Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation

Adriana Artola Casacuberta; Antonio Sanchez Ferrer; ESTHER MOLINA PEÑATE

doi:10.1016/j.wasman.2021.11.014

Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation

Adriana Artola Casacuberta, Antonio Sanchez Ferrer, ESTHER MOLINA PEÑATE

Department of Chemical, Biological and Environmental Engineering

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

1 Citation (Scopus)

2 Downloads (Pure)

Abstract

To reach a more sustainable society, the implementation of a circular economy perspective in municipal waste management becomes essential. In this work, the enzymatic hydrolysis of source-separated organic fraction of municipal solid waste (OFMSW) has been optimized as a sugar-releasing step. A liquid sugar concentrate, with a maximum reducing sugar concentration of 50.56 g L-1, and a solid hydrolyzed fraction were obtained. The effect of the harshness of the hydrolysis conditions was evaluated on the performance of the resulting solid fraction as a substrate for Bacillus thuringiensis biopesticide production through solid-state fermentation. A production of 3.9 x 10(8) viable cells g(-1) dry matter with a 33% sporulation ratio was achieved for milder hydrolysis conditions, highlighting the potential of the solid fraction of hydrolysis as a substrate of SSF processes. The proposed valorization pathway for the OFMSW results in a sugar concentrate with potential for fermentative processes and a fermented solid containing biopesticides from Bacillus thuringiensis.

Translated title of the contribution	Hidrólisis enzimática de la fracción orgánica de residuos sólidos urbanos: Optimización de la fracción sólida para la producción de biopesticida de Bacillus thuringiensis por fermentación en estado sólido
Original language	English
Pages (from-to)	304-311
Number of pages	8
Journal	Waste Management
Volume	137
DOIs	https://doi.org/10.1016/j.wasman.2021.11.014
Publication status	Published - 1 Jan 2022

Keywords

Bacillus thuringiensis
Biopesticide
Enzymatic hydrolysis
OFMSW
Solid-State Fermentation
Hydrolysis
Biological Control Agents
Solid Waste/analysis
Bioreactors
Fermentation
FOOD WASTE
MANAGEMENT
VALORISATION
PRETREATMENT
DIGESTATE
METHANE PRODUCTION
BIOWASTE

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BIOSURFACTANTES GLICOLIPIDOS A PARTIR DE RESIDUOS, UNA ALTERNATIVA A LOS SURFACTANTES QUIMICOS EN LA BIOECONOMIA CIRCULAR
Gea Leiva, M. T., Barrena Gomez, R., Eras Muñoz, E. N., GOREISHI, G., MOLINA PEÑATE, E., Moral Vico, A. J., Artola Casacuberta, A., Font Segura, X. & Sanchez Ferrer, A.
1/09/21 → 31/08/24
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title = "Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation",

abstract = "To reach a more sustainable society, the implementation of a circular economy perspective in municipal waste management becomes essential. In this work, the enzymatic hydrolysis of source-separated organic fraction of municipal solid waste (OFMSW) has been optimized as a sugar-releasing step. A liquid sugar concentrate, with a maximum reducing sugar concentration of 50.56 g L-1, and a solid hydrolyzed fraction were obtained. The effect of the harshness of the hydrolysis conditions was evaluated on the performance of the resulting solid fraction as a substrate for Bacillus thuringiensis biopesticide production through solid-state fermentation. A production of 3.9 x 10(8) viable cells g(-1) dry matter with a 33% sporulation ratio was achieved for milder hydrolysis conditions, highlighting the potential of the solid fraction of hydrolysis as a substrate of SSF processes. The proposed valorization pathway for the OFMSW results in a sugar concentrate with potential for fermentative processes and a fermented solid containing biopesticides from Bacillus thuringiensis.",

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author = "{Artola Casacuberta}, Adriana and {Sanchez Ferrer}, Antonio and {MOLINA PE{\~N}ATE}, ESTHER",

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language = "English",

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Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation. / Artola Casacuberta, Adriana ; Sanchez Ferrer, Antonio; MOLINA PEÑATE, ESTHER.

In: Waste Management, Vol. 137, 01.01.2022, p. 304-311.

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

TY - JOUR

T1 - Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation

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AU - Sanchez Ferrer, Antonio

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AB - To reach a more sustainable society, the implementation of a circular economy perspective in municipal waste management becomes essential. In this work, the enzymatic hydrolysis of source-separated organic fraction of municipal solid waste (OFMSW) has been optimized as a sugar-releasing step. A liquid sugar concentrate, with a maximum reducing sugar concentration of 50.56 g L-1, and a solid hydrolyzed fraction were obtained. The effect of the harshness of the hydrolysis conditions was evaluated on the performance of the resulting solid fraction as a substrate for Bacillus thuringiensis biopesticide production through solid-state fermentation. A production of 3.9 x 10(8) viable cells g(-1) dry matter with a 33% sporulation ratio was achieved for milder hydrolysis conditions, highlighting the potential of the solid fraction of hydrolysis as a substrate of SSF processes. The proposed valorization pathway for the OFMSW results in a sugar concentrate with potential for fermentative processes and a fermented solid containing biopesticides from Bacillus thuringiensis.

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M3 - Article

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VL - 137

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JO - Waste Management

JF - Waste Management

SN - 0956-053X

ER -

Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation

Abstract

Keywords

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BIOSURFACTANTES GLICOLIPIDOS A PARTIR DE RESIDUOS, UNA ALTERNATIVA A LOS SURFACTANTES QUIMICOS EN LA BIOECONOMIA CIRCULAR

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