Relationship between Crystallization Temperature and Crystal Shape of Monoammonium Glycyrrhizinate (MG)

DOI IR Web Site 6 References
  • Kanenaga Hiroki
    Department of Chemical Engineering, Faculty of Engineering, Iwate University
  • Ogawa Kaoru
    Advanced Science and Technology Institute, Iwate Industrial Promotion Center
  • Li Lixin
    Department of Chemical Engineering, Faculty of Engineering, Iwate University
  • Mitobe Yuko
    Department of Chemical Engineering, Faculty of Engineering, Iwate University
  • Suzuki Eiichi
    Department of Chemical Engineering, Faculty of Engineering, Iwate University
  • Guzman Luis A.
    Department of Chemical Engineering, Faculty of Engineering, Iwate University
  • Shimizu Kenji
    Department of Chemical Engineering, Faculty of Engineering, Iwate University

Bibliographic Information

Other Title
  • グリチルリチン酸モノアンモニウム(MG)の結晶化温度と結晶形状の関係
  • グリチルリチンサン モノアンモニウム MG ノ ケッショウカ オンド ト ケッショウ ケイジョウ ノ カンケイ

Search this article

Abstract

Studies of the deposit concentration and crystal shape of Monoammonium Glycyrrhizinate (MG) were made. For the purpose of observation of basic data for batch crystallization experiment, the deposit concentration was measured at different mixtures (75-25, 80-20 and 85-15) vol % of ethanol-water. To obtain the relation between MG purity, AT (difference of the temperature of a fixed deposit concentration solution and crystallization temperature) and crystal shape, the shape of produced crystals was observed at different MG purity and different ΔT (ΔT=1, 5, 10, 20, 30 and 40℃) by a controlled batch crystallization. In the case of MG purity 68.8 wt %, rectangle crystal shape was observed. In the case of MG purity 50 wt %, the crystal shape changed from rectangle to octagon and hexagon-like. In the case of MG purity 35.2 wt %, lozenge crystal shape was observed. It was found that the degree of purity and ΔT influenced markedly the shape of produced crystals.

Journal

References(6)*help

See more

Details 詳細情報について

Report a problem

Back to top