穀類蛋白質のゲル・クロマトグラフィー

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  • 穀類蛋白質のゲル・クロマトグラフィー(B. 生活科学)
  • コクルイ タンパクシツ ノ ゲル クロマトグラフィー
  • The Gel-Chromatography of Cereal Proteins (B. LIVING SCIENCE)

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Abstract

The proteins of foxtail and proso millets were extracted successively with water, 1M sodium chloride, 70% ethanol, 0.1 N acetic acid and 0.05N sodium hydroxide. The fractions obtained from the extracts were analyzed for their amino acid compositions and their elution proliles of gel-chromatography on a Sephadex G-100 column. Amino acid analyses indicated that all of the fractions from both millets had high glutamic acid and low lysine contents. It was also recognized that the corresponding fracions between both millets, especially the alcohol-soluble fractions had a similar amino acid composition. In the gel-chromatography, the similarity of the elution profiles was observed between both alcohol-soluble fractions. These findings suggest that the alcohol-soluble proteins of foxtail and proso millets consist of analogous polypeptides.

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