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http://dx.doi.org/10.3746/jkfn.2008.37.6.738

Chemical Characteristics of Raspberry and Blackberry Fruits Produced in Korea  

Oh, Hyun-Hee (Sunwoonsan Bokbunja Wine-Heungjin)
Hwang, Keum-Taek (Dept. of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University)
Kim, Mu-Yeol (Division of Biological Sciences, Chonbuk National University)
Lee, Hee-Kwon (Raspberry Experiment Station, Agricultural Technology Service Center)
Kim, Sung-Zoo (Medical School, and Center for Healthcare Technology Development, Chonbuk National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.6, 2008 , pp. 738-743 More about this Journal
Abstract
In this study, 20 kinds of raspberries and blackberries, cultivated or wild in Korea, were collected. Weight, moisture content, sugar content, sugar composition, pH, titratable acidity and acid composition of the fruits were determined. Weight of each of the fruits and moisture contents in the fruits were $0.9{\sim}7.8g$ and $26{\sim}62%$, respectively. The sugar contents in the fruit juices were $6.9{\sim}16.9%$ (Brix). The major sugars in the fruits were glucose ($40.7{\sim}84.0%$ (w/w) of the total sugars) and fructose ($6.5{\sim}57.5%$). Sucrose and xylose were also detected in a small quantity. pH and titratable acidity of the berry juices were $2.8{\sim}3.9%$ (w/v, citric acid) and $0.6{\sim}2.9%$, respectively. The major organic acids were citric acid ($14.6{\sim}87.5%$ (w/w) of the total acids) and malic acid ($9.6{\sim}87.1%$). Succinic, tartaric and oxalic acids were also detected in a small amount.
Keywords
blackberry; raspberry; Rubus; sugar; organic acid;
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Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 2
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