Studies on the Extraction of Alkaloids from Cacao Refuse and Green Tea by Liquid Ammonia

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概要

• 論文の詳細を見る

• The solubilities of theobromine and caffeine in liquid ammonia at 0° and 20℃ were measured. On the extraction of theobromine and caffeine from cacao refuse and green tea with liquid ammonia, it was found that the intimate witing of the sample with an alkaline earth metal oxide or hydroxide prevented the extraction of some of the interfering substances (mainly tannins) and was of great advantage to the extraction. The extracting manipulation and the yields of the alkaloid were improved by the new method. The separation and purification of the two alkaloids were also made easy.

• 東北大学の論文

著者

• Matsuki Yasuo

  The Chemical Research Institute Of Non-aqueous Solutions

• ITAI Ichiro

  The Chemical Research Institute of Non-Aqueous Solutions

• Matsuki Yasuo

  The Chemical Institute of Non-Aqueous Solution Tohoku University

関連論文

• Refining of Light Kerosene Fraction with Liquid Ammonia
• The Autoxidation of Hydrocarbons in Liquid Phase
• Studies on the Extraction of Alkaloids from Cacao Refuse and Green Tea by Liquid Ammonia
• Proton Magnetic Resonance Spectra of Methylthiophenesulfonylchlorides

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