Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment
The most effective method for producing fermentable sugars (FSs) from biomass is thermochemical pretreatment assisted by enzymatic hydrolysis. However, the enzymatic hydrolysis-assisted thermochemical pretreatment method is limited by the formation of fermentation inhibitors, and it is time-consumin...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2022-11-01
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| Series: | BioResources |
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| Online Access: | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22259 |
| _version_ | 1797794778619838464 |
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| author | Sibel Uzuner |
| author_facet | Sibel Uzuner |
| author_sort | Sibel Uzuner |
| collection | DOAJ |
| description | The most effective method for producing fermentable sugars (FSs) from biomass is thermochemical pretreatment assisted by enzymatic hydrolysis. However, the enzymatic hydrolysis-assisted thermochemical pretreatment method is limited by the formation of fermentation inhibitors, and it is time-consuming. There is growing interest in using a microwave (MW) pretreatment due to its uniform and rapid heating. This study aimed to determine, perform data-driven modeling, and optimize the effect of MW combined with dilute acid pretreatment (MW-DA) on the production of FSs from hazelnut shells. An artificial neural networks (ANNs) model based on Box-Behnken Design (BBD) was the best model described for fermentable sugar extraction (FSE). Optimization via BBD-based ANNs model was carried out for an acid concentration of 0.5 to 2% (w/w), a pretreatment time of 5 to 25 min, a pressure of 5 to 15 bar, and a temperature of 120 to 160 °C. The optimized FSE was estimated at 374 mg/g (81.4% conversion efficiency), with a severity factor of 3.61 under 1.58% H2SO4 for 13 min at 160 °C and 8.5 bar. Using the MW-DA pretreatment process lowered the costs significantly due to the decreases in acid concentration and pretreatment time. |
| first_indexed | 2024-03-13T03:08:01Z |
| format | Article |
| id | doaj.art-8a2a74bb4d5140cabd40d2fef8e249b7 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-03-13T03:08:01Z |
| publishDate | 2022-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-8a2a74bb4d5140cabd40d2fef8e249b72023-06-26T18:42:35ZengNorth Carolina State UniversityBioResources1930-21262022-11-01181613628261Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid PretreatmentSibel Uzuner0Izmir Institute of TechnologyThe most effective method for producing fermentable sugars (FSs) from biomass is thermochemical pretreatment assisted by enzymatic hydrolysis. However, the enzymatic hydrolysis-assisted thermochemical pretreatment method is limited by the formation of fermentation inhibitors, and it is time-consuming. There is growing interest in using a microwave (MW) pretreatment due to its uniform and rapid heating. This study aimed to determine, perform data-driven modeling, and optimize the effect of MW combined with dilute acid pretreatment (MW-DA) on the production of FSs from hazelnut shells. An artificial neural networks (ANNs) model based on Box-Behnken Design (BBD) was the best model described for fermentable sugar extraction (FSE). Optimization via BBD-based ANNs model was carried out for an acid concentration of 0.5 to 2% (w/w), a pretreatment time of 5 to 25 min, a pressure of 5 to 15 bar, and a temperature of 120 to 160 °C. The optimized FSE was estimated at 374 mg/g (81.4% conversion efficiency), with a severity factor of 3.61 under 1.58% H2SO4 for 13 min at 160 °C and 8.5 bar. Using the MW-DA pretreatment process lowered the costs significantly due to the decreases in acid concentration and pretreatment time.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22259microwave pretreatmentseverityfermentable sugarvalorization |
| spellingShingle | Sibel Uzuner Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment BioResources microwave pretreatment severity fermentable sugar valorization |
| title | Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment |
| title_full | Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment |
| title_fullStr | Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment |
| title_full_unstemmed | Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment |
| title_short | Improvement of Fermentable Sugar Extraction from Hazelnut Shells through Microwave Assisted Dilute Acid Pretreatment |
| title_sort | improvement of fermentable sugar extraction from hazelnut shells through microwave assisted dilute acid pretreatment |
| topic | microwave pretreatment severity fermentable sugar valorization |
| url | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22259 |
| work_keys_str_mv | AT sibeluzuner improvementoffermentablesugarextractionfromhazelnutshellsthroughmicrowaveassisteddiluteacidpretreatment |