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Steam explosion pretreatment and zymohydrolysis of corn cobs.

Tianbao Ren, Qiu Dong Pan, Ren Xiujuan, Zhang AnBang, Yang Bo, Dongsheng Zhang

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Abstract

In this study,Utilizing corn cobs after steam explosion as material to research on enzymatic hydrolysis of corn cobs.The results showed,maintenance pressure time 240 s and steam pressure 2.8 MPa,the initial ratio of solid content was 14%(W/V),added cellulase(15 FPA/g,zymolyte),xylanase(225 IU/g,zymolyte) under pH 5.0 respectively.Simultaneously the environmental factors(MgSO4 0.005 g/g and Tween-80 0.001 g/g) were added.After 48 hours,the final concentration of reducing sugars was 71.81 g/L and saccharification rate reached 80.85%.This study demonstrated that the steam explosion pretreatment and proper amount of environmental factors could significantly improve the reducing sugars of corn cobs.

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What this paper is about

In this study,Utilizing corn cobs after steam explosion as material to research on enzymatic hydrolysis of corn cobs.The results showed,maintenance pressure time 240 s and steam pressure 2.8 MPa,the initial ratio of solid content was 14%(W/V),added cellulase(15 FPA/g,zymolyte),xylanase(225 IU/g,zymolyte) under pH 5.0 respectively.Simultaneously the environmental factors(MgSO4 0.005 g/g and Tween-80 0.001 g/g) were added.After 48 hours,the final concentration of reducing sugars was 71.81 g/L and saccharification rate reached 80.85%.This study demonstrated that the steam explosion pretreatment and proper amount of environmental factors could significantly improve the reducing sugars of corn cobs.

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Available abstract

In this study,Utilizing corn cobs after steam explosion as material to research on enzymatic hydrolysis of corn cobs.The results showed,maintenance pressure time 240 s and steam pressure 2.8 MPa,the initial ratio of solid content was 14%(W/V),added cellulase(15 FPA/g,zymolyte),xylanase(225 IU/g,zymolyte) under pH 5.0 respectively.Simultaneously the environmental factors(MgSO4 0.005 g/g and Tween-80 0.001 g/g) were added.After 48 hours,the final concentration of reducing sugars was 71.81 g/L and saccharification rate reached 80.85%.This study demonstrated that the steam explosion pretreatment and proper amount of environmental factors could significantly improve the reducing sugars of corn cobs.

Key concepts: Steam explosion, Cellulase, Chemistry, Xylanase, Hydrolysis, Steam pressure, Food science, Enzymatic hydrolysis

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