In-Situ recovery of ethanol from fermentation broth by hydrophobic adsorbents

1991 ◽  
Vol 11 (4) ◽  
pp. 353-358 ◽  
Author(s):  
W. D. Einicke ◽  
B. Gläser ◽  
R. Schöoullner
Keyword(s):  
Fermentation Broth ◽  
Hydrophobic Adsorbents ◽  
In Situ Recovery

scholarly journals Simultaneous lipid biosynthesis and recovery for oleaginous yeast Yarrowia lipolytica

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Pratik Prashant Pawar ◽  
Annamma Anil Odaneth ◽  
Rajeshkumar Natwarlal Vadgama ◽  
Arvind Mallinath Lali
Keyword(s):  
Yarrowia Lipolytica ◽  
Oil Recovery ◽  
Oleaginous Yeast ◽  
Fermentation Broth ◽  
Continuous Production ◽  
Oil Production ◽  
Biofuel Production ◽  
Oil Yield ◽  
Microbial Oil

Abstract Background Recent trends in bioprocessing have underlined the significance of lignocellulosic biomass conversions for biofuel production. These conversions demand at least 90% energy upgradation of cellulosic sugars to generate renewable drop-in biofuel precursors (Heff/C ~ 2). Chemical methods fail to achieve this without substantial loss of carbon; whereas, oleaginous biological systems propose a greener upgradation route by producing oil from sugars with 30% theoretical yields. However, these oleaginous systems cannot compete with the commercial volumes of vegetable oils in terms of overall oil yields and productivities. One of the significant challenges in the commercial exploitation of these microbial oils lies in the inefficient recovery of the produced oil. This issue has been addressed using highly selective oil capturing agents (OCA), which allow a concomitant microbial oil production and in situ oil recovery process. Results Adsorbent-based oil capturing agents were employed for simultaneous in situ oil recovery in the fermentative production broths. Yarrowia lipolytica, a model oleaginous yeast, was milked incessantly for oil production over 380 h in a media comprising of glucose as a sole carbon and nutrient source. This was achieved by continuous online capture of extracellular oil from the aqueous media and also the cell surface, by fluidizing the fermentation broth over an adsorbent bed of oil capturing agents (OCA). A consistent oil yield of 0.33 g per g of glucose consumed, corresponding to theoretical oil yield over glucose, was achieved using this approach. While the incorporation of the OCA increased the oil content up to 89% with complete substrate consumptions, it also caused an overall process integration. Conclusion The nondisruptive oil capture mediated by an OCA helped in accomplishing a trade-off between microbial oil production and its recovery. This strategy helped in realizing theoretically efficient sugar-to-oil bioconversions in a continuous production process. The process, therefore, endorses a sustainable production of molecular drop-in equivalents through oleaginous yeasts, representing as an absolute microbial oil factory.

scholarly journals In-Situ Recovery of Critical Technology Elements

2016 ◽  
Vol 138 ◽  
pp. 248-257 ◽  
Author(s):  
Michael Haschke ◽  
Jamshid Ahmadian ◽  
Lisza Zeidler ◽  
Thomas Hubrig
Keyword(s):  
Critical Technology ◽  
In Situ Recovery

scholarly journals In situ recovery of uranium — the microbial influence

2014 ◽  
Vol 150 ◽  
pp. 236-244 ◽  
Author(s):  
Carla M. Zammit ◽  
Joël Brugger ◽  
Gordon Southam ◽  
Frank Reith
Keyword(s):  
In Situ Recovery
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