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Erschienen in: Biomass Conversion and Biorefinery 1/2020

26.11.2019 | Original Article

Alkaline hydrogen peroxide-pretreated sugarcane tops for bioethanol production—a process optimization study

verfasst von: Subramaniapillai Niju, Thangavelu Nishanthini, Muthusamy Balajii

Erschienen in: Biomass Conversion and Biorefinery | Ausgabe 1/2020

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Abstract

In the present work, sugarcane tops (SCT), an agricultural residue, were subjected to alkaline hydrogen peroxide (AHP) subsequently followed by acid hydrolysis for the maximum release of fermentable sugars for bioethanol production. The process parameters that affect the AHP pretreatment efficiency include AHP concentration (%, v/v), SCT loading (%, w/v), pretreatment time (h), pretreatment temperature (°C), and agitation speed (rpm) were studied for effective delignification. Furthermore, central composite design (CCD) based on response surface methodology (RSM) was applied for optimizing various process parameters of acid hydrolysis such as sulfuric acid concentration (%, v/v), reaction time (min), and reaction temperature (°C). The optimal hydrolysis conditions yielded 6.911 g/L of xylose and 4.106 g/L of glucose. The hydrolyzate containing fermentable sugars was fermented using Saccharomyces cerevisiae, and about 9.9 vol% ethanol was obtained at the end of 24 h fermentation. The native, pretreated, and hydrolyzed SCT were also characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) techniques.

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Metadaten
Titel
Alkaline hydrogen peroxide-pretreated sugarcane tops for bioethanol production—a process optimization study
verfasst von
Subramaniapillai Niju
Thangavelu Nishanthini
Muthusamy Balajii
Publikationsdatum
26.11.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
Biomass Conversion and Biorefinery / Ausgabe 1/2020
Print ISSN: 2190-6815
Elektronische ISSN: 2190-6823
DOI
https://doi.org/10.1007/s13399-019-00524-z

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