Abstract：
:In the present work, bioethanol was produced by sugar fermentation obtained from water hyacinth using a novelty hybrid method composed of steam explosion and enzymatic hydrolysis, using hydrolytic enzymes produced by solid-state fermentation and water hyacinth as substrate. The highest activity, 42 U for xylanase and 2 U for cellulase per gram of dry matter, respectively, was obtained. Steam explosion pretreatment was performed at 190 ℃ for 1, 5, and 10 min, using water hyacinth sampled from the Maria Lizamba Lagoon, the Arroyo Hondo and the Amapa River. The highest amounts of reducing sugars of water hyacinth were obtained form the samples from the lagoon (5.4 g/50 g of dry matter) after 10 min of treatment. Steamed biomass was hydrolysed using the enzymes obtained by solid-state fermentation, obtained reducing sugars (maximum 15.5 g/L); the efficiency of enzymatic hydrolysis was 0.51 g of reducing sugars per gram of water hyacinth. Finally, reducing sugars were fermented using Saccharomyces cerevisiae for conversion to ethanol, with the highest ethanol concentration (7.13 g/L) and an ethanol yield of 0.23 g/g of dry matter.
journal_name
3 Biotechjournal_title
3 Biotechauthors
Figueroa-Torres LA,Lizardi-Jiménez MA,López-Ramírez N,Varela-Santos EC,Hernández-Rosas F,Favela-Torres E,Hernández-Martínez Rdoi
10.1007/s13205-020-02426-8subject
Has Abstractpub_date
2020-10-01 00:00:00pages
432issue
10eissn
2190-572Xissn
2190-5738pii
2426journal_volume
10pub_type
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