ORGANIC NITROGEN-CONTAINING COMPOSITION AND FERTILIZER COMPRISING THEREOF Russian patent published in 2007 - IPC C05F11/08 C12P13/14 C05C11/00 

FIELD: biotechnology, fertilizers.

SUBSTANCE: invention proposes an organic nitrogen-containing composition comprising enzymatic mother solution prepared by culturing microorganism of genus Enterobacter that is able to produce L-glutamic acid in liquid medium. Culturing is carried out at pH value providing precipitation of L-glutamic acid under condition that L-glutamic acid is produced and accumulated with accompanying precipitation and the following separation of L-glutamic acid from medium. Microorganism can metabolize carbon source in liquid medium containing L-glutamic acid in the saturation concentration and carbon source at the definite pH value and possesses capacity to accumulate L-glutamic acid in the amount exceeding the saturating concentration of L-glutamic acid in liquid medium at this pH value. Prepared composition is used as a component of fertilizer. The claimed invention provides expanding assortment of fertilizers.

EFFECT: improved preparing method.

5 cl, 9 dwg, 2 tbl, 1 ex