کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8882343 | 1625143 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of thermal acid hydrolysis for bioethanol production from Ulva rigida with yeast Pachysolen tannophilus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
We investigated the feasibility of bioethanol production from hydrolysate of green seaweed Ulva rigida. The pretreatment of the green macroalgae was optimized using thermal acid hydrolysis to obtain a high reducing sugars yield. The dry seaweed biomass, (5 to 15% w/v) was hydrolyzed with two different acid catalysts, H2SO4 and HCl at a concentration of 0 to 10.0% (v/v). The hydrolysis times ranging from 30 to 60 min were investigated when the mixture was autoclaved. A condition of 4% (v/v) sulfuric acid, 10% (w/v) biomass loading and 1 h of incubation time was optimum to obtain maximum total fermentable reducing sugar concentration of 34 ± 0.25 mg/ml and 0.50 ± 0.02 mg/ml of phenolic compounds. Fermentation of the hydrolysate using adapted and non-adapted Pachysolen tannophilus produced 0.12 g/g and 0.09 g/g (ethanol to dry seaweed), respectively. These preliminaries results indicate a potential use of the macroalgae U. rigida for bioethanol production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: South African Journal of Botany - Volume 115, March 2018, Pages 161-169
Journal: South African Journal of Botany - Volume 115, March 2018, Pages 161-169
نویسندگان
M. El Harchi, F.Z. Fakihi Kachkach, N. El Mtili,