TY - JOUR
T1 - A perspective on galactose-based fermentative hydrogen production from macroalgal biomass
T2 - Trends and opportunities
AU - Kim, Sang Hyoun
AU - Mudhoo, Ackmez
AU - Pugazhendhi, Arivalagan
AU - Saratale, Rijuta Ganesh
AU - Surroop, Dinesh
AU - Jeetah, Pratima
AU - Park, Jeong Hoon
AU - Saratale, Ganesh Dattatraya
AU - Kumar, Gopalakrishnan
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/5
Y1 - 2019/5
N2 - This review analyses the relevant studies which focused on hydrogen synthesis by dark fermentation of galactose from macroalgal biomass by discussing the inoculum-related pretreatments, batch fermentation and inhibition, continuous fermentation systems, bioreactor designs for continuous operation and ionic liquid-assisted catalysis. The potential for process development is also revisited and the challenges towards suppressing glucose dominance over a galactose-based hydrogen production system are presented. The key challenges in the pretreatment process aiming to achieve a maximum recovery of upgradable (fermentable) sugars from the hydrolysates and promoting the concomitant detoxification of the hydrolysates have also been highlighted. The research avenues for bioprocess intensification connected to enhance selective sugar recovery and effective detoxification constitute the critical steps to develop future red macroalgae-derived galactose-based robust biohydrogen production system.
AB - This review analyses the relevant studies which focused on hydrogen synthesis by dark fermentation of galactose from macroalgal biomass by discussing the inoculum-related pretreatments, batch fermentation and inhibition, continuous fermentation systems, bioreactor designs for continuous operation and ionic liquid-assisted catalysis. The potential for process development is also revisited and the challenges towards suppressing glucose dominance over a galactose-based hydrogen production system are presented. The key challenges in the pretreatment process aiming to achieve a maximum recovery of upgradable (fermentable) sugars from the hydrolysates and promoting the concomitant detoxification of the hydrolysates have also been highlighted. The research avenues for bioprocess intensification connected to enhance selective sugar recovery and effective detoxification constitute the critical steps to develop future red macroalgae-derived galactose-based robust biohydrogen production system.
KW - Algal biomass
KW - Galactose
KW - Hydrogen
KW - Pretreatment
KW - Process optimization
UR - http://www.scopus.com/inward/record.url?scp=85061577846&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2019.02.050
DO - 10.1016/j.biortech.2019.02.050
M3 - Review article
C2 - 30777703
AN - SCOPUS:85061577846
SN - 0960-8524
VL - 280
SP - 447
EP - 458
JO - Bioresource Technology
JF - Bioresource Technology
ER -