Process development of oxalic acid production in submerged culture of Aspergillus niger F22 and its biocontrol efficacy against the root-knot nematode Meloidogyne incognita. - Lee SI; Lee KJ; Chun HH; Ha S; Gwak HJ; Kim HM; Lee JH; Choi HJ; Kim HH; Shin TS; Park HW; Kim JC (Bioprocess and biosystems engineering, 2018)