Improve the Recovery of Fermentable Sugar from Rice Straw by Sonication and Its Mathematical Modeling
| Autor: | Sidhartha Datta, Saurav Bhattacharyya, Chiranjib Bhattacharjee, Somenath Dutta |
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| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
animal structures Materials science Waste management Materials Science (miscellaneous) General Chemical Engineering Sonication Extraction (chemistry) food and beverages Fructose Xylose Industrial and Manufacturing Engineering Reducing sugar chemistry.chemical_compound Hydrolysis chemistry Fermentation Food science Sugar |
| Zdroj: | Journal of The Institution of Engineers (India): Series E. 93:37-43 |
| ISSN: | 2250-2491 2250-2483 |
| Popis: | Rice straw is waste renewable agricultural biomass, which contains sufficient amount of fermentable sugars like glucose, galactose fructose, xylose etc. These sugars can be treated with fermentation pathway to produce ethanol. Hydrolysis of pretreated rice straw in dilute sulfuric acid was investigated at different acid concentrations (0.25–0.75 % w/v), and sonication was carried out to improve the extent of sugar extraction. The current work examines the effect of sonication on extraction of total reducing sugar (TRS) and an empirical mathematical model has been established to predict it. Effects of various operating variables of sonication, including amplitude (60–100 %), cycle (0.6–1.0), treatment time (0–15 min) have been analyzed for each acid concentration. Observation shows that on optimization of the sonication conditions (100 % amplitude, 0.8 cycle and 10 min) around 90 % improvement of TRS extraction occurs at 0.5 % (w/v) acid concentration. |
| Databáze: | OpenAIRE |
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