کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6763546 | 1431570 | 2019 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Response surface optimization of bioethanol production from third generation feedstock - Eucheuma cottonii
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
Response Surface Methodology (RSM) based on Central Composite Design (CCD) was employed to optimize the conditions of enzymatic hydrolysis and fermentation of the seaweed Eucheuma cottonii. The significant influence of cellulose loading, enzyme loading and incubation time in enzymatic hydrolysis that has been screened by Plackett-Burman Design (PBD) was optimized using CCD. The optimum glucose concentration of 24.24â¯g/L (81% glucose yield) was obtained at 3% (v/v) of cellulose loading, 4% (v/v) of enzyme loading and 54â¯h incubation time. Subsequently, PBD analysis showed the significant effects of inoculum concentration, pH, temperature and time on fermentation process. Further optimization study by CCD revealed that 12% (v/v) of inoculum concentration, pH 5.2, 32â¯Â°C and 72â¯h of fermentation time enhanced the bioethanol production up to 9.77â¯g/L with the yield of 0.40â¯g/g and 78% conversion efficiency. Thus, the RSM based optimization of bioethanol from Eucheuma cottonii showed satisfactory results in this research. In short, it can be concluded that this optimization approach will serve as a good foundation for the realization of a consistent bioethanol production in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 132, March 2019, Pages 1-10
Journal: Renewable Energy - Volume 132, March 2019, Pages 1-10
نویسندگان
Siti Azmah Jambo, Rahmath Abdulla, Hartinie Marbawi, Jualang Azlan Gansau,