The effect of blending spruce and poplar on acid-catalyzed steam pretreatment and enzymatic hydrolysis

Balázs Frankó; Hanna Jovanovic; Mats Galbe; Ola Wallberg

doi:10.1016/j.biteb.2019.100241

The effect of blending spruce and poplar on acid-catalyzed steam pretreatment and enzymatic hydrolysis

Balázs Frankó, Hanna Jovanovic, Mats Galbe, Ola Wallberg

Division of Chemical Engineering

Lund University

Research output: Contribution to journal › Article › peer-review

Abstract

The aim of this work was to explore the possibility of mixed feedstocks utilization using acid-catalyzed steam pretreatment in the context of forest biomass. Three steam pretreatment conditions were applied to characterize the interactions between spruce (softwood) and poplar (hardwood) that were concurrently processed by SO₂-catalyzed steam pretreatment and enzymatic hydrolysis. The effects of blending feedstocks were evaluated in terms of composition and enzymatic digestibility. The combined sugar yields after steam pretreatment and enzymatic hydrolysis ranged from 58% to 71%. No synergistic or antagonistic interactions were observed in the concurrent use of spruce and poplar—our linear interpolation model accurately predicted the overall sugar recovery after steam pretreatment and enzymatic hydrolysis for a 50:50 blend to within 3%, based on the results of the individual feedstocks.

Original language	English
Article number	100241
Journal	Bioresource Technology Reports
Volume	7
DOIs	https://doi.org/10.1016/j.biteb.2019.100241
Publication status	Published - 2019 Sept 1

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Subject classification (UKÄ)

Chemical Engineering

Free keywords

Enzymatic hydrolysis
Hardwood
Mixed feedstocks
Softwood
Steam pretreatment

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10.1016/j.biteb.2019.100241

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abstract = "The aim of this work was to explore the possibility of mixed feedstocks utilization using acid-catalyzed steam pretreatment in the context of forest biomass. Three steam pretreatment conditions were applied to characterize the interactions between spruce (softwood) and poplar (hardwood) that were concurrently processed by SO2-catalyzed steam pretreatment and enzymatic hydrolysis. The effects of blending feedstocks were evaluated in terms of composition and enzymatic digestibility. The combined sugar yields after steam pretreatment and enzymatic hydrolysis ranged from 58\% to 71\%. No synergistic or antagonistic interactions were observed in the concurrent use of spruce and poplar—our linear interpolation model accurately predicted the overall sugar recovery after steam pretreatment and enzymatic hydrolysis for a 50:50 blend to within 3\%, based on the results of the individual feedstocks.",

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AU - Frankó, Balázs

AU - Jovanovic, Hanna

AU - Galbe, Mats

AU - Wallberg, Ola

PY - 2019/9/1

Y1 - 2019/9/1

N2 - The aim of this work was to explore the possibility of mixed feedstocks utilization using acid-catalyzed steam pretreatment in the context of forest biomass. Three steam pretreatment conditions were applied to characterize the interactions between spruce (softwood) and poplar (hardwood) that were concurrently processed by SO2-catalyzed steam pretreatment and enzymatic hydrolysis. The effects of blending feedstocks were evaluated in terms of composition and enzymatic digestibility. The combined sugar yields after steam pretreatment and enzymatic hydrolysis ranged from 58% to 71%. No synergistic or antagonistic interactions were observed in the concurrent use of spruce and poplar—our linear interpolation model accurately predicted the overall sugar recovery after steam pretreatment and enzymatic hydrolysis for a 50:50 blend to within 3%, based on the results of the individual feedstocks.

AB - The aim of this work was to explore the possibility of mixed feedstocks utilization using acid-catalyzed steam pretreatment in the context of forest biomass. Three steam pretreatment conditions were applied to characterize the interactions between spruce (softwood) and poplar (hardwood) that were concurrently processed by SO2-catalyzed steam pretreatment and enzymatic hydrolysis. The effects of blending feedstocks were evaluated in terms of composition and enzymatic digestibility. The combined sugar yields after steam pretreatment and enzymatic hydrolysis ranged from 58% to 71%. No synergistic or antagonistic interactions were observed in the concurrent use of spruce and poplar—our linear interpolation model accurately predicted the overall sugar recovery after steam pretreatment and enzymatic hydrolysis for a 50:50 blend to within 3%, based on the results of the individual feedstocks.

KW - Enzymatic hydrolysis

KW - Hardwood

KW - Mixed feedstocks

KW - Softwood

KW - Steam pretreatment

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DO - 10.1016/j.biteb.2019.100241

M3 - Article

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SN - 2589-014X

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JO - Bioresource Technology Reports

JF - Bioresource Technology Reports

M1 - 100241

ER -

The effect of blending spruce and poplar on acid-catalyzed steam pretreatment and enzymatic hydrolysis

Abstract

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Subject classification (UKÄ)

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