Particulate Size of Microalgal Biomass Affects Hydrolysate Properties and Bioethanol Concentration

Figure 1

FTIR spectra for microalgal biomass with different particle sizes under different Cases. (a) Nonpretreated microalgal biomass (original powdered sample); Case 1 (cellulase only): (b) 35 μm ≤ 𝑥 ≤ 90 μm, (d) 125 μm ≤ 𝑥 ≤ 180 μm, and (f) 295 μm ≤ 𝑥 ≤ 425 μm; Case 2 (cellulase + cellobiase): (c) 35 μm ≤ 𝑥 ≤ 90 μm, (e) 125 μm ≤ 𝑥 ≤ 180 μm, and (g) 295 μm ≤ 𝑥 ≤ 425 μm.