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Title
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Looking at adsorption of cellulases NS 50013 onto Avicel PH 101 and Protobind 1000 through isotherms and thermodynamics
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Sub-Title |
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Subject |
Protobind 1000; Lignin; Cellulose; Langmuir; Isotherms
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Author |
Dr. K. S. Baig
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Publish Year |
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Supervisor |
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Diss#. |
10.4172/2252-5211.1000222 |
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Pages |
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Text Language |
English |
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Accession |
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Library Section |
Research Article |
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Abstract |
Understanding adsorption characteristics of cellulases can help to control the mechanism of adsorption of
cellulases onto wheat straw. Desorption and reuse of cellulases is a way to decrease cost of production of
bioethanol which can be perfected with knowledge of adsorption characteristics of cellulases. Adsorption of
cellulases NS 50013 onto microcrystalline cellulose (Avicel PH 101) and wheat straw lignin (Protobind 1000) was
studied in batch reactors.
Protobind adsorbed twice the amount of cellulases as did Avicel PH 101 and the rate of adsorption was higher
than that of Avicel PH 101. A comparison of three (most used) adsorption isotherms was conducted to see: i) A
correlation between cellulases adsorbed and initial cellulases loading, ii) Is it a monolayer adsorption, iii) Adsorption
capacities of the substrates. It was observed that Langmuir isotherm was a good representation of adsorption for
both Avicel and Protobind on correlation coefficient of 0.9572 and 0.9880. The Gibbs f
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