Detection of the biodegradability of cellulosic biomass by dielectric parameters
In biomass utilization technologies enzymatic hydrolysis and fermentation processes are widely used. Development of rapid and non-destructive measurement methods is needed to detect the enzymatic biodegradation of cellulosic biomass, for instance. In our researches the applicability of dielectric me...
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| Format: | Book part |
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University of Szeged
Szeged
2021
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| Series: | Proceedings of the International Symposium on Analytical and Environmental Problems
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| Kulcsszavak: | Biomassza hasznosítása, Környezetkémia |
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| Online Access: | http://acta.bibl.u-szeged.hu/75906 |
| Summary: | In biomass utilization technologies enzymatic hydrolysis and fermentation processes are widely used. Development of rapid and non-destructive measurement methods is needed to detect the enzymatic biodegradation of cellulosic biomass, for instance. In our researches the applicability of dielectric measurement methods was investigated for the monitoring the efficiency of enzymatic hydrolysis of Cobex (corn cob) biomass. The dielectric behavior of the Cobex suspensions and fermentation broth was characterized by the dielectric constant and dielectric loss factor, measured at a frequency range from 200 to 2400 MHz. The dielectric parameters were also determined during the ethanol fermentation process of the preliminary hydrolyzed biomass. Our results verified, that the dielectric parameters in the frequency range of 200-100 MHz are sensitive to the chemical changes occurred during the enzymatic hydrolysis of cellulose contented biomass, and, as well as to the presence of ethanol component in the fermentation broth. There was found good correlation of dielectric constant (at frequency range from 300 to 900 MHz) with the concentration of reducing sugars (produced in enzymatic hydrolysis), and the dielectric constant and dielectric loss factor (determined at the frequency of 300 MHz) with the ethanol concentration. |
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| Physical Description: | 5-9 |
| ISBN: | 978-963-306-835-9 |