ポーラログラフ法によるでんぷん中のカルボニル基の定量

スポンサーリンク

概要

• 論文の詳細を見る

• Conventional determination methods of carbonyl groups in starches are criticized from the practical point of view. The necessity of new methods and the applicability of polarographic methods are discussed. Inapplicability of polarographic method as a direct method of determination for even glucose, monomer of starch and related carbohydrates, is presented and the possibility of indirect methods converting the carbohydrate to electroactive epecies is emphasized.Indirect methods of determination of carbonyl compounds are reviewed and related to the present determination methods based on the formation of quinoxalines from the reaction of the carbohydrate with o-phenylenediamine (OPD).General polarographic behavior of quinoxalines is reviewed.The polarographic OPD method is presented in detail : condition for the reaction of the carbohydrate with OPD, the formation of 2-methylquinoxaline from the reducing end of all the a-l, 4 glucosides and the extraction of the quinoxaline with nhexane or petrolium ether, the linearity of the total limiting current with the reciprocal polymerization degree under fixed conditions. etc.Application of the methods to the determination of number-average molecular weight of amylose, amylopectin and other related carbohydrates are described and compared with those obtained by other methods.The method is also applicable to the determination of carbonyl groups in periodate oxidized starches.

• 日本ポーラログラフ学会の論文

著者

• 高木 正之助

  大阪府立大学農学部農芸化学教室

• 高木 正之助

  大阪府立大学農学部

関連論文

• アルカリo-フェニレンジアミン法におけるBacillus subtilis FT-3の生産する多糖の挙動 : Bacillus subtilis FT-3の生産する多糖に関する研究 (第5報)
• Bacillus subtilis FT-3の生産する多糖のメチル化法による構造の検討 : Bacillus subtilis FT-3の生産する多糖に関する研究 (第4報)
• ビタミンCの微量定量法へのポーラログラフ o-フェニレンジアミン法の応用
• アスコルビン酸とその酸化物
• 6 ポーラログラフ分析
• ポーラログラフ法によるでんぷん中のカルボニル基の定量
• Determination of the Rate Constants of Homogeneous Reactions in Solution by Using Kinetic Current

スポンサーリンク