کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
685511 | 889042 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Production of pectinase from deseeded sunflower head by Aspergillus niger in submerged and solid-state conditions Production of pectinase from deseeded sunflower head by Aspergillus niger in submerged and solid-state conditions](/preview/png/685511.png)
Studies were carried out on the production of pectinases using deseeded sunflower head by Aspergillus niger DMF 27 and DMF 45 in submerged fermentation (SmF) and solid-state fermentation (SSF). Higher titres of endo- and exo-pectinases were observed when medium was supplemented with carbon (4% glucose for SmF and 6% sucrose for SSF) and nitrogen (ammonium sulphate, 0.3% for both SmF and SSF) sources. Green gram husk proved to be relatively a better supplement to attain higher yield of endo-pectinase (11.7 U/g) and exo-pectinase (30.0 U/g) in solid-state conditions. Maximum production of endo-pectinase (19.8 U/g) and exo-pectinase (45.9 U/g) by DMF 45 were recorded in SSF when compared to endo-pectinase (18.9 U/ml) and exo-pectinase (30.3 U/ml) by DMF 27 in SmF under optimum process conditions.
Journal: Bioresource Technology - Volume 97, Issue 16, November 2006, Pages 2054–2058