Growth of Rhizobium leguminosarum in a periodic pressure oscillating, solid-state fermentation of wheat straw

Abstract

Wheat straw impregnated with a nutrient solution was used to culture Rhizobium leguminosarum. The fermentation was carried out in a periodic pressure, oscillating, solid-state fermenter. At 30 °C and 3 atm, Rhizobium leguminosarum grew to 5.3×1010 c.f.u. g−1 substrate dry matter in about 36 h, while only 1.8×1010 c.f.u. g−1 substrate dry matter was obtained in a conventional static tray fermenter.