Optimizing ammonia pressurization/depressurization processing conditions to enhance enzymatic susceptibility of dwarf elephant grass.
Appl Biochem Biotechnol
; 84-86: 163-79, 2000.
Article
in En
| MEDLINE
| ID: mdl-10849787
ABSTRACT
An ammonia pressurization/depressurization process was investigated to evaluate the potential of producing reducing sugars from dwarf elephant grass, a warm-season forage. Moisture, temperature, and ammonia loading affected sugar yield (p < 0.0001). At optimal conditions, ammonia processing solubilized 50.9% of the hemicellulose and raised the sugar yield (percentage of theoretical) from 18 to 83%. Glucose and xylose production were increased 3.2- and 8.2-fold, respectively. The mild processing conditions of the ammonia treatment (90-100 degrees C, 5 min), the low enzyme loading (2 international filter paper units/g), and the short hydrolysis time (24 h), greatly enhance the potential of using forages to produce sugars valuable for several applications.
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Database:
MEDLINE
Main subject:
Polysaccharides
/
Xylose
/
Cellulase
/
Cellulose
/
Beta-Glucosidase
/
Glucose
/
Poaceae
/
Animal Feed
Language:
En
Journal:
Appl Biochem Biotechnol
Year:
2000
Type:
Article
Affiliation country:
Venezuela