Fig. 4. Relationship between yeast concentration and ethanol production in co-immobilization of S. cerevisiae and A. oryzae (a,c); M. purpureus (b,d). Semi-filled, starch; opened,
residual sugar; closed, ethanol concentration. Symbol: (B) 5 105 cells mL1
; (>) 5 106 cells mL1
; (,) 5 107 cells mL1
; (6) 5 108 cells mL1
; (7) 5 109 cells mL1