Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology

The present study evaluated first the characterization of Teff straw and then Box–Behnken design (BBD), and response surface methodology was adopted to optimize the parameters (hydrolysis temperature, dilute sulfuric acid concentration, solid to liquid ratio, and hydrolysis time) of dilute sulfuric...

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Autores principales:	Andinet Alemayehu Tesfaw, Belachew Zegale Tizazu
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/bb4a5a8d3e974930a80177b642c63f17
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spelling	oai:doaj.org-article:bb4a5a8d3e974930a80177b642c63f172021-11-15T01:18:58ZReducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology1687-879510.1155/2021/2857764https://doaj.org/article/bb4a5a8d3e974930a80177b642c63f172021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/2857764https://doaj.org/toc/1687-8795The present study evaluated first the characterization of Teff straw and then Box–Behnken design (BBD), and response surface methodology was adopted to optimize the parameters (hydrolysis temperature, dilute sulfuric acid concentration, solid to liquid ratio, and hydrolysis time) of dilute sulfuric acid hydrolysis of Teff straw in order to get a maximum yield of total reducing sugar (TRS). The chemical analysis of Teff straw revealed high amounts of cellulose (41.8 wt%), hemicellulose (38 wt%), and lignin (17 wt%). The morphological analysis using SEM showed that hydrolyzed Teff straw with dilute sulfuric acid has more pores and distorted bundles than those of raw Teff straw. XRD analysis also indicated that hydrolyzed Teff straw has higher crystallinity index and smaller crystallite size than raw Teff straw, which might be due to removal of hemicellulose, amorphous cellulose, and lignin components. Under the optimized conditions for dilute sulfuric acid hydrolysis of Teff straw (120°C, 4% v/v H2SO4 concentration, 1 : 20 solid to liquid ratio, and 55 min hydrolysis time), we have found a total reducing sugar yield of 26.65 mg/g. The results of validation experiment under the optimum conditions agreed well with model predictions.Andinet Alemayehu TesfawBelachew Zegale TizazuHindawi LimitedarticleBiotechnologyTP248.13-248.65ENInternational Journal of Biomaterials, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biotechnology TP248.13-248.65
spellingShingle	Biotechnology TP248.13-248.65 Andinet Alemayehu Tesfaw Belachew Zegale Tizazu Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
description	The present study evaluated first the characterization of Teff straw and then Box–Behnken design (BBD), and response surface methodology was adopted to optimize the parameters (hydrolysis temperature, dilute sulfuric acid concentration, solid to liquid ratio, and hydrolysis time) of dilute sulfuric acid hydrolysis of Teff straw in order to get a maximum yield of total reducing sugar (TRS). The chemical analysis of Teff straw revealed high amounts of cellulose (41.8 wt%), hemicellulose (38 wt%), and lignin (17 wt%). The morphological analysis using SEM showed that hydrolyzed Teff straw with dilute sulfuric acid has more pores and distorted bundles than those of raw Teff straw. XRD analysis also indicated that hydrolyzed Teff straw has higher crystallinity index and smaller crystallite size than raw Teff straw, which might be due to removal of hemicellulose, amorphous cellulose, and lignin components. Under the optimized conditions for dilute sulfuric acid hydrolysis of Teff straw (120°C, 4% v/v H2SO4 concentration, 1 : 20 solid to liquid ratio, and 55 min hydrolysis time), we have found a total reducing sugar yield of 26.65 mg/g. The results of validation experiment under the optimum conditions agreed well with model predictions.
format	article
author	Andinet Alemayehu Tesfaw Belachew Zegale Tizazu
author_facet	Andinet Alemayehu Tesfaw Belachew Zegale Tizazu
author_sort	Andinet Alemayehu Tesfaw
title	Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
title_short	Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
title_full	Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
title_fullStr	Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
title_full_unstemmed	Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology
title_sort	reducing sugar production from teff straw biomass using dilute sulfuric acid hydrolysis: characterization and optimization using response surface methodology
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/bb4a5a8d3e974930a80177b642c63f17
work_keys_str_mv	AT andinetalemayehutesfaw reducingsugarproductionfromteffstrawbiomassusingdilutesulfuricacidhydrolysischaracterizationandoptimizationusingresponsesurfacemethodology AT belachewzegaletizazu reducingsugarproductionfromteffstrawbiomassusingdilutesulfuricacidhydrolysischaracterizationandoptimizationusingresponsesurfacemethodology
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Reducing Sugar Production from Teff Straw Biomass Using Dilute Sulfuric Acid Hydrolysis: Characterization and Optimization Using Response Surface Methodology

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