Continuous acetic acid fermentation in a packed-bed bioreactor was conducted using ceramic or charcoal pellet carriers. Continuous fermentation was successfully conducted using a synthetic medium containing 31.6g/l ethanol in both cases. Using the ceramic carrier, a maximum acetic acid productivity of 2.07 g/1/hr was obtained at the dilution rate of 0.08 hl-1,while using charcoal pellets, the maximum acetic acid productivity reached 5.48 g/1/hr at a dilution rate of 0.16 hr-1. From these results, it was determined that charcoal pellets are preferable to ceramic carriers as packed media for vinegar production.
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机译:使用陶瓷或木炭颗粒载体在填充床生物反应器中进行连续乙酸发酵。在两种情况下,均使用含有31.6g / l乙醇的合成培养基成功进行了连续发酵。使用陶瓷载体,在0.08 hl-1的稀释率下,最大乙酸产量为2.07 g / 1 / hr,而使用木炭颗粒,在稀释率下,最大乙酸产量达到5.48 g / 1 / hr。 0.16 hr-1。从这些结果可以确定,木炭颗粒比陶瓷载体更适合作为醋生产的包装介质。
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