Table 2 Bioethanol production by various organisms using raw wheat bran (RWB) and milled wheat bran (MWB) in different studies.
Substrate | Pretreatment | Enzymatic hydrolysis | Strain | Process | EtOH (g/L ) | Reference |
|---|---|---|---|---|---|---|
RWB | – | – | B. subtilis AP | CBP | 5.5 | This study |
RWB | 120 °C, 20 min 0.3% HCl in seawater | Xyn-2 | B. subtilis AP | SSF | 7.3 | This study |
RWB | – | – | Trametes hirsute | CBP | 4.3 | |
RWB | 190 °C, 10 min phosphoric acid (1.75%) | Cellic Ctec2 | Neurospora intermedia | SHF | 9 | |
RWB and MWB | 121 °C, 20 min H2SO4 (3%) | Novozymes Biomass Kit and Liquozyme | S. cerevisiae s1 or S. diastaticus | SHF | 10 | |
RWB | 121 °C, 25 min H2SO4 (1%) | Novozymes Biomass Kit | S. cerevisiae (DSM70449) and S. cerevisiae MEL2 | SHF | 12 | |
MWB | 121 °C, 60 min | α-amylase (Diastase) | A. niger (MTCC 1349) and K. marxianus (MTCC1389) | SHF and SSF | 23.1 | |
RWB | 121 °C, 15 min | – | Cotylidia pannosa and Saccharomyces cerevisiae (MTCC 174) | SHF | 4.12 |
