BIOCHEMICAL STUDIES ON SOME AGRICULTURAL WASTES
NASSER ABD EL-RHMAN FEKRI MOHAMED;
Abstract
In the present work, the lignocellulosic materials of Dashean and Carrot residues have been investigated and more information was 1 obtained about their pretreatment and chemical features of these agricultural wastes. Besides, cellulase complex enzymes were evaluated
to obtain their optimum conditions. Saccharification process was carried out using these enzymes to convert cellulose polysaccharides of the above-mentioned lignocellulosic materials to glucose and cellobiose syrup.
The obtained results indicated that Dashean and Carrot residues contained a high percentage of cellulose and hemicellulose polysaccharides ( 40.64% , 18.16% ) and ( 39.15% , 18.95% ). Pretreatment of lignocellulosic materials with NaOH or CH3COOH (glacial) was achieved to convert the crystallinity structure of these polymers to amorphous state to enhance the enzymatic attack toward these polysaccharides.
The results indicated that pretreatment of lignocellulosic materials with CH3COOH (glacial) showed a higher yield of cellulose at different concentrations and temperatures comparing with NaOH pretreatment
to obtain their optimum conditions. Saccharification process was carried out using these enzymes to convert cellulose polysaccharides of the above-mentioned lignocellulosic materials to glucose and cellobiose syrup.
The obtained results indicated that Dashean and Carrot residues contained a high percentage of cellulose and hemicellulose polysaccharides ( 40.64% , 18.16% ) and ( 39.15% , 18.95% ). Pretreatment of lignocellulosic materials with NaOH or CH3COOH (glacial) was achieved to convert the crystallinity structure of these polymers to amorphous state to enhance the enzymatic attack toward these polysaccharides.
The results indicated that pretreatment of lignocellulosic materials with CH3COOH (glacial) showed a higher yield of cellulose at different concentrations and temperatures comparing with NaOH pretreatment
Other data
| Title | BIOCHEMICAL STUDIES ON SOME AGRICULTURAL WASTES | Other Titles | دراسة كيميائية حيوية عن بعض المخلفات الزراعية | Authors | NASSER ABD EL-RHMAN FEKRI MOHAMED | Issue Date | 2001 |
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