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Table 1 Ethanol yield and glucose consumption time by free and immobilized cells in Alginate beads and sponges

From: Comparative analysis of stirred catalytic basket bio-reactor for the production of bio-ethanol using free and immobilized Saccharomyces cerevisiae cells

Immobilization method Stirrer (rpm) Glucose conc. (g l) Ethanol productivity (g l−1 h) Ethanol yield glucose (g g−1) Volumetric ethanol yield (g l−1) Glucose consumption time (h)
Free cells 200 200 1.68 0.15 49 29
Alginate 200 200 1.47 0.195 34 23
Sponge 200 200 4.29 0.285 72 17
Free cells 500 200 2.45 0.24 50 20
Alginate 500 200 11.28 0.35 79 7
Sponge 500 200 10.40 0.405 83 8
  1. Ethanol yield (g g−1) and Ethanol productivity (g l−1 h) refer Eqs. (1) and (2)