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Mechano-Enzymatic Deconstruction with a New Enzymatic Cocktail to Enhance Enzymatic Hydrolysis and Bioethanol Fermentation of Two Macroalgae Species

Authors :
Barakat, Sameh Amamou
Cecilia Sambusiti
Florian Monlau
Eric Dubreucq
Abdellatif
Source :
Molecules; Volume 23; Issue 1; Pages: 174
Publication Year :
2018
Publisher :
Multidisciplinary Digital Publishing Institute, 2018.

Abstract

The aim of this study was to explore the efficiency of a mechano-enzymatic deconstruction of two macroalgae species for sugars and bioethanol production, by using a new enzymatic cocktail (Haliatase) and two types of milling modes (vibro-ball: VBM and centrifugal milling: CM). By increasing the enzymatic concentration from 3.4 to 30 g/L, the total sugars released after 72 h of hydrolysis increased (from 6.7 to 13.1 g/100 g TS and from 7.95 to 10.8 g/100 g TS for the green algae U. lactuca and the red algae G. sesquipedale, respectively). Conversely, total sugars released from G. sesquipedale increased (up to 126% and 129% after VBM and CM, respectively). The best bioethanol yield (6 geth/100 g TS) was reached after 72 h of fermentation of U. lactuca and no increase was obtained after centrifugal milling. The latter led to an enhancement of the ethanol yield of G. sesquipedale (from 2 to 4 g/100 g TS).

Details

Language :
English
ISSN :
14203049
Database :
OpenAIRE
Journal :
Molecules; Volume 23; Issue 1; Pages: 174
Accession number :
edsair.multidiscipl..a4e742ff1bdfe1b34fe153572f9e8352
Full Text :
https://doi.org/10.3390/molecules23010174