Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

Ruly Terán Hilares; Júlio César dos Santos; Muhammad Ajaz Ahmed; Seok Hwan Jeon; Silvio Silvério da Silva; Jong In Han

doi:10.1016/j.biortech.2016.05.004

Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

Ruly Terán Hilares, Júlio César dos Santos, Muhammad Ajaz Ahmed, Seok Hwan Jeon, Silvio Silvério da Silva, Jong In Han

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

65 Scopus citations

Abstract

Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1-0.5 M), solid/liquid ratio (S/L, 3-10%) and HC time (15-45 min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48 M of NaOH, 4.27% of S/L ratio and 44.48 min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.

Original language	English
Pages (from-to)	609-614
Number of pages	6
Journal	Bioresource Technology
Volume	214
DOIs	https://doi.org/10.1016/j.biortech.2016.05.004
State	Published - 1 Aug 2016
Externally published	Yes

Keywords

Alkaline pretreatment
Enzymatic digestibility
Hydrodynamic cavitation
Response surface methodology (RSM)
Sugarcane bagasse

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10.1016/j.biortech.2016.05.004

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title = "Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries",

abstract = "Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1-0.5 M), solid/liquid ratio (S/L, 3-10%) and HC time (15-45 min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48 M of NaOH, 4.27% of S/L ratio and 44.48 min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.",

keywords = "Alkaline pretreatment, Enzymatic digestibility, Hydrodynamic cavitation, Response surface methodology (RSM), Sugarcane bagasse",

author = "{Ter{\'a}n Hilares}, Ruly and {dos Santos}, {J{\'u}lio C{\'e}sar} and Ahmed, {Muhammad Ajaz} and Jeon, {Seok Hwan} and {da Silva}, {Silvio Silv{\'e}rio} and Han, {Jong In}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = aug,

day = "1",

doi = "10.1016/j.biortech.2016.05.004",

language = "English",

volume = "214",

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journal = "Bioresource Technology",

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T1 - Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

AU - Terán Hilares, Ruly

AU - dos Santos, Júlio César

AU - Ahmed, Muhammad Ajaz

AU - Jeon, Seok Hwan

AU - da Silva, Silvio Silvério

AU - Han, Jong In

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1-0.5 M), solid/liquid ratio (S/L, 3-10%) and HC time (15-45 min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48 M of NaOH, 4.27% of S/L ratio and 44.48 min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.

AB - Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1-0.5 M), solid/liquid ratio (S/L, 3-10%) and HC time (15-45 min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48 M of NaOH, 4.27% of S/L ratio and 44.48 min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.

KW - Alkaline pretreatment

KW - Enzymatic digestibility

KW - Hydrodynamic cavitation

KW - Response surface methodology (RSM)

KW - Sugarcane bagasse

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SN - 0960-8524

VL - 214

SP - 609

EP - 614

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

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Keywords

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