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Ultrasound irradiation in the production of ethanol from biomass

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  • Karimi, Mahmoud
  • Jenkins, Bryan
  • Stroeve, Pieter

Abstract

Ethanol produced from renewable biomass, such as lignocellulosic feedstock, is one of the alternative energy resources that can be environmentally friendly. However, physical and chemical barriers caused by the close association of the main components of lignocellulosic biomass, as well as starch, hinder the hydrolysis of cellulose and hemicellulose in lignocellulose as well as amylase and amylopectin in starch to fermentable sugars. One of the main goals of pretreatment for enzymatic hydrolysis is to increase the enzyme accessibility for improving digestibility of cellulose and starch. Ultrasound irradiation applied to cellulosic materials and starch-based feedstock was found to enhance the efficiency of hydrolysis and subsequently increase the sugar yield. Prior research conducted on applying ultrasonic technology for cellulose and starch pretreatment has considered a variety of effects on physical and chemical characteristics, hydrolysis efficiency and ethanol yield. This paper reviews the application of ultrasound irradiation to cellulose and starch prior to and during hydrolysis in terms of sugar and ethanol yields. It also addresses characteristics such as accessibility, crystallinity, degree of polymerization, morphological structure, swelling power, particle size and viscosity as influenced by ultrasonic treatment.

Suggested Citation

  • Karimi, Mahmoud & Jenkins, Bryan & Stroeve, Pieter, 2014. "Ultrasound irradiation in the production of ethanol from biomass," Renewable and Sustainable Energy Reviews, Elsevier, vol. 40(C), pages 400-421.
    • Handle: RePEc:eee:rensus:v:40:y:2014:i:c:p:400-421
    DOI: 10.1016/j.rser.2014.07.151
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    Cited by:

    1. Fakayode, Olugbenga Abiola & Aboagarib, Elmuez Alsir Ahmed & Yan, Dong & Li, Mo & Wahia, Hafida & Mustapha, Abdullateef Taiye & Zhou, Cunshan & Ma, Haile, 2020. "Novel two-pot approach ultrasonication and deep eutectic solvent pretreatments for watermelon rind delignification: Parametric screening and optimization via response surface methodology," Energy, Elsevier, vol. 203(C).
    2. Khoobbakht, Golmohammad & Kheiralipour, Kamran & Rasouli, Hamed & Rafiee, Mojtaba & Hadipour, Mehrdad & Karimi, Mahmoud, 2020. "Experimental exergy analysis of transesterification in biodiesel production," Energy, Elsevier, vol. 196(C).
    3. Fakayode, Olugbenga Abiola & Akpabli-Tsigbe, Nelson Dzidzorgbe Kwaku & Wahia, Hafida & Tu, Shanshan & Ren, Manni & Zhou, Cunshan & Ma, Haile, 2021. "Integrated bioprocess for bio-ethanol production from watermelon rind biomass: Ultrasound-assisted deep eutectic solvent pretreatment, enzymatic hydrolysis and fermentation," Renewable Energy, Elsevier, vol. 180(C), pages 258-270.
    4. Huang, Caoxing & Jiang, Xiao & Shen, Xiaojun & Hu, Jinguang & Tang, Wei & Wu, Xinxing & Ragauskas, Arthur & Jameel, Hasan & Meng, Xianzhi & Yong, Qiang, 2022. "Lignin-enzyme interaction: A roadblock for efficient enzymatic hydrolysis of lignocellulosics," Renewable and Sustainable Energy Reviews, Elsevier, vol. 154(C).

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