Method for preparing gamma-polyglutamic acid organic fertilizer by double microbial fermentation

The invention relates to a method for preparing a gamma-polyglutamic acid organic fertilizer by double microbial fermentation. The method comprises the following steps: firstly, corynebacterium glutamicum is used to ferment a solid organic matter to produce an organic material rich in L-glutamic aci...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ZHONG WEILEI, YU NANSHU, XU WENFENG, XU CHUNYING, CHEN HAINING
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT FERTILISERS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MANUFACTURE THEREOF METALLURGY ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a method for preparing a gamma-polyglutamic acid organic fertilizer by double microbial fermentation. The method comprises the following steps: firstly, corynebacterium glutamicum is used to ferment a solid organic matter to produce an organic material rich in L-glutamic acid; and then, bacillus subtilis is used to continuously ferment the organic material containing L-glutamic acid to produce an organic fertilizer containing gamma-polyglutamic acid. Through field experiments, the fertilizer has achieved a good crop yield-increasing effect. According to the method, direct addition of pure polyglutamic acid is avoided, the purification process is eliminated, and fertilizer cost is decreased.