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Sustainable valorization of sugarcane leaves for succinic acid and biochar production |
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| รหัสดีโอไอ | |
| Creator | Nuttaporn CHOKESAWATANAKIT |
| Title | Sustainable valorization of sugarcane leaves for succinic acid and biochar production |
| Contributor | Pasakorn JUTAKRIDSADA, Khanita KAMWILAISAK |
| Publisher | Metallurgy and Materials Science Research Institute Chulalongkorn University |
| Publication Year | 2564 |
| Journal Title | Journal of Metals, Materials and Minerals |
| Journal Vol. | 31 |
| Journal No. | 2 |
| Page no. | 46-53 |
| Keyword | Succinic acid, Biochar, Sugarcane leaves, Hydrolysis, Fermentation |
| ISSN | 8576149 |
| Abstract | The leaves of sugarcane (Saccharum officinarum) are agricultural waste that is burnt before harvesting.สThis project aims to find an alternative way to increase the value of sugarcane leaves and decrease air pollution by using the leaves as raw material to produce succinic acid and biochar. Reducing sugarsสwere extracted from the leaves by H2SO4สhydrolysis. The sugars were then fermented byสYarrowiaสlipolyticaสTBRC 4417 to produce succinic acid. The solid residue was used as the raw material for biocharสproduction by pyrolysis. The effects of pyrolysis temperature (350, 400, and 450_) and nitrogen gasสflow rate (5, 10, and 15 L_min-1) on the specific surface area of biochar were determined. The adsorptionสcapacity of mixed nitrogen, phosphorus, and potassium compound solution at various concentrationsสby biochar was also investigated. The hydrolysis condition was at 1%v/v of H2SO4, 100 g_L-1สof sugarcaneสleaves, and hydrolysis time of 60 min. The hydrolysate yielded sugar monomers at a concentration ofสca. 13.00 g_L-1สof xylose and 2.00 g_L-1สof glucose. The fermentation process of extracted reducingสsugar from sugarcane leaves byสYarrowia lipolyticaTBRC 4417 was studied at 30_ for 84 h. withส120 rpm shaking. It was found thatสYarrowia lipolyticaสTBRC 4417 produced succinic acid in glucose,สmixed glucose and xylose, and extracted reducing sugars. The maximum succinic acid yield ofส0.061 g succinic acid /g sugar consumption was obtained. For biochar production, the maximum specificสsurface area of 301.19 m2_g-1สwas found at a pyrolysis temperature of 400_ and the N2สgas flow rate ofส10 L_min-1. The maximum adsorption capacity of the mixed solution was 28.45 wt%. The adsorption capacity of biochar was N>P>K at a total concentration of 100 mg_L-1. This study demonstrates the agricultural waste's potential value as a useful feedstock for the biological generation of succinic acid and biochar. |
