Abstract：
:The potential of clover (Trifolium repens) and ryegrass (Lolium perenne) mixtures as raw materials for ethanol production was investigated. Wet oxidation, at 175, 185 or 195 degrees C during 10min at two different oxygen pressures and with either addition or no addition of sodium carbonate, was evaluated as pretreatment method for clover-ryegrass mixtures. The enzymatic hydrolysis of cellulose was significantly improved after pretreatment. The highest conversion efficiency, 93.6%, was achieved for the sample pretreated at 195 degrees C, 10min, 1.2MPa and no addition of Na(2)CO(3). For that sample, the overall glucose yield after pretreatment and hydrolysis was 75.5%. No inhibition of cellulose enzymatic conversion by the filtrates was observed. The simultaneous saccharification and fermentation of the pretreated material yielded cellulose conversions of 87.5 and 86.6%, respectively, with Saccharomyces cerevisiae and the filamentous fungus Mucor indicus, and revealed that no addition of nutrients is needed for the fermentation of clover-ryegrass hydrolysates.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Martín C,Thomsen MH,Hauggaard-Nielsen H,Belindathomsen Adoi
10.1016/j.biortech.2008.04.039subject
Has Abstractpub_date
2008-12-01 00:00:00pages
8777-82issue
18eissn
0960-8524issn
1873-2976pii
S0960-8524(08)00359-3journal_volume
99pub_type
杂志文章abstract：:Pyrolysis of industrial fatty wastes (soybean soapstock, beef tallow, and poultry industry waste) was carried out in the absence of catalysts. In all cases, organic mixtures of hydrocarbons and oxygenated compounds were obtained. These mixtures were distilled and diesel-like fractions were isolated and characterized b...
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