Abstract
Flux and Permeation Behaviour of Ultrafiltration in Sugaring Out Cellulose Hydrolysate Solution: A Membrane Screening
Highlights
Lignocelluloses biomass has been recognised as an alternative to fossil fuels in producing bioproducts and bioenergy by transforming the native cellulose and hemicelluloses to fermentable sugar for fermentation.[1,2,3] Several bioconversion schemes have been proposed based on microbial fermentation which typically requires pretreatment and enzymatic hydrolysis as the prerequisite steps.[4,5] The outlet streams from the pretreatment and enzymatic hydrolysis contain dilute sugars, along with excess components such as enzymes and biomass
The highest pure water flux was obtained with PES20 membrane, resulting from the high molecular weight cut-off of the membrane
This can be explained that in the beginning, the breaking down of microcrystalline cellulose to glucose molecules occurred during hydrolysis process, more molecules of glucose blocked the pore of the membranes
Summary
Lignocelluloses biomass has been recognised as an alternative to fossil fuels in producing bioproducts and bioenergy by transforming the native cellulose and hemicelluloses to fermentable sugar for fermentation.[1,2,3] Several bioconversion schemes have been proposed based on microbial fermentation which typically requires pretreatment and enzymatic hydrolysis as the prerequisite steps.[4,5] The outlet streams from the pretreatment and enzymatic hydrolysis contain dilute sugars, along with excess components such as enzymes and biomass These dilute fermentable sugars, which are the products from the enzymatic hydrolysis, may inhibit enzyme significantly, plaguing the rate of enzymatic degradation.[6,7] To overcome these deficiencies, the removal of the sugars from the hydrolysate by membrane process can contribute towards in improving the hydrolysis and in recovering the used enzymes. This can help to decrease the cost of enzymatic hydrolysis by reducing the usage of enzyme by recycling.[8,9]
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