Fig. 4From: Sustainable carbon sources for microbial organic acid production with filamentous fungiCarbon source and malic acid concentration by fermentation of A. oryzae DSM 1863 with cellulose/fiber hydrolysate (a) and hemicellulose fraction (b) from F. sylvatica. Batch fermentation was carried out in a small-scale bioreactor at 35 °C and 300 rpm for 168 hBack to article page