A molar basis comparison of calcium hydroxide, sodium hydroxide, and potassium hydroxide on the pretreatment of switchgrass and miscanthus under high solids conditions

•OH− source demonstrated a varied effect upon pretreated miscanthus and switchgrass.•At equal OH− concentration, KOH and NaOH reduced lignin more than Ca(OH)2.•Cellulose conversion during enzyme hydrolysis was enhanced by Ca(OH)2, NaOH and KOH.•The $/kg glucose released range from $0.11–$0.70 and in...

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Bibliographic Details
Published in:Industrial crops and products 2016-12, Vol.92, p.165-173
Main Authors: Soares Rodrigues, Carla Inês, Jackson, Joshua J., Montross, Michael D.
Format: Article
Language:English
Subjects:
Alkaline pretreatment
Dedicated energy crops
Enzymatic hydrolysis
High solids
Molar basis
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Summary:•OH− source demonstrated a varied effect upon pretreated miscanthus and switchgrass.•At equal OH− concentration, KOH and NaOH reduced lignin more than Ca(OH)2.•Cellulose conversion during enzyme hydrolysis was enhanced by Ca(OH)2, NaOH and KOH.•The $/kg glucose released range from $0.11–$0.70 and increased NaOH
ISSN:0926-6690
1872-633X
DOI:10.1016/j.indcrop.2016.08.010