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What are the disadvantages of using steam explosion treated lignocellulosic feedstock as fermentation feedstock? 


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Steam explosion treated lignocellulosic feedstock can pose challenges when used as fermentation feedstock due to the presence of inhibitory compounds that can impact the fermentation process. The inhibitors formed during steam explosion, such as furan aldehydes and organic acids, have been shown to significantly inhibit fermentation performance, leading to prolonged fermentation times and reduced ethanol productivities . Additionally, the high osmotic stress in environments with lignocellulosic inhibitors can exacerbate their inhibitory effects, potentially causing a redox imbalance that hinders the cells' ability to counteract osmotic stress, further impeding fermentation . Despite the benefits of steam explosion in improving biomass properties, including cellulose accessibility and heating value , the presence of inhibitory compounds remains a notable disadvantage when utilizing steam explosion treated lignocellulosic feedstock for fermentation processes.

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Lower delignification rates and sugar yields in enzymatic hydrolysis are limitations of using steam explosion-treated lignocellulosic feedstock for fermentation due to incomplete fractionation and saccharification efficiency.
Steam explosion treated lignocellulosic feedstocks can lead to prolonged fermentation times and low ethanol productivities due to high concentrations of toxic inhibitors and increased inhibition in high osmotic stress environments.
Steam explosion treated lignocellulosic feedstock for fermentation has no specific disadvantages mentioned in the paper. It enhances methane production by breaking down the lignocellulose complex into digestible components.
Not addressed in the paper.
Not addressed in the paper.

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