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  • Title: Process integration for ethanol production from corn and corn stover as mixed substrates.
    Author: Yu J, Xu Z, Liu L, Chen S, Wang S, Jin M.
    Journal: Bioresour Technol; 2019 May; 279():10-16. PubMed ID: 30710815.
    Abstract:
    This work investigated all possible process integration strategies for ethanol production from corn and dilute acid pretreated corn stover (CS) as mixed substrates. Three corn to pretreated CS ratios (20%:10%, 10%:20% and 5%:25%) were examined. When the ratio of corn to pretreated CS was 20%:10%, the process integration strategy that mixed corn with CS hydrolysate for liquefaction followed by SSF resulted in the highest ethanol titer of 99.3 g/L. Mixing liquefied corn with pretreated CS for hydrolysis/saccharification followed by fermentation was the best strategy for the other two ratios. The strategy of mixing liquefied corn with pretreated CS for 6 h hydrolysis followed by fermentation showed the highest productivity for all the tested ratios.
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