Succinic acid (SA) is an important building-block chemical that serves as a precursor for a wide variety of chemicals and materials with significant market value. Its production from renewable sources has attracted considerable attention in recent years. In this work, the suitability of industrial sorghum grain as a feedstock for SA production, using DSM 22257 and DSM 22022, was studied. The addition of phosphates and salts (10 % v/v), yeast extract (6 g/L), and corn steep liquor (10 g/L) to the industrial sorghum-based medium was necessary for achieving the best results for both strains. showed better fermentation kinetics and higher SA concentration than in all fermentations, reaching 28.8 g/L at 24 h for and 21.7 g/L at 48 h for When the fermentation was scaled-up to a bioreactor, showed no significant differences when using MgCO or CO without and with pH control, respectively. These results suggest that the production of SA using has significant potential for CO sequestration, contributing to the reduction of atmospheric CO.

中文翻译：

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高粱籽粒生产琥珀酸：Actinobacillus succinogenes DSM 22257 和 Basfia succiniciproductns DSM 22022 菌株的比较研究


琥珀酸 (SA) 是一种重要的基础化学品，可作为多种化学品和材料的前体，具有巨大的市场价值。近年来，其可再生资源生产引起了广泛关注。在这项工作中，使用 DSM 22257 和 DSM 22022 研究了工业高粱谷物作为 SA 生产原料的适用性。为了使两种菌株获得最佳结果，必须向工业高粱培养基中添加磷酸盐和盐 (10 % v/v)、酵母提取物 (6 g/L) 和玉米浆 (10 g/L) 。与所有发酵相比，显示出更好的发酵动力学和更高的 SA 浓度，在 24 小时时达到 28.8 g/L，在 48 小时时达到 21.7 g/L。 当发酵扩大到生物反应器时，使用 MgCO 或分别是不带 pH 控制和带 pH 控制的 CO。这些结果表明，使用SA生产具有巨大的二氧化碳封存潜力，有助于减少大气中的二氧化碳。