Journal ArticleDOI
Multiresponse analysis of microbiological parameters affecting the production of pectolytic enzymes by Aspergillus niger: a statistical view
TLDR
In order to develop a two-stage inoculum possessing the best conditions for the maximum production of all three enzymes, a multiresponse analysis was carried out using a generalized distance approach.About:
This article is published in Process Biochemistry.The article was published on 1999-10-01. It has received 63 citations till now.read more
Citations
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Journal ArticleDOI
Relationship between morphology, rheology and polygalacturonase production by Aspergillus sojae ATCC 20235 in submerged cultures
TL;DR: Considering the morphology of the final culture, Aspergillus sojae with the desired pellet morphology in a complex media, inoculated with a seed culture prepared from molasses resulted in maximum polygalacturonase enzyme activity and lowest suspension viscosity with a broth rheology close to Newtonian flow behavior.
Journal ArticleDOI
Effect of various process parameters on morphology, rheology, and polygalacturonase production by Aspergillus sojae in a batch bioreactor.
TL;DR: This study introduced a new strain of Aspergillus sojae with a potential of producing a highly commercially significant enzyme and provided certain parameters significant in the design and mathematical modeling of fungal bioprocesses.
Journal ArticleDOI
Experimental design and response surface modeling applied for the optimisation of pectin hydrolysis by enzymes from A. niger CECT 2088
TL;DR: In this paper, the effect of enzyme concentration (0.018-0.072%, w/v), substrate concentration ( 0.004 −0.896%), pH (4.49-5.91), temperature (32.2-67.8°C) and reaction time (18.2 −71.8min) on the enzymatic process was studied.
Journal ArticleDOI
Bioconversion of wheat bran for polygalacturonase production by Aspergillus sojae in tray type solid-state fermentation
Hande Demir,Canan Tari +1 more
TL;DR: In this paper, wheat bran was used as the solid substrate for the tray-type solid-state fermentation (SSF) production of polygalacturonase (PG) enzyme by A. sojae mutant strain.
Journal ArticleDOI
Optimization of the process parameters for the utilization of orange peel to produce polygalacturonase by solid-state fermentation from an Aspergillus sojae mutant strain
TL;DR: Accuracy and reliability of the constructed models on the responses was validated and the maximum calculated error rate between the predicted and actual activities at 14.1% and 22.4%, respectively were validated.
References
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Book ChapterDOI
On the Experimental Attainment of Optimum Conditions
George E. P. Box,K. B. Wilson +1 more
TL;DR: The work described in this article is the result of a study extending over the past few years by a chemist and a statistician, which has come about mainly in answer to problems of determining optimum conditions in chemical investigations, but they believe that the methods will be of value in other fields where experimentation is sequential and the error fairly small.
Journal ArticleDOI
An Automatic Method for Finding the Greatest or Least Value of a Function
Book
Response surfaces : designs and analyses
John A. Cornell,André I. Khuri +1 more
TL;DR: In this paper, the authors present a methodology for estimating response surfaces that rival least squares based on the integrated mean squared error criterion analysis of multiresponse experiments with block effects mixture designs and analyses nonlinear response surface models.
Journal ArticleDOI
Response Surfaces: Designs and Analyses
TL;DR: In this paper, the authors present a methodology for estimating response surfaces that rival least squares based on the integrated mean squared error criterion analysis of multiresponse experiments with block effects mixture designs and analyses nonlinear response surface models.
Journal ArticleDOI
Multi-Factor Experimental Designs for Exploring Response Surfaces
George E. P. Box,J. S. Hunter +1 more
TL;DR: In this paper, the concept of the variance function for an experimental design is introduced, and the problem of selecting practically useful designs is discussed, and in this connection, the notion of variance function is introduced.