Anaerobic mixed-culture fermentation of aqueous ammonia-treated sugarcane bagasse in consolidated bioprocessing

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Zhihong Fu ◽  
Mark T. Holtzapple
2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Jun Huang ◽  
Dong Chen ◽  
Yutuo Wei ◽  
Qingyan Wang ◽  
Zhenchong Li ◽  
...  

Trichoderma reeseican be considered as a candidate for consolidated bioprocessing (CBP) microorganism. However, its ethanol yield needs to be improved significantly. Here the ethanol production ofT. reeseiCICC 40360 was improved by genome shuffling while simultaneously enhancing the ethanol resistance. The initial mutant population was generated by nitrosoguanidine treatment of the spores, and an improved population producing more than fivefold ethanol than wild type was obtained by genome shuffling. The results show that the shuffled strain HJ48 can efficiently convert lignocellulosic sugars to ethanol under aerobic conditions. Furthermore, it was able to produce ethanol directly from sugarcane bagasse, demonstrating that the shuffled strain HJ48 is a suitable microorganism for consolidated bioprocessing.


Author(s):  
Siddhartha Pandey ◽  
Nitin Kumar Singh ◽  
Tara Chand Yadav ◽  
Ankur Kumar Bansal ◽  
Arti Thanki ◽  
...  

Processes ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 404 ◽  
Author(s):  
Jiangnan Yu ◽  
Jialin Liao ◽  
Zhenxing Huang ◽  
Peng Wu ◽  
Mingxing Zhao ◽  
...  

The bioproduction of caproate from organic waste by anaerobic mixed culture is a very attractive technology for upgrading low-grade biomass to a high-value resource. However, the caproate production process is markedly restricted by the feedback inhibition of caproate. In this study, four types of anion-exchange resin were investigated for their enhancing capability in caproate fermentation of anaerobic mixed culture. The strong base anion-exchange resin D201 showed the highest adsorption capacity (62 mg/g), selectivity (7.50), and desorption efficiency (88.2%) for caproate among the test resins. Subsequently, the optimal desorption temperature and NaOH concentration of eluent for D201 were determined. The adsorption and desorption efficiency of D201 remained stable during eight rounds of the adsorption–desorption cycle, indicating a satisfactory reusability of D201. Finally, performances of caproate fermentation with and without resin adsorption for carboxylate were evaluated. The results demonstrated that the final concentration of caproate was improved from 12.43 ± 0.29 g/L (without adsorption) to 17.30 ± 0.13 g/L (with adsorption) and the maximum caproate production rate was improved from 0.60 ± 0.01 g/L/d to 2.03 ± 0.02 g/L/d. In the group with adsorption, the cumulative caproate production was increased to 29.10 ± 0.33 g/L broth, which was 134% higher than that of the control group. Therefore, this study provides effective approaches to enhance caproate production.


2020 ◽  
Vol 314-315 ◽  
pp. 14-24
Author(s):  
Lisa König ◽  
Sabine Szczesny ◽  
Simone Brixius-Anderko ◽  
Rita Bernhardt ◽  
Frank Hannemann

2019 ◽  
Vol 117 (1) ◽  
pp. 73-84 ◽  
Author(s):  
Alberte Regueira ◽  
Juan M. Lema ◽  
Marta Carballa ◽  
Miguel Mauricio‐Iglesias

2019 ◽  
Vol 7 ◽  
pp. 100138 ◽  
Author(s):  
Nisha Singh ◽  
Anshu S. Mathur ◽  
Colin J. Barrow ◽  
Deepak K. Tuli ◽  
Ravi P. Gupta ◽  
...  

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