1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
1-allyl-3-methylimidazolium chloride pretreatment of seaweed industrial waste for bioethanol conversion
Rent:
Rent this article for
USD
10.1063/1.4830267
/content/aip/journal/jrse/5/6/10.1063/1.4830267
http://aip.metastore.ingenta.com/content/aip/journal/jrse/5/6/10.1063/1.4830267

Figures

Image of FIG. 1.
FIG. 1.

The effect of incubation temperature in AMIMCl pretreatment on glucose yield of FR. FR was kept at different temperatures (60 °C, ; 70 °C, ; 80 °C, ; 90 °C, ) for 2 h with the same solid-to-AMIMCl ratio (1:10, w/w), then wasapplied for enzymatic hydrolysis by cellulase (7.5 FPU/g cellulose) alone (a) or by complex enzyme of cellulase (7.5FPU/g cellulose) and cellobiase (40 U/g cellulose) (b). Then unpretreated sample ( ) was hydrolyzed as the same way mentioned above, served as control.

Image of FIG. 2.
FIG. 2.

The effect of incubation time in AMIMCl pretreatment on glucose yield of FR. FR was kept for different times (0 h, ; 1 h, ; 1.5 h, ; 2 h, ) at 80 °C with the same solid-to-AMIMCl ratio (1:10, w/w), then was applied for enzymatic hydrolysis by cellulase (7.5 FPU/g substrate) alone (a) or by complex enzyme of cellulase (7.5 FPU/g cellulose) and cellobiase (40 U/g cellulose) (b).

Image of FIG. 3.
FIG. 3.

Effects of different solid-to-AMIMCl ratios (w/w) of AMIMCl pretreatment on glucose yield of FR. FR was kept at different solid-to-AMIMCl ratios (1:5, ; 1:10, ; 1:15, ) at 80 °C for 2 h, then was applied for enzymatic hydrolysis by cellulase (7.5 FPU/g cellulose) alone (a) or by complex enzyme of cellulase (7.5 FPU/g cellulose) and cellobiase (40U/g cellulose) (b). Then unpretreated sample ( ) was enzymatic hydrolyzed as the same way mentioned above, served as control.

Image of FIG. 4.
FIG. 4.

Glucose yields in enzymatic hydrolysis ( : cellulase, 7.5 FPU/g cellulose; : cellulase, 7.5 FPU/g cellulose, and cellobiase, 40 U/g cellulose; : cellulase, 7.5 FPU/g cellulose, and cellobiase, 80 U/g cellulose) using three types of FR (A, B, or C). B: FR was pretreated by 0.1% (w/w) sulfuric acid at 121 °C for 1 h; C: FR was pretreated by AMIMCl at 80 °C at the solid-to-AMIMCl ratio of 1:10 (w/w) for 2 h; A: FR was without pretreatment, served as control.

Image of FIG. 5.
FIG. 5.

SEM images of FR. (A) (D) (G) represent FR without pretreatment 200×, 500×, and 3000×, respectively; (B) (E) (H) represent FR pretreated by dilute sulfuric acid 200×, 500×, and 3000×, respectively; (C), (F), and (I) represent FR pretreated by AMIMCl 200×, 500×, and 3000×, respectively.

Image of FIG. 6.
FIG. 6.

XRD spectra of FR by different pretreatments: (A) represents unpretreated FR; (B) represents FR by dilute sulfuric acid pretreatment; (C) represents FR by AMIMCl pretreatment.

Image of FIG. 7.
FIG. 7.

Effects on SSF of FR with different pretreatment methods. Samples with AMIMCl pretreatment, dilute sulfuric acid pretreatment, and no pretreatment were enzymatic hydrolyzed by complex enzyme of cellulase (7.5 FPU/g) and cellobiase (40 U/g). The yeast was inoculated at the beginning of enzymatic hydrolysis. The glucose concentrations (◇AMIMCl pretreatment, ◻ dilute sulfuric acid pretreatment, and △ no pretreatment) and the ethanol yields (◆ AMIMCl pretreatment, ▪ dilute sulfuric acid pretreatment, and ▲ no pretreatment) were monitored until 96 h. The ethanol yield was calculated by the relative ratio of the ethanol mass to cellulose mass in FR as formula (2).

Tables

Generic image for table
Table I.

Characteristics of AMIMCl pretreatment patterns.

Loading

Article metrics loading...

/content/aip/journal/jrse/5/6/10.1063/1.4830267
2013-11-22
2014-04-20
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 1-allyl-3-methylimidazolium chloride pretreatment of seaweed industrial waste for bioethanol conversion
http://aip.metastore.ingenta.com/content/aip/journal/jrse/5/6/10.1063/1.4830267
10.1063/1.4830267
SEARCH_EXPAND_ITEM