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Saccharification of water hyacinth biomass by a combination of steam explosion with enzymatic technologies for bioethanol production

Authors
  • Figueroa-Torres, L. A.1
  • Lizardi-Jiménez, M. A.2
  • López-Ramírez, N.3
  • Varela-Santos, E. C.1
  • Hernández-Rosas, F.4
  • Favela-Torres, E.3
  • Hernández-Martínez, R.5
  • 1 Instituto Tecnológico Superior de Tierra Blanca, Av. Veracruz S/N Esq., Héroes de Puebla, Colonia Pemex, Tierra Blanca, Veracruz, C.P. 95180, Mexico , Tierra Blanca (Mexico)
  • 2 CONACYT-Universidad Autónoma de San Luis Potosí, Sierra Leona 550, Lomas 2da Secc., San Luis Potosí, 78210, Mexico , San Luis Potosí (Mexico)
  • 3 Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico D.F., C.P. 09340, Mexico , Mexico D.F. (Mexico)
  • 4 Colegio de Postgraduados-Campus Córdoba, Carretera Federal Córdoba-Veracruz Km 348, Congregación Manuel León, Municipio Amatlán de los Reyes, Veracruz, 94946, Mexico , Veracruz (Mexico)
  • 5 CONACYT- Colegio de Postgraduados-Campus Córdoba, Carretera Federal Córdoba-Veracruz Km 348, Congregación Manuel León, Municipio Amatlán de los Reyes, Veracruz, 94946, Mexico , Veracruz (Mexico)
Type
Published Article
Journal
3 Biotech
Publisher
Springer International Publishing
Publication Date
Sep 15, 2020
Volume
10
Issue
10
Identifiers
DOI: 10.1007/s13205-020-02426-8
Source
Springer Nature
Keywords
License
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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.

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