Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus

Carrot pomace, a major agricultural waste from the juice industry, was used as a feedstock for bioethanol production by fermentation with the thermotolerant yeast Kluyveromyces marxianus. Treatment of the carrot pomace with AccelleraseTM 1000 and pectinase at 50 °C for 84 h, resulted in conversion o...

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প্রধান লেখক: Kow-Jen Duan, Bo-Hong Jiang, Chi-Yang Yu
বিন্যাস: প্রবন্ধ
ভাষা:English
প্রকাশিত: MDPI AG 2013-03-01
মালা:Energies
বিষয়গুলি:
অনলাইন ব্যবহার করুন:http://www.mdpi.com/1996-1073/6/3/1794
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author Kow-Jen Duan
Bo-Hong Jiang
Chi-Yang Yu
author_facet Kow-Jen Duan
Bo-Hong Jiang
Chi-Yang Yu
author_sort Kow-Jen Duan
collection DOAJ
description Carrot pomace, a major agricultural waste from the juice industry, was used as a feedstock for bioethanol production by fermentation with the thermotolerant yeast Kluyveromyces marxianus. Treatment of the carrot pomace with AccelleraseTM 1000 and pectinase at 50 °C for 84 h, resulted in conversion of 42% of its mass to fermentable sugars, mainly glucose, fructose, and sucrose. Simultaneous saccharification and fermentation (SSF) at 42 °C was performed on 10% (w/v) carrot pomace; the concentration of ethanol reached 18 g/L and the yield of ethanol from carrot pomace was 0.18 g/g. The highest ethanol concentration of 37 g/L was observed with an additional charge of 10% supplemented to the original 10% of carrot pomace after 12 h; the corresponding yield was 0.185 g/g. Our results clearly demonstrated the potential of combining a SSF process with thermotolerant yeast for the production of bioethanol using carrot pomace as a feedstock.
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spelling doaj.art-d314a9adee5f48eea77e88b9f7f69aa12022-12-22T02:20:10ZengMDPI AGEnergies1996-10732013-03-01631794180110.3390/en6031794Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianusKow-Jen DuanBo-Hong JiangChi-Yang YuCarrot pomace, a major agricultural waste from the juice industry, was used as a feedstock for bioethanol production by fermentation with the thermotolerant yeast Kluyveromyces marxianus. Treatment of the carrot pomace with AccelleraseTM 1000 and pectinase at 50 °C for 84 h, resulted in conversion of 42% of its mass to fermentable sugars, mainly glucose, fructose, and sucrose. Simultaneous saccharification and fermentation (SSF) at 42 °C was performed on 10% (w/v) carrot pomace; the concentration of ethanol reached 18 g/L and the yield of ethanol from carrot pomace was 0.18 g/g. The highest ethanol concentration of 37 g/L was observed with an additional charge of 10% supplemented to the original 10% of carrot pomace after 12 h; the corresponding yield was 0.185 g/g. Our results clearly demonstrated the potential of combining a SSF process with thermotolerant yeast for the production of bioethanol using carrot pomace as a feedstock.http://www.mdpi.com/1996-1073/6/3/1794bioethanolcarrot pomaceKluyveromyces marxianussimultaneous saccharification and fermentation
spellingShingle Kow-Jen Duan
Bo-Hong Jiang
Chi-Yang Yu
Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
Energies
bioethanol
carrot pomace
Kluyveromyces marxianus
simultaneous saccharification and fermentation
title Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
title_full Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
title_fullStr Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
title_full_unstemmed Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
title_short Production of Bioethanol from Carrot Pomace Using the Thermotolerant Yeast Kluyveromyces marxianus
title_sort production of bioethanol from carrot pomace using the thermotolerant yeast kluyveromyces marxianus
topic bioethanol
carrot pomace
Kluyveromyces marxianus
simultaneous saccharification and fermentation
url http://www.mdpi.com/1996-1073/6/3/1794
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