Ethanol production from water hyacinth (Eichhornia crassipes) hydrolysate by hyper-thermal acid hydrolysis, enzymatic saccharification and yeasts adapted to high concentration of xylose

2019 ◽  
Vol 42 (8) ◽  
pp. 1367-1374 ◽  
Author(s):  
InYung Sunwoo ◽  
Jeong Eun Kwon ◽  
Trung Hau Nguyen ◽  
Gwi-Tack Jeong ◽  
Sung-Koo Kim
Keyword(s):  
Ethanol Production ◽  
Acid Hydrolysis ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Enzymatic Saccharification ◽  
High Concentration ◽  
Thermal Acid Hydrolysis

scholarly journals Ethanol production by Escherichia coli from detoxified lignocellulosic teak wood hydrolysates with high concentration of phenolic compounds

2021 ◽  
Author(s):  
Estefanía Sierra-Ibarra ◽  
Jorge Alcaraz-Cienfuegos ◽  
Alejandra Vargas-Tah ◽  
Alberto Rosas-Aburto ◽  
Ángeles Valdivia-López ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Phenolic Compounds ◽  
Ethanol Production ◽  
Enzymatic Saccharification ◽  
Coli Strain ◽  
High Concentration ◽  
E Coli ◽  
Thermochemical Pretreatment ◽  
Teak Wood ◽  
Ethanologenic Escherichia Coli

Abstract Teak wood residues were subjected to thermochemical pretreatment, enzymatic saccharification, and detoxification to obtain syrups with a high concentration of fermentable sugars for ethanol production with the ethanologenic Escherichia coli strain MS04. Teak is a hardwood, and thus a robust deconstructive pretreatment was applied followed by enzymatic saccharification. The resulting syrup contained 60 g L−1 glucose, 18 g L−1 xylose, 6 g L−1 acetate, less than 0.1 g L−1 of total furans, and 12 g L−1 of soluble phenolic compounds (SPC). This concentration of SPC is toxic to E. coli, and thus two detoxification strategies were assayed: 1) treatment with Coriolopsis gallica laccase followed by addition of activated carbon and 2) overliming with Ca(OH)2. These reduced the phenolic compounds by 40 and 76%, respectively. The detoxified syrups were centrifuged and fermented with E. coli MS04. Cultivation with the over-limed hydrolysate showed a 60% higher volumetric productivity (0.45 gETOH L−1 h−1). The bioethanol/sugars yield was over 90% in both strategies.

Enhancement of Ethanol Production via Hyper Thermal Acid Hydrolysis and Co-Fermentation Using Waste Seaweed from Gwangalli Beach, Busan, Korea

2018 ◽  
Vol 28 (3) ◽  
pp. 401-408 ◽  
Author(s):  
In Yung Sunwoo ◽  
Trung Hau Nguyen ◽  
Pailin Sukwong ◽  
Gwi-Teak Jeong ◽  
Sung-Koo Kim
Keyword(s):  
Ethanol Production ◽  
Acid Hydrolysis ◽  
Thermal Acid Hydrolysis

scholarly journals Effect of physical pretreatment on dilute acid hydrolysis of water hyacinth (Eichhornia crassipes)

2011 ◽  
Vol 102 (8) ◽  
pp. 5193-5199 ◽  
Author(s):  
M.Y. Harun ◽  
A.B. Dayang Radiah ◽  
Z. Zainal Abidin ◽  
R. Yunus
Keyword(s):  
Acid Hydrolysis ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Dilute Acid ◽  
Dilute Acid Hydrolysis ◽  
Hydrolysis Of

scholarly journals Phytoremediation of iron in ex-sand mining waters by water hyacinth (Eichhornia crassipes)

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Qadar Hasani ◽  
NIKEN T.M. PRATIWI ◽  
YUSLI WARDIATNO ◽  
HEFNI EFFENDI ◽  
ARTHO NUGRAHA MARTIN ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Hyacinth ◽  
Water Surface ◽  
Eichhornia Crassipes ◽  
Surface Coverage ◽  
Translocation Factor ◽  
Mining Area ◽  
Sand Mining ◽  
High Concentration ◽  
Water Hyacinths

Hasani Q, Pratiwi NTM, Wardiatno Y, Effendi H, Martin AN, Efendi E, Pirdaus P. 2020. Phytoremediation of Iron (Fe) in Ex-sand Mining Waters by Water Hyacinth (Eichhornia crassipes (Mart.) Solms). The high concentration of iron (Fe) has allegedly caused the water quality of puddles at sand mining area. The poor water quality, in which high contentrations of iron will to a reduction in aquaculture production. This study verified the ability of water hyacinths (Eichhornia crassipes (Mart.) Solms.)) as a phytoremediation agent for iron (Fe) concentration in water at the sand mining area, in East Lampung Regency, Indonesia. The study was carried out with 3 treatments and 3 replication each, including the treatment of (i) 25% water surface coverage, (ii) 50% water surface coverage, and (iii) 75% water surface coverage of water hyacinth. Measurement of Fe concentrations, bioconcentration factor (BCF) and translocation factor (TF) once a week, until Fe concentrations in water are adequate for aquaculture. This was achieved for 21 days. The results showed that the highest percentage reduction of Fe (97.49%) was observed at water hyacinth cover area 50%. The highest value of BCF was 2385.51, while the highest TF was 1.14 in stems and 1.02 in leaves. The results of this study open up opportunities for use water in ex-sand mining areas for aquaculture by the community and its management by the Government of East Lampung Regency, Lampung, Indonesia.

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