Influence of the application of three different elicitors on soybean plants on the concentrations of several isoflavones in soybean seeds
文献类型: 外文期刊
作者: Zhang, Bo 1 ; Hettiarachchy, Navam 2 ; Chen, Pengyin 2 ; Horax, Ronny 2 ; Cornelious, Brian 2 ; Zhu, Danhua 3 ;
作者机构: 1.Univ Arkansas, Dept Crop & Soil Environm Sci, Fayetteville, AR 72701 USA
2.Univ Arkansas, Dept Crop & Soil Environm Sci, Fayetteville, AR 72701 USA; Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA; Zhejiang Acad Agr Sci, Inst Crop Sci, Hangzhou 310021, Zhejiang, Peoples R China
3.Univ Arkansas, Dept Crop & Soil Environm Sci, Fayetteville, AR 72701 USA; Univ Arkansas, Dept
关键词: isoflavones;soybean;solvent;elicitor;HPLC;GLYCINE-MAX;FOLIAR APPLICATION;SOY FOODS;EXTRACTION;BIOSYNTHESIS
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
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收录情况: SCI
摘要: Soybean [Glycine max (L.) Merr.] is a rich source of isoflavones that are often affected by biotic and abiotic factors. The objectives of this study were to evaluate the effect of various concentrations of three natural elicitors applied at different soybean growth stages on isoflavone content and to compare the efficiency of several solvent systems in isoflavone extraction and quantification. The isoflavones extracted from R96-3444 soybean using eight solvent systems were separated, identified, and quantified by a high-performance liquid chromatography (HPLC) procedure. The soybean plants were sprayed with salicylic acid, methyl salicylate, or ethyl acetate at 0, 10(-6), 10(-3), and 10(-1) M at R1 (blooming) or R4 (full pods) growth stage. Results showed that 10(-3) M ethyl acetate sprayed at the R1 stage significantly increased total isoflavone content and the levels of some individual isoflavones in soybean seeds. With all the elicitors that were tested, concentration was a more important factor than application time with respect to isoflavone content with lower concentrations being more effective on most isoflavones. A 53% acetonitrile solvent system was the best solvent system for extracting total isoflavone, malonyl glucosides, genistein, glycitin, genistin, acetyl-daidzin, and acetyl-genistin. The results of this study will be useful for increasing the isoflavone content in desirable soybean varieties and improving isoflavone concentration during extraction.
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