TY - JOUR
T1 - Ethanol production from xerophilic and salt-resistant Tamarix jordanis biomass
AU - Santi, G.
AU - D'Annibale, A.
AU - Eshel, A.
AU - Zilberstein, A.
AU - Crognale, S.
AU - Ruzzi, M.
AU - Valentini, R.
AU - Moresi, M.
AU - Petruccioli, M.
N1 - Funding Information:
This research work was supported by a grant from the Italian Ministry of the Environment and Territories within the Italy-Israel Partnership in the Environmental R&D sector “Harnessing the biodiversity of Mediterranean plants for mitigating the effects of climate change and desertification”. The authors are grateful to Dr. Cristina Monteverdi for the organization of the shipment of Tamarix biomass from Israel to Italy.
PY - 2014/2
Y1 - 2014/2
N2 - Three different Tamarix species, namely Tamarix aphylla, T. aphylla "Erect"-type and Tamarix jordanis, were grown in an experimental field under extreme desert conditions and irrigated with either reclaimed sewage or brackish water. Depending on both species and source of irrigation, the above-ground biomass production ranged from 18 to 36Mgha-1 in the first year. Among the three chemically characterized Tamarix species, T. jordanis was selected due to its higher cellulose content, and lower hemicellulose and phenol contents so as to outline a preliminary process flow sheet for ethanol production. This included steam-injection heating under acidic conditions (200°C; 90s; 0.5% H2SO4; 160gL-1 solid loading) using a novel lab-scale Direct Steam Injection Apparatus, enzymatic saccharification (50°C; pH 5.0; 200gL-1 solid loading; 20FPUg-1 cellulose) and subsequent ethanolic fermentation (30°C; Saccharomyces cerevisiae F-15 as the inoculum). Lab-scale fermentation runs were carried out in a 3-L stirred bioreactor in repeated-batch mode and showed an almost quantitative conversion of glucose into ethanol (0.507±0.006gg-1), thus leading to a satisfactory overall process ethanol yield of about 145L Mg-1 Tamarix biomass.
AB - Three different Tamarix species, namely Tamarix aphylla, T. aphylla "Erect"-type and Tamarix jordanis, were grown in an experimental field under extreme desert conditions and irrigated with either reclaimed sewage or brackish water. Depending on both species and source of irrigation, the above-ground biomass production ranged from 18 to 36Mgha-1 in the first year. Among the three chemically characterized Tamarix species, T. jordanis was selected due to its higher cellulose content, and lower hemicellulose and phenol contents so as to outline a preliminary process flow sheet for ethanol production. This included steam-injection heating under acidic conditions (200°C; 90s; 0.5% H2SO4; 160gL-1 solid loading) using a novel lab-scale Direct Steam Injection Apparatus, enzymatic saccharification (50°C; pH 5.0; 200gL-1 solid loading; 20FPUg-1 cellulose) and subsequent ethanolic fermentation (30°C; Saccharomyces cerevisiae F-15 as the inoculum). Lab-scale fermentation runs were carried out in a 3-L stirred bioreactor in repeated-batch mode and showed an almost quantitative conversion of glucose into ethanol (0.507±0.006gg-1), thus leading to a satisfactory overall process ethanol yield of about 145L Mg-1 Tamarix biomass.
KW - Acid-catalyzed steam explosion
KW - Enzymatic saccharification
KW - Ethanol
KW - Lignocellulose pretreatments
KW - Tamarix jordanis
UR - http://www.scopus.com/inward/record.url?scp=84893713511&partnerID=8YFLogxK
U2 - 10.1016/j.biombioe.2013.11.024
DO - 10.1016/j.biombioe.2013.11.024
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AN - SCOPUS:84893713511
SN - 0961-9534
VL - 61
SP - 73
EP - 81
JO - Biomass and Bioenergy
JF - Biomass and Bioenergy
ER -