Optimisation of alpha-amylase inhibitor production in solid state fermentation

Though not a known producer of alpha-amylase inhibitor, the potential of Streptomyces xinghaiensis AAI-2 to produce this important metabolite was assessed and the process optimised in solid substrate using response surface methodology. The isolate was grown in an inoculum medium, inoculated into whe...

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Main Authors: O. A. Fatoki, A. A. Onilude, Y. A. Ekanola, C. T. Akanbi
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2023.1073754/full
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author O. A. Fatoki
A. A. Onilude
Y. A. Ekanola
C. T. Akanbi
author_facet O. A. Fatoki
A. A. Onilude
Y. A. Ekanola
C. T. Akanbi
author_sort O. A. Fatoki
collection DOAJ
description Though not a known producer of alpha-amylase inhibitor, the potential of Streptomyces xinghaiensis AAI-2 to produce this important metabolite was assessed and the process optimised in solid substrate using response surface methodology. The isolate was grown in an inoculum medium, inoculated into wheat bran and supplemented with a basal medium for production of alpha amylase inhibitor. Optimum conditions were determined by Response Surface Methodology. The extract was recovered using sodium phosphate buffer at refrigerated temperature and assay for the presence of alpha-amylase inhibitor was carried out by Dinitrosalicylic acid method. Based on the results of the experimental trials and iteration with those values, it was predicted that optimal pH for alpha-amylase inhibitor production using S. xinghaiensis in solid culture of wheat bran was pH 6.4–6.9 while optimal moisture content and incubation time were predicted as 71%–73% and 9–12 days respectively.
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spelling doaj.art-df02d2541d504166ad6bf15ccc2843c22023-03-22T05:44:34ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122023-03-011410.3389/fphar.2023.10737541073754Optimisation of alpha-amylase inhibitor production in solid state fermentationO. A. Fatoki0A. A. Onilude1Y. A. Ekanola2C. T. Akanbi3Department of Biology, The Polytechnic, Ibadan, NigeriaDepartment of Microbiology, University of Ibadan, Ibadan, NigeriaDepartment of Biology, The Polytechnic, Ibadan, NigeriaDepartment of Food Science and Technology, Obafemi Awolowo University, Ile-Ife, NigeriaThough not a known producer of alpha-amylase inhibitor, the potential of Streptomyces xinghaiensis AAI-2 to produce this important metabolite was assessed and the process optimised in solid substrate using response surface methodology. The isolate was grown in an inoculum medium, inoculated into wheat bran and supplemented with a basal medium for production of alpha amylase inhibitor. Optimum conditions were determined by Response Surface Methodology. The extract was recovered using sodium phosphate buffer at refrigerated temperature and assay for the presence of alpha-amylase inhibitor was carried out by Dinitrosalicylic acid method. Based on the results of the experimental trials and iteration with those values, it was predicted that optimal pH for alpha-amylase inhibitor production using S. xinghaiensis in solid culture of wheat bran was pH 6.4–6.9 while optimal moisture content and incubation time were predicted as 71%–73% and 9–12 days respectively.https://www.frontiersin.org/articles/10.3389/fphar.2023.1073754/fullalpha-amylase inhibitoroptimisationRSMStreptomycessolid state fermentation
spellingShingle O. A. Fatoki
A. A. Onilude
Y. A. Ekanola
C. T. Akanbi
Optimisation of alpha-amylase inhibitor production in solid state fermentation
Frontiers in Pharmacology
alpha-amylase inhibitor
optimisation
RSM
Streptomyces
solid state fermentation
title Optimisation of alpha-amylase inhibitor production in solid state fermentation
title_full Optimisation of alpha-amylase inhibitor production in solid state fermentation
title_fullStr Optimisation of alpha-amylase inhibitor production in solid state fermentation
title_full_unstemmed Optimisation of alpha-amylase inhibitor production in solid state fermentation
title_short Optimisation of alpha-amylase inhibitor production in solid state fermentation
title_sort optimisation of alpha amylase inhibitor production in solid state fermentation
topic alpha-amylase inhibitor
optimisation
RSM
Streptomyces
solid state fermentation
url https://www.frontiersin.org/articles/10.3389/fphar.2023.1073754/full
work_keys_str_mv AT oafatoki optimisationofalphaamylaseinhibitorproductioninsolidstatefermentation
AT aaonilude optimisationofalphaamylaseinhibitorproductioninsolidstatefermentation
AT yaekanola optimisationofalphaamylaseinhibitorproductioninsolidstatefermentation
AT ctakanbi optimisationofalphaamylaseinhibitorproductioninsolidstatefermentation