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van der Wal, Hetty; Sperber, Bram L.H.M.; Houweling-Tan, Bwee; Bakker, Robert R.C.; Brandenburg, Willem; López-Contreras, Ana M.
Bioresource technology, January 2013, 2013, 2013-Jan, 2013-01-00, 20130101, Letnik: 128, Številka: 2013Journal Article
► Ulva lactuca was characterized as feedstock for the acetone, butanol and ethanol fermentation. ► Hydrolysates were obtained using mild pretreatment conditions and commercial cellulases. ► Ulva lactuca hydrolysate was used as substrate for fermentation by two different strains. ► Rhamnose was utilized by C. beijerinckii for production of 1,2-propanediol. Green seaweed Ulva lactuca harvested from the North Sea near Zeeland (The Netherlands) was characterized as feedstock for acetone, ethanol and ethanol fermentation. Solubilization of over 90% of sugars was achieved by hot-water treatment followed by hydrolysis using commercial cellulases. A hydrolysate was used for the production of acetone, butanol and ethanol (ABE) by Clostridium acetobutylicum and Clostridium beijerinckii. Hydrolysate-based media were fermentable without nutrient supplementation. C. beijerinckii utilized all sugars in the hydrolysate and produced ABE at high yields (0.35g ABE/g sugar consumed), while C. acetobutylicum produced mostly organic acids (acetic and butyric acids). These results demonstrate the great potential of U. lactuca as feedstock for fermentation. Interestingly, in control cultures of C. beijerinckii on rhamnose and glucose, 1,2 propanediol was the main fermentation product (9.7g/L).
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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