Optimization of pretreatment conditions for enhanced sugar release
2017
Kushwaha, Deepika | Mishra, Ishita | Srivastava, Neha | Mishra, Pradeep Kumar
Present investigation was done to evaluate various algal genera found in water bodies of Varanasi city. The potential of any biomass for biofuels (bioalcohols, biohydrogen, etc.) production depends on the quantity of extractable sugar present in it. Acid (H ₂SO ₄) and alkali (NaOH) pretreatment were performed, and H ₂SO ₄ was chosen due to its nearly double yield as compared with alkaline pretreatment. Response surface methodology was utilized for the optimization of operating parameters such as treatment temperature, time, and acid concentration. Sugar yield up to 0.33 g/g of dry biomass was obtained using cyanobacterial biomass of Lyngbya limnetica , at 100°C, 59.19 min, and H ₂SO ₄ concentration of 1.63 M.
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