Effect of Alkali Pretreatment on the Structural Properties and Enzymatic Hydrolysis of Corn Cob

One of the crucial steps in the enzymatic hydrolysis of biomass is pretreatment. We investigated the applicability of a hybrid pretreatment method, This involved acid treatment followed by alkali before the production of fermentable sugars from cassava stem. The substrate was initially treated with acid (1% oxalic acid at 100 °C for 2 h), followed by treatment with a 10% NaOH–urea mixture (by mixing 5 g each of NaOH and urea in 100 mL of water) at 100 °C for 1 h. A cellulose recovery of 98.55% was obtained with the acid-alkali pretreatment method.

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Enzymatic Hydrolysis of Cellulose: Effects of Structural Properties of Cellulose on Hydrolysis Kinetics

Enzyme Engineering ◽

10.1007/978-1-4615-9290-7_80 ◽

1982 ◽

pp. 325-333 ◽

Cited By ~ 6

Author(s):

D. D. Y. Ryu ◽

S. B. Lee

Keyword(s):

Enzymatic Hydrolysis ◽

Structural Properties ◽

Hydrolysis Kinetics ◽

Enzymatic Hydrolysis Of Cellulose ◽

Hydrolysis Of Cellulose ◽

Hydrolysis Of

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Laboratory scale optimization of alkali pretreatment for improving enzymatic hydrolysis of sweet sorghum bagasse

Industrial Crops and Products ◽

10.1016/j.indcrop.2015.05.044 ◽

2015 ◽

Vol 74 ◽

pp. 977-986 ◽

Cited By ~ 27

Author(s):

Arosha Loku Umagiliyage ◽

Ruplal Choudhary ◽

Yanna Liang ◽

John Haddock ◽

Dennis G. Watson

Keyword(s):

Enzymatic Hydrolysis ◽

Sweet Sorghum ◽

Laboratory Scale ◽

Sweet Sorghum Bagasse ◽

Alkali Pretreatment ◽

Sorghum Bagasse ◽

Scale Optimization ◽

Hydrolysis Of

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Structural properties and enzymatic hydrolysis of rice straw

Process Biochemistry ◽

10.1016/j.procbio.2005.12.022 ◽

2006 ◽

Vol 41 (6) ◽

pp. 1261-1264 ◽

Cited By ~ 45

Author(s):

Shengying Jin ◽

Hongzhang Chen

Keyword(s):

Enzymatic Hydrolysis ◽

Structural Properties ◽

Rice Straw ◽

Hydrolysis Of

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Influence of high-pressure homogenization on structural properties and enzymatic hydrolysis of milk proteins

LWT ◽

10.1016/j.lwt.2020.109657 ◽

2020 ◽

Vol 130 ◽

pp. 109657 ◽

Cited By ~ 1

Author(s):

D. Carullo ◽

F. Donsì ◽

G. Ferrari

Keyword(s):

High Pressure ◽

Enzymatic Hydrolysis ◽

Structural Properties ◽

Milk Proteins ◽

High Pressure Homogenization ◽

Hydrolysis Of

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Alkali Pretreatment and Enzymatic Hydrolysis of Australian Timber Mill Sawdust for Biofuel Production

Journal of Renewable Energy ◽

10.1155/2015/284250 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 5

Author(s):

Raymond Martin Trevorah ◽

Maazuza Z. Othman

Keyword(s):

Enzymatic Hydrolysis ◽

Simultaneous Saccharification And Fermentation ◽

Glucose Production ◽

Biofuel Production ◽

Alkali Pretreatment ◽

Ethanol Yields ◽

The Impact ◽

Hydrolysis Of ◽

Potential Use ◽

Simultaneous Saccharification

This study investigated the potential use of alkali pretreatment of sawdust from Australian timber mills to produce bioethanol. Sawdust was treated using 3–10% w/w NaOH at temperatures of 60, 121, and −20°C. Two pathways of production were trialled to see the impact on the bioethanol potential, enzymatic hydrolysis for glucose production, and simultaneous saccharification and fermentation (SSF) for ethanol production. The maximum yields obtained were at 121°C and −20°C using 7% NaOH, with 29.3% and 30.6% ethanol yields after 0.5 and 24 hr, respectively, these treatments yielded 233% and 137% increase from the 60°C counter parts. A notable trend of increased ethanol yields with increased NaOH concentration was observed for samples treated at 60°C; for example, samples treated using 10% NaOH produced 1.92–2.07 times more than those treated using 3% NaOH. FTIR analysis showed reduction in crystallinity correlating with increased ethanol yields with the largest reduction in crystallinity in the sample treated at −20°C for 24 hr with 7% NaOH.

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