Abstract：
:A pretreatment process using alkali/urea solution at low temperature was proposed for enhanced cellulosic biohydrogen production. Different alkaline solutions with both presence and absence of urea were studied. It can be found NaOH/Urea pretreatment exhibited excellent pretreatment performance at temperature from -8 °C to -20 °C. Microscopic structure observation combined FTIR analysis further demonstrated that NaOH/Urea pretreatment at low temperature could effectively disrupt the structure of rice straw and made more cellulose and hemicellulose available. The pretreated materials were then subjected for biohydrogen production by Thermoanaerobacterium thermosaccharolyticum M18. The maximum hydrogen production and energy conversion efficiency of 22.08 mmol/L and 9.76% were obtained from NaOH/Urea pretreated rice straw at low temperature. The results were 161.92% and 56.91% higher than the counterpart without pretreatment, respectively. This study provides a new direction to pretreat lignocellulose efficiently for enhanced biohydrogen production at cold climate region.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Dong L,Cao G,Zhao L,Liu B,Ren Ndoi
10.1016/j.biortech.2018.05.055subject
Has Abstractpub_date
2018-11-01 00:00:00pages
71-76eissn
0960-8524issn
1873-2976pii
S0960-8524(18)30715-6journal_volume
267pub_type
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