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Difference between revisions of "Hydrolysis"
→Enzymatic hydrolysis
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Enzymatic hydrolysis is a catalytic decomposition of a chemical compound by reaction with water, such as the conversion of lignocellulosic materials, by the addition of specific enzymes. | Enzymatic hydrolysis is a catalytic decomposition of a chemical compound by reaction with water, such as the conversion of lignocellulosic materials, by the addition of specific enzymes. | ||
==== Enzymatic hydrolysis of cellulose ==== | |||
The hydrolysis of cellulose in native lignocellulosic material is slow and is primarily governed by structural features of the lignocellulosic biomass: | |||
1. cellulose present in biomass possesses highly resistant crystalline structure; | 1. cellulose present in biomass possesses highly resistant crystalline structure; | ||
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Pretreatment, therefore, is an essential prerequisite to enhance the susceptibility of lignocellulosic materilas to enzyme action. An ideal pretreatment would accomplish reduction in lignin content, concommitant with a reduction in crystallinity, and an increase in surface area. The variety of pretreatments can be classified into physical, chemical, and biological depending on the mode of their action [10]. | Pretreatment, therefore, is an essential prerequisite to enhance the susceptibility of lignocellulosic materilas to enzyme action. An ideal pretreatment would accomplish reduction in lignin content, concommitant with a reduction in crystallinity, and an increase in surface area. The variety of pretreatments can be classified into physical, chemical, and biological depending on the mode of their action [10]. | ||
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==== Enzymatic hydrolysis of hemi-cellulose ==== | |||
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==== Enzymatic hydrolysis of lignin ==== | |||
=== Biological hydrolysis === | === Biological hydrolysis === | ||