This study reported a high titer gluconic acid fermentation using a typical lignocellulosic biomass corn stover as feedstock. After it was pretreated using dry dilute sulfuric acid method (DDAP) (Zhang et al, 2011 and He et al, 2014) and enzymatically. Hydrolyzed into fermentable sugars. An industrial strain A. Niger SIIM M276 was used as fermenting strain using the freshly. Prepared corn stover hydrolysate without inhibitor removal. High titer gluconic acid with the high overall yield was obtained. And the obtained sodium gluconate was satisfied when it was used as cement additive. This study provided the first high. Titer gluconic acid production case from lignocellulosic feedstock with potential of industrial applications.A. Niger SIIM M276 showed an exciting inhibitor tolerance and gluconic acid fermentability from dry dilute acid pretreated. Corn stover hydrolysate without detoxification. Increasing oxygen supply shortened lag phase and 76.67 g / L gluconic acid. With the overall yield of 94.91% was obtained from corn stover hydrolysate. The cellulosic sodium gluconate showed similar. Property as cement additive for extension of setting time and fluidity of cement mortar. The study suggested that lignocellulose. Could be an important alternative feedstock used for future industrial gluconic acid production.
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