ISSN:
1476-5535
Keywords:
Keywords: Zymobacter palmae; mannitol; ethanol; biofuel; seaweed
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Extracts from brown seaweeds could possibly be fermented to ethanol, particularly seaweeds harvested in the autumn, which contain high levels of easily extractable laminaran and mannitol. Few microorganisms are able to utilise mannitol as a substrate for ethanol production and Zymobacter palmae was tested for this purpose. Bacterial growth as well as ethanol yield depended on the amount of oxygen present. Strictly anaerobic growth on mannitol was not observed. At excessive aeration, a change in the fermentation pattern was observed with high production of acetate and propionate. Under oxygen-limiting conditions, the bacteria grew and produced ethanol in a synthetic mannitol medium with a yield of 0.38 g ethanol (g mannitol)−1. Z. palmae was also successfully applied for fermentation of mannitol from Laminaria hyperborea extracts. Journal of Industrial Microbiology & Biotechnology (2000) 24, 51–57.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/sj.jim.2900771
Permalink
