کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7077506 | 1459978 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioethanol production from hemicellulose rich Populus nigra involving recombinant hemicellulases from Clostridium thermocellum
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Bioethanol was produced from poplar leafy biomass rich in hemicelluloses content involving recombinant Clostridium thermocellum hemicellulases and pentose sugar utilizing Candida shehatae. FT-IR analysis revealed effective AFEX pretreatment of poplar leaves. Repetitive batch strategy yielded â¼1.5-fold rise in cell biomass and specific activity of both, acetylxylanesterase (Axe) and GH43 hemicellulase. TLC and HPAEC exhibited xylose and arabinose release from hydrolyzed biomass. SSF trial with 1% (w vâ1) pretreated poplar and mixed enzymes showed â¼1.5-fold higher ethanol titre as compared with SHF. The shake flask SSF with 5% (w vâ1) pretreated poplar furnished 4.56 and 5.43 g Lâ1 ethanol with Axe and mixed enzymes, respectively. Whereas, bioreactor scale-up exhibited â¼1.25-fold increase in ethanol titres (5.68, 6.75 g Lâ1) as compared with shake flask with an yield of 0.295 (g gâ1) and 0.351 (g gâ1), respectively with Axe and mixed enzymes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 165, August 2014, Pages 205-213
Journal: Bioresource Technology - Volume 165, August 2014, Pages 205-213
نویسندگان
Ashutosh Gupta, Saprativ P. Das, Arabinda Ghosh, Rajan Choudhary, Debasish Das, Arun Goyal,