Enzymatic hydrolysis of corncob and ethanol production from cellulosic hydrolysate

Chen, Ming; Xia, Liming; Xue, Pei-Jian

doi:10.1016/j.ibiod.2006.07.011

Cited by 207 publications

(106 citation statements)

References 13 publications

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“…It had over 22% higher enzymatic digestibility and more than 6% higher reducing sugar concentration than the batch process during hydrolysis of high solidliquid ratio of 1: 0.5 (w/w). Our results are also in accordance with the earlier work of Chen et al, where in the enzymatic saccharification of corncob high hydrolysis yield and reducing sugar concentration was achieved through fed batch process (Chen et al 2007). In fed batch process, solid was added after the previous solid was completed or partially liquefied, which improved the mass and heat transfer significantly and generated high enzymatic digestibility and reducing sugar concentration.…”

Section: Fed Batch Enzymatic Hydrolysissupporting

confidence: 93%

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Yan

Yao

et al. 2012

Braz. arch. biol. technol.

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Section: Fed Batch Enzymatic Hydrolysissupporting

confidence: 93%

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Yan

Yao

et al. 2012

Braz. arch. biol. technol.

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“…Ethanol production by FBP-SSF at 20% solid could produce ethanol of 35.76 g/L or 4.6% (v/v), which was close to benchmark level (above 4.0% (v/v)). This may be economically viable to produce in large scale [5,16,17]. The result showed that ethanol production by FBP-SSF was a good manner for cellulosic ethanol production.…”

Section: Effect Of Commercial Cellulase Enzymes On Ethanol Productionmentioning

confidence: 95%

“…Zhu et al [15] used liquefaction at 50 °C for 120 h before ethanol production by SSF. Although it could give high ethanol concentration over the benchmark level (above 4.0% (v/v)) [5,16,17], it might be economically viable to produce in large scale. However, almost of material pretreatment was used in high severity condition, especially high temperature, such as Chu et al [9] pretreated corn stover at 190 °C for 3 min, Zhu et al [15] pretreated aspen at 170 °C for 10 min, and Albuquerque-Wanderley et al [18] pretreated sugarcane bagasse at 200 °C for 7 min.…”

Section: Effect Of Commercial Cellulase Enzymes On Ethanol Productionmentioning

confidence: 99%

Effect of Commercial Cellulase Enzymes on Ethanol Production from Pretreated Rice Straw at High Solid Loading

Srinorakutara¹,

Subkaree²,

Boonvitthya³

et al. 2015

JFSE

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Effect of commercial cellulose enzymes was investigated by batch enzymatic hydrolysis at 15.0% (w/v) solid. It was found that the best commercial cellulose enzyme was Cellic ® CTec comparing to Accellerase 1000 TM and Accelerase 1500 TM . The Cellic ® CTec gave the highest reducing sugar concentration and rice straw conversion. Moreover, when the hydrolysate obtained from hydrolysis using Cellic ® CTec was fermented by Saccharomyces cerevisiae TISTR 5596, it would give the highest ethanol. In this study, the Cellic ® CTec was used for fed-batch prehydrolysis prior to ethanol production by simultaneous saccharification and fermentation (SSF) way at 20% (w/v) solid loading. It could produce 35.76 g/L or 4.6% (v/v) of ethanol concentration and 83.67 L/ton dry matter (DM) of yield.

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“…5C). Sornvoraveat and Kongkiattikajorn (2010) obtained a 96.07% ethanol yield from fermentation of enzymatic hydrolyzate of water hyacinth and Chen et al (2007) obtained a 94.0% yield from corncob enzymatic hydrolyzate in 18.0 h, by using Saccharomyces cerevisiae. Nigam (2002) and Magdum et al, (2012) reported 18.0 g/L and 19.2g/L of ethanol from the acid hydrolyzate of water hyacinth leaves, respectively.…”

Section: Ethanol Productionmentioning

confidence: 99%

Production of fermentable sugars by combined chemo-enzymatic hydrolysis of cellulosic material for bioethanol production

Muhammad

Adnan

Bokhari

et al. 2014

Braz. J. Chem. Eng.

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-To change the recalcitrant nature of the lignocellulosic material for maximum hydrolysis yield, a comprehensive study was done by using sulphuric acid as an exclusive catalyst for the pretreatment process. The enzymatic digestibility of the biomass [Water Hyacinth: Eichhornia crassipes] after pretreatment was determined by measuring the hydrolysis yield of the pretreated material obtained from twenty four different pretreatment conditions. These included different concentrations of sulphuric acid (0.0, 1.0, 2.0 and 3.0%), at two different temperatures (108 and 121 °C) for different residence times (1.0, 2.0 and 3.0h).The highest reducing sugar yield (36.65 g/L) from enzymatic hydrolysis was obtained when plant material was pretreated at 121 °C for 1.0 h residence time using 3.0% (v/v) sulphuric acid and at 1:10 (w/v) solid to liquid ratio. The total reducing sugars obtained from the two-stage process (pretreatment + enzymatic hydrolysis) was 69.6g/L. The resulting sugars were fermented into ethanol by using Saccharomyces cerevisiae. The ethanol yield from the enzymatic hydrolyzate was 95.2% of the theoretical yield (0.51g/g glucose), as determined by GS-MS, and nearly 100% since no reducing sugars were detected in the fermenting media by TLC and DNS analysis.

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Enzymatic hydrolysis of corncob and ethanol production from cellulosic hydrolysate

Cited by 207 publications

References 13 publications

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Fed batch enzymatic saccharification of food waste improves the sugar concentration in the hydrolysates and eventually the ethanol fermentation by Saccharomyces cerevisiae H058

Effect of Commercial Cellulase Enzymes on Ethanol Production from Pretreated Rice Straw at High Solid Loading

Production of fermentable sugars by combined chemo-enzymatic hydrolysis of cellulosic material for bioethanol production

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