Study on the ethanol production from hydrolysate derived by ultrasonic pretreated defatted biomass of chlorella sorokiniana NITTS3

The outlooks and key challenges in renewable biomass feedstock utilization for value-added platform chemical via bioprocesses

“…Their experimental results were consistent with those of other studies reported in the literature. Dhandayuthapani et al (2021) also reported that continuous ethanol fermentation improved the ethanol yield to 86.70 mg ethanol per gram of biomass hydrolysate when compared with the conventional batch process [ 115 ]. Cell immobilization has also been introduced into the continuous fermentation process to achieve high cell density, prevent cell loss, and, subsequently, high productivity.…”

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“…The process generated a specific ethanol yield of about 114 L/ton of the feed, and surplus electricity of 293 kW under self-sufficiency mode. Dhandayuthapani et al [153] reported that the microalgae biomass, which was defatted and had undergone an ultrasonic pretreatment, generated about 52.10 g/L of ethanol under a fermentation conditions of 30 • C of temperature, 4.0 pH, and 200 rpm. The literature shows that sustainable ethanol has promising applications in direct oxidation fuel cells (DOFCs) for portable/mobile applications, with superior performance over hydrogen and methanol.…”