scholarly journals Production of lipase from Aspergillus oryzae (T4) isolate by solid-state fermentation

2007 ◽  
Vol 1 (1) ◽  
pp. 1-14
Author(s):  
Thikra A. Mustafa ◽  
Shatha S. AL-Azawi ◽  
Khulood W. AL-Samarraei
Keyword(s):  
Solid State ◽  
Olive Oil ◽  
Aspergillus Oryzae ◽  
Solid State Fermentation ◽  
Phosphate Buffer ◽  
Cotton Seed ◽  
Dry Weight ◽  
Optimum Conditions ◽  
Cotton Seed Meal ◽  
Fungal Isolates

Forty five fungal isolates belong to different species were tested for their ability to produce lipase, one of these isolates was selected as the best lipase producer. It was identified as a strain of Aspergillus oryzae (T4).The optimum conditions for the production of lipase by solid–state fermentation included culturing of the fungus on cotton seed meal hydrated with 1% ammonium sulfate and1% olive oil, pH 7.0 with 1:2 (w/v) hydration ratio incubated at 30˚C for 7 days .The best extraction solution for the enzyme was 0.2 M phosphate buffer pH 7.0, the productivity reached 2U/g dry weight under these conditions.

scholarly journals PRODUCTION AND CHARACTERIZATION OF CELLULOLYTIC ENZYMES BY ASPERGILLUS NIGER AND RHIZOPUS SP. BY SOLID STATE FERMENTATION OF PRICKLY PEAR

2016 ◽  
Vol 29 (1) ◽  
pp. 222-233 ◽  
Author(s):  
TAMIRES CARVALHO DOS SANTOS ◽  
GEORGE ABREU FILHO ◽  
AILA RIANY DE BRITO ◽  
AURELIANO JOSÉ VIEIRA PIRES ◽  
RENATA CRISTINA FERREIRA BONOMO ◽  
...  
Keyword(s):  
Solid State ◽  
Aspergillus Niger ◽  
Water Activity ◽  
Solid State Fermentation ◽  
Cellulase Production ◽  
Cellulolytic Enzymes ◽  
Optimum Conditions ◽  
Thermostable Enzymes ◽  
Fermentation Time ◽  
Rhizopus Sp

ABSTRACT: Prickly palm cactus husk was used as a solid-state fermentation support substrate for the production of cellulolytic enzymes using Aspergillus niger and Rhizopus sp. A Box-Behnken design was used to evaluate the effects of water activity, fermentation time and temperature on endoglucanase and total cellulase production. Response Surface Methodology showed that optimum conditions for endoglucanase production were achieved at after 70.35 h of fermentation at 29.56°C and a water activity of 0.875 for Aspergillus niger and after 68.12 h at 30.41°C for Rhizopus sp. Optimum conditions for total cellulase production were achieved after 74.27 h of fermentation at 31.22°C for Aspergillus niger and after 72.48 h and 27.86°C for Rhizopus sp. Water activity had a significant effect on Aspergillus niger endoglucanase production only. In industrial applications, enzymatic characterization is important for optimizing variables such as temperature and pH. In this study we showed that endoglucanase and total cellulase had a high level of thermostability and pH stability in all the enzymatic extracts. Enzymatic deactivation kinetic experiments indicated that the enzymes remained active after the freezing of the crude extract. Based on the results, bioconversion of cactus is an excellent alternative for the production of thermostable enzymes.

Aerial mycelia of Aspergillus oryzae accelerate α-amylase production in a model solid-state fermentation system

2005 ◽  
Vol 36 (7) ◽  
pp. 900-902 ◽  
Author(s):  
Yovita S.P. Rahardjo ◽  
Frans J. Weber ◽  
Sebastiaan Haemers ◽  
Johannes Tramper ◽  
Arjen Rinzema
Keyword(s):  
Solid State ◽  
Aspergillus Oryzae ◽  
Solid State Fermentation ◽  
Fermentation System ◽  
Amylase Production

scholarly journals Cow Dung Substrate for the Potential Production of Alkaline Proteases by Pseudomonas putida Strain AT in Solid-State Fermentation

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Ponnuswamy Vijayaraghavan ◽  
Sreekumar Saranya ◽  
Samuel Gnana Prakash Vincent
Keyword(s):  
Solid State ◽  
Pseudomonas Putida ◽  
Solid State Fermentation ◽  
Maximum Activity ◽  
Protease Production ◽  
Cow Dung ◽  
Alkaline Proteases ◽  
Optimum Conditions ◽  
Potential Production ◽  
Fermentation Period

Cow dung and agroresidues were used as the substrates for the production of alkaline proteases by Pseudomonas putida strain AT in solid-state fermentation. Among the various substrates evaluated, cow dung supported maximum (1351±217 U/g) protease production. The optimum conditions for the production of alkaline proteases were a fermentation period of 48 h, 120% (v/w) moisture, pH 9, and the addition of 6% (v/w) inoculum, 1.5% (w/w) trehalose, and 2.0% (w/w) yeast extract to the cow dung substrate. The enzyme was active over a range of temperatures (50–70°C) and pHs (8–10), with maximum activity at 60°C and pH 9. These enzymes showed stability towards surfactants, detergents, and solvent and digested various natural proteins.

scholarly journals Production of Polygalacturonase by Recombinant Aspergillus oryzae in Solid-State Fermentation Using Potato Pulp

2010 ◽  
Vol 16 (5) ◽  
pp. 517-521 ◽  
Author(s):  
Satoshi SUZUKI ◽  
Mari FUKUOKA ◽  
Sawaki TADA ◽  
Mayumi MATSUSHITA-MORITA ◽  
Ryota HATTORI ◽  
...  
Keyword(s):  
Solid State ◽  
Aspergillus Oryzae ◽  
Solid State Fermentation ◽  
Potato Pulp
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