Fig. 5
From: Increasing the economic value of lignocellulosic stillage through medium-chain fatty acid production
Time-dependent changes of xylose and lactic acid concentrations. Lactic and xylose were measured after adding a spike feed of 25Â mL stillage to the reactor at 252Â days of operation. As xylose is removed from the media, lactic acid accumulates at approximately 1Â mol of lactic acid per mol of xylose consumed. Extracellular lactic acid begins to decrease 6Â h after the addition of stillage