An Ecochemical in Kidney Beans Which Inhibits Larval Growth of the Azuki Bean Weevil

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  • SMITANOND Bongotrat
    Department of Agricultural Chemistry, Tokyo University of Agriculture
  • TANAKA Kaoru
    Department of Agricultural Chemistry, Tokyo University of Agriculture
  • HONDA Hiroshi
    Department of Agricultural Chemistry, Tokyo University of Agriculture
  • YAMAMOTO Izuru
    Department of Agricultural Chemistry, Tokyo University of Agriculture

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Other Title
  • インゲンマメ種子に含まれ, 食入アズキゾウムシ幼虫の生育を阻害する生態活性物質
  • インゲンマメ種子に含まれ,食入アズキゾウムシ幼虫の生育を阻害する生態活性物質〔英文〕
  • インゲンマメ シュシ ニ フクマレ クイイ アズキゾウムシ ヨウチュウ ノ セ

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Abstract

The Bruchid beetles, C. chinensis L. and C. maculatus F. grew in many kinds of beans, but not in kidney beans, Phaseolus vulgaris L. Extraction from kidney beans, chromatography and electrophoresis of the extract combined with bioassay for larval growth inhibition of C. chinensis using artificial beans resulted in the isolation of a growth inhibitor, a glycoprotein, whose molecular weight was ca. 48, 000 and isoelectric point, 4.46. The inhibitor was present at a level of 0.6% in kidney beans, and showed α-amylase-inhibitory activity, but it was not a trypsin inhibitor.

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