AI Article Synopsis
- The study explored how monosaccharides from lignocellulosic materials affect exopolysaccharide production in Mesorhizobium sp. Semia 816.
- Although using different sugars (glucose, arabinose, xylose) resulted in similar EPS yields around 3.3 g/L, variations in sugar composition were noted, particularly with rhamnose and glucuronic acid levels.
- The findings suggest that lignocellulosic hydrolysates, especially from sources like soybean hulls, could effectively serve as carbon sources for enhancing EPS production, which has potential industrial uses.
Article Abstract
Objective: The effects of monosaccharide constituents of lignocellulosic materials on exopolysaccharide (EPS) production by Mesorhizobium sp. Semia 816 were studied.
Results: According to the results, by using sugars commonly found in lignocellulosic biomass as carbon sources (glucose, arabinose and xylose), no significant differences were observed in the production of EPS, reaching 3.39 g/L, 3.33 g/L and 3.27 g/L, respectively. Differences were observed in monosaccharide composition, mainly in relation to rhamnose and glucuronic acid contents (1.8 times higher when arabinose was compared with xylose). However, the biopolymers showed no differences in relation to rheological properties, with EPS aqueous-based suspensions (1.0% w/v) presenting pseudoplastic behavior, and a slight difference in degradation temperatures. Using soybean hulls hydrolysate as carbon source, slightly higher values were obtained (3.93 g/L).
Conclusion: The results indicate the potential of the use of lignocellulosic hydrolysates containing these sugars as a source of carbon in the cultivation of Mesorhizobium sp. Semia 816 for the production of EPS with potential industrial applications.
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| http://dx.doi.org/10.1007/s10529-021-03119-9 | DOI Listing |
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