Refining method for D-potassium isoascorbiate

The invention relates to a refining method for D-potassium isoascorbiate, and belongs to the technical fields of preparation and purification of the D-potassium isoascorbiate. The refining method forthe D-potassium isoascorbiate includes the following steps: taking a reaction liquid of the D-potassi...

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Bibliographische Detailangaben
Hauptverfasser:	SHI XIAOLI, CHEN HONGZHAN, CAO XIAOWEI, LI YONGSHENG, ZHANG KANG, GAO LI, ZHANG SHENGKE, GONG SHU, YANG TUO, LIU YINXIA, ZHOU JUNJUN, YAN SHILIANG, QIN TIANCANG, XIAO YUAN, ZHANG JIANGUO, CAO LINQING, SONG YINGYING, LIU SHAN, CUI FENGXIA, GUO JINQUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The invention relates to a refining method for D-potassium isoascorbiate, and belongs to the technical fields of preparation and purification of the D-potassium isoascorbiate. The refining method forthe D-potassium isoascorbiate includes the following steps: taking a reaction liquid of the D-potassium isoascorbiate, performing separation to obtain crude D-potassium isoascorbiate, dissolving the crude D-potassium isoascorbiate, adding a decolorizing agent, performing decolorization, removing the decolorizing agent to obtain a decolorized D-potassium isoascorbiate dissolved solution, after thedecolorizing agent is removed, adding a complexing agent, performing complexing to obtain a complexed D-potassium isoascorbiate dissolved solution, performing crystallization, performing washing and performing drying to obtain the D-potassium isoascorbiate. The refining method for the D-potassium isoascorbiate purifies current D-potassium isoascorbiate synthesized by using calcium 2-keto-D-gluconate obtained by fermentatio