in the saccharinity out of five clones, on the other hand, CJ 18 and SH 3 are the opposite. Meanwhile, comparing examined saccharinity factor with maximum temperature and precipitation out of daily climates at Suwon Meteorological Observatory at the same period, on the day the highest temperature is $29.5^{\circ}C$, saccharinity distinctively ascends, but on the day the precipitation is recorded 121.5 mm and next day, the saccharinity descends. Also, five-day saccharinity until the precipitation lower than 0.1 mm per day shows from 10.4 to 11.5 Brix higher than the average saccharinity of 9.7 Brix. Fifteen clones including CA 6 about fruit characteristics in terms of collection layer and saccharinity variation were examined, there is significantly difference among examined clones, but about the collection layer, only saccharinity factor has meaningful significance. For clones, MJ 11 is the biggest and excellent character of 15 clones but the saccharinity, 10.3 Brix lows a bit, MC 9 and HAE 5 are the worst fruit in character but saccharinity is 13.4 Brix and 10.6 Brix which is higher than the average saccharinity of 9.8 Brix. About saccharinity for the collection layer, the fruit average saccharinity, collected from the upper layer which is good at lightness and temperature condition, is 10.2 Brix which shows higher than the one of the fruit, 9.7 Bix and 9.5 Brix collected from the middle or the lower layer. The saccharinity of fruit collected from the middle or the lower layer is lower than the average saccharinity of 9.8 Brix out of 15 surveyed clones. Surveying antioxidative activity resulted from free radical scavenging activity about 30 clones of fruit in total, there is difference between surveyed clones. Especially, Immatured fruit extracts exhibited higher free radical scavenging activity of 94.5 to 97.5% which indicates the similarity to Ascorbic acid, unlike other clones, on the concentration of 250 to 1,000 ppm.
Keywords
Rubus coreanus; DPPH free radical scavenging; saccharinity; antioxidative activity; fruit characteristics;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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