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Manipulating Isoflavone Levels in Mungbean Sprouts by Chemical Treatment  

Lee Ji-Hyun (Konkuk University)
Chung Il-Min (Konkuk University)
Park Sei-Joon (National Crop Science Institute)
Kim Wook Han (National Crop Science Institute)
Kim So-Yeun (Konkuk University)
Kim Jin-Ae (Konkuk University)
Jung Soosuk (Konkuk University)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.49, no.6, 2004 , pp. 528-532 More about this Journal
Abstract
We have studied physiological responses of mung bean sprout to the treatment of elicitors. Chemicals such as salicylic acid and methyl jasmonic acid are not only the intermediates found in plant defense system but also could affect plant secondary metabolism. We found that mild treatment of salicylic acid and acetyl salicylic acid (aspirin) increase isoflavone production dramatically in mung bean sprout which has very low level of isoflavones compared with soybean sprout. The isoflavone content in salicylic acid treated- and acetyl salicylic acid treated-mung bean sprout was about 2.3 and 2.2 times higher than that of control, respectively. However, the increasing patterns of isoflavone in cotyledon and hypocotyl and root were not identical. The major increase among isoflavone fractions in cotyledon was led by the increase in malonylglycitin and malonyldaidzin level. Whereas, the increase in hypocotyl and root was led by malonyldaidzin. Methyl jasmonic acid did not show statistically significant increase in mung bean sprout. With this result, we were able to propose the non-transgenic method, which can control the isoflavone production in germinating mung bean.
Keywords
isoflavones; salicylic acid; methyl jasmonic acid; acetyl salicylic acid; secondary metabolism; Phaseolus radiatus;
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Times Cited By KSCI : 3  (Citation Analysis)
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