- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
STUDY THE OPTIMAL CULTURAL CONDITIONS FOR ALGINIC ACID PRODUCTION BY LOCAL ISOLATE OF AZOTOBACTER VINELANDII USING SOLID STATE FERMENTATION | ||
| Iraqi Journal of Biotechnology | ||
| Article 1, Volume 4, Issue 1, 2005, Pages 51-75 | ||
| Abstract | ||
| ABSTRACT Five alginic acid producing isolates of Azotobacter vinelandii were obtained from local soil samples. One isolate, designated as isolate No.1,was selected for the present study , based on it,s high productivity to alginic acid among the others when grown on agar media. Wheat bran was shown to be a supporting substance for alginic acid production by isolate No.1 using solid suitable state fermentation system. Some optimal cultural conditions for alginic acid production by solid state fermentation were determined. These included , the moisture ratio, kind and concentration of carbon and nitrogen sources, and incubation period. It has been shown that the highest amount of alginic acid was recorded , when wheat bran was moistened with a liquid medium containing 4 % Zahdi date extract , as carbon source and 0.75% baker yeast as nitrogen source, the moisture ratio was 5:1 (ml:g wheat bran), and the incubation period was 6 days at 28 ºC. _______________________________________________________ | ||
| Keywords | ||
| Azotobacter; Alginic acid; Solid State Fermentation | ||
|
Statistics Article View: 31 PDF Download: 19 |
||