AbstractThe bioproduction of valuable materials using biomass sugars is attracting attention as an environmentally friendly technology. However, its ability to fulfil the enormous demand to produce fuels and chemical products is limited. With a view towards the future development of a novel bioproduction process that addresses these concerns, this study investigated the feasibility of bioproduction of valuable substances using Corynebacterium glutamicum (C. glutamicum) with a chemically synthesized non‐natural sugar solution. Cells were grown using the synthesized sugar solution as the sole carbon source and they produced lactate under oxygen‐limited conditions. It was also found that some of the sugars produced by the series of chemical reactions inhibited cell growth since prior removal of these sugars increased the cell growth rate. The results obtained in this study indicate that chemically synthesized sugars have the potential to resolve the concerns regarding future biomass sugar supply in microbial biomanufacturing.
摘要 利用生物质糖进行有价值材料的生物生产,作为一种环境友好型技术,正在引起人们的关注。然而,该技术在满足生产燃料和化工产品的巨大需求方面能力有限。为了在未来开发一种新型生物生产工艺来解决这些问题,本研究调查了利用谷氨酸棒杆菌(C. glutamicum)和化学合成的非天然糖溶液进行生物生产有价值物质的可行性。细胞以合成糖溶液为唯一碳源生长,并在限氧条件下产生乳酸盐。研究还发现,一系列化学反应产生的一些糖会抑制细胞的生长,因为事先去除这些糖会提高细胞的生长速度。本研究的结果表明,化学合成的糖类有可能解决微生物生物制造中未来生物质糖类供应的问题。