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פותח על ידי קלירמאש פתרונות בע"מ -
Inter‐relationships between acidic and alkali treatments of cotton straw and wheat straw and their fibre chemical properties
Year:
1987
Authors :
סילניקוב, ניסים
;
.
Volume :
38
Co-Authors:
Silanikove, N., MIGAL-Galilee Technological Centre, Kiryat Shmona, 10200, Israel
Levanon, D., Agricultural Research Organization, Volcani Centre, Bet Dagan, Israel
Facilitators :
From page:
117
To page:
124
(
Total pages:
8
)
Abstract:
The amount of lignin in the cell walls of cotton straw (CS) and wheat straw (WS) was found to be the same, but the ratio between lignin and hemicellulose was considerably lower in CS than in WS. In CS the amount of soluble acid lignin was less than 1% of the total lignin, whereas in WS it was 20%. The amount of phenolics in concentrated sulphuric acid (72%) hydrolysates of the cell wall was reduced drastically in WS compared with the amount released by diluted (1 N) sulphuric acid; this may have been due to polymerisation of low‐molecular‐size lignin. The amount of alkali‐soluble lignin in WS was 3–7 times greater than in CS. Following acid treatment the amount of alkali‐soluble lignin was reduced from 20% of the total content to 5% in WS, and from 5% to 1% in CS. Enzymic hydrolysis was 49% higher in WS cell wall than in CS cell wall. In WS, acidic and alkali pretreatments followed by cellulase treatment increased glucose yield from cellulose by 260% and 280%, respectively. In CS, acidic pretreatment did not affect the glucose yield from cellulose, whereas alkali treatment increased it by 35%. Copyright © 1987 John Wiley & Sons, Ltd
Note:
Related Files :
acid treatment
alkali treatment
Cellulose
cell wall
degradability
Fibre
Hemicellulose
lignin
עוד תגיות
תוכן קשור
More details
DOI :
10.1002/jsfa.2740380204
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24526
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:08
You may also be interested in
Scientific Publication
Inter‐relationships between acidic and alkali treatments of cotton straw and wheat straw and their fibre chemical properties
38
Silanikove, N., MIGAL-Galilee Technological Centre, Kiryat Shmona, 10200, Israel
Levanon, D., Agricultural Research Organization, Volcani Centre, Bet Dagan, Israel
Inter‐relationships between acidic and alkali treatments of cotton straw and wheat straw and their fibre chemical properties
The amount of lignin in the cell walls of cotton straw (CS) and wheat straw (WS) was found to be the same, but the ratio between lignin and hemicellulose was considerably lower in CS than in WS. In CS the amount of soluble acid lignin was less than 1% of the total lignin, whereas in WS it was 20%. The amount of phenolics in concentrated sulphuric acid (72%) hydrolysates of the cell wall was reduced drastically in WS compared with the amount released by diluted (1 N) sulphuric acid; this may have been due to polymerisation of low‐molecular‐size lignin. The amount of alkali‐soluble lignin in WS was 3–7 times greater than in CS. Following acid treatment the amount of alkali‐soluble lignin was reduced from 20% of the total content to 5% in WS, and from 5% to 1% in CS. Enzymic hydrolysis was 49% higher in WS cell wall than in CS cell wall. In WS, acidic and alkali pretreatments followed by cellulase treatment increased glucose yield from cellulose by 260% and 280%, respectively. In CS, acidic pretreatment did not affect the glucose yield from cellulose, whereas alkali treatment increased it by 35%. Copyright © 1987 John Wiley & Sons, Ltd
Scientific Publication
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