کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
680858 | 1459980 | 2014 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Stable high-titer n-butanol production from sucrose and sugarcane juice by Clostridium acetobutylicum JB200 in repeated batch fermentations Stable high-titer n-butanol production from sucrose and sugarcane juice by Clostridium acetobutylicum JB200 in repeated batch fermentations](/preview/png/680858.png)
• Butanol production from sugarcane juice by C. acetobutylicum JB200 was studied.
• Cells were immobilized in a fibrous bed bioreactor for ABE fermentation.
• ABE production reached 28 g/L, the highest ever achieved in fermentation with sucrose.
• This hyper butanol-producing strain was stable for 16 consecutive repeated batches.
• This process can be used to economically produce butanol in a sugarcane biorefinery.
The production of n-butanol, a widely used industrial chemical and promising transportation fuel, from abundant, low-cost substrates, such as sugarcane juice, in acetone–butanol–ethanol (ABE) fermentation was studied with Clostridium acetobutylicum JB200, a mutant with high butanol tolerance and capable of producing high-titer (>20 g/L) n-butanol from glucose. Although JB200 is a favorable host for industrial bio-butanol production, its fermentation performance with sucrose and sugarcane juice as substrates has not been well studied. In this study, the long-term n-butanol production from sucrose by JB200 was evaluated with cells immobilized in a fibrous-bed bioreactor (FBB), showing stable performance with high titer (16–20 g/L), yield (∼0.21 g/g sucrose) and productivity (∼0.32 g/L h) for 16 consecutive batches over 800 h. Sugarcane thick juice as low-cost substrate was then tested in 3 consecutive batches, which gave similar n-butanol production, demonstrating that JB200 is a robust and promising strain for industrial ABE fermentation.
Journal: Bioresource Technology - Volume 163, July 2014, Pages 172–179