气体和有机酸也由糖化菌发酵。
Gases and organic acids are also produced by saccharolytic fermentation.
这些改良的大肠杆菌发酵生物质中所含的糖类以生合成异戊二烯，并以气体形式释放出来。
The modified organism ferments sugars in the biomass to produce isoprene, in such a way that it bubbles out as a gas.
肠内气体主要由结肠内未消化的食物发酵产生，例如植物纤维。
Intestinal gas is typically caused by the fermentation of undigested food, such as plant fiber, in the colon.
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