Effects of Light Treatment on Isoflavone Content of Germinated Soybean Seeds

详细信息    查看全文

• 作者：Siviengkhek Phommalth ; Yeon-Shin Jeong ; Yong-Hoon Kim ; Krishna Hari Dhakal ; Young-Hyun Hwang
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2008
• 出版时间：November 12, 2008
• 年：2008
• 卷：56
• 期：21
• 页码：10123-10128
• 全文大小：194K
• 年卷期：v.56,no.21(November 12, 2008)
• ISSN：1520-5118

文摘

Our research objective was to increase isoflavone content in the germinated soybean seeds of four different varieties (Pungsannamulkong, Cheongjakong, Aga4, and Aga3) by optimizing light treatments (dark, greenhouse, fluorescent, incandescent, and ultraviolet lamps). The results demonstrated that the highest isoflavone content was produced from the Aga3 variety, which was developed by an interspecific cross between Eunhakong (Glycine max) and KLG10084 (G. soja) at the Plant Genetic Laboratory, Kyunpook National University. Aga3 is known to have one of the highest isoflavone content in the world at present. Our results recommend exposure of 7-day-old Aga3 sprouts to a combined light treatment of greenhouse lamps (12 h per day) and ultraviolet light (40 min per day) for maximum isoflavone production. Aga3 produced high levels of isoflavone because, in part, it contained very high isoflavone levels within the seed as compared with the other varieties. Under stress conditions, Aga3 could produce over 1.90 times more isoflavone than its seed content and 1.53 times more isoflavone than when grown under dark conditions.