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Effect of various pretreatment methods on sugar and ethanol production from cellulosic water hyacinth

Rezania, Shahabaldin and Alizadeh, Hossein and Park, Junboum and Md. Din, Mohd. Fadhil and Darajeh, Negisa and Ebrahimi, Shirin Shafiei and Saha, Bidyut Baran and Kamyab, Hesam (2019) Effect of various pretreatment methods on sugar and ethanol production from cellulosic water hyacinth. BioResources, 14 (1). pp. 592-606. ISSN 1930-2126


Official URL: http://dx.doi.org/10.15376/biores.14.1.592-606


Effects of acid, alkali, ionic liquid (IL), and microwave-alkali pretreatments on cellulosic water hyacinth (WH) were investigated based on the total reducing sugars (TRS) and ethanol production. For the first time, IL pretreatment with (1-Ethyl-3-methylimidazolium acetate ([EMIM][Ac]) was used for WH, and the efficiency was compared with the other methods. Cellulase and Saccharomyces cerevisiae were fermented together for 72 h. Based on the results, all pretreatment methods effectively increased the sugar content as well as the ethanol yield. Untreated WH had 25 ± 1.5 mg/g of TRS, which was increased to 157 ± 8.2 mg/g, 95 ± 3.1 mg/g, 51 ± 4.2 mg/g, and 45 ± 2.6 mg/g via alkali, microwave-alkali, acid, and IL pretreatments, respectively. The highest TRS level of 402 mg/g was obtained in 24 h and 6.2 ± 0.4 g/L of ethanol in 48 h of fermentation with the alkali-treated WH. The ethanol production was followed by other treatment methods of WH in the order of microwave-alkali, acid, and IL. The results indicated that the ethanol production from WH was related to the type of pretreatment as well as the TRS production.

Item Type:Article
Uncontrolled Keywords:ethanol production, pretreatment methods, total reducing sugar, water hyacinth
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:87652
Deposited By: Yanti Mohd Shah
Deposited On:30 Nov 2020 17:06
Last Modified:30 Nov 2020 17:06

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