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Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour
Cereals including maize generally have limiting amino acids particularly lysine. In most cases, spontaneous fermentation is used to improve the nutritional profiles of maize‐based products. However, in such fermentation, biological risks including the presence of pathogenic microorganisms, chemical...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565243/ https://www.ncbi.nlm.nih.gov/pubmed/34760264 http://dx.doi.org/10.1002/fsn3.2599 |
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author | Terefe, Zemenu K. Omwamba, Mary N. Nduko, John M. |
author_facet | Terefe, Zemenu K. Omwamba, Mary N. Nduko, John M. |
author_sort | Terefe, Zemenu K. |
collection | PubMed |
description | Cereals including maize generally have limiting amino acids particularly lysine. In most cases, spontaneous fermentation is used to improve the nutritional profiles of maize‐based products. However, in such fermentation, biological risks including the presence of pathogenic microorganisms, chemical contaminants, and toxic compounds of microbial origin such as mycotoxins pose a health risk. The aim of this study was, therefore, to improve the nutritional properties of maize flour by reducing antinutritional factors through microbial fermentation by strains of Lactobacillus plantarum and Saccharomyces cerevisiae and their cocultures. A factorial experimental design was used to evaluate the effect of fermentation setups and time on proximate composition, antinutritional factors, and in vitro digestibility of proteins in maize flour. During 48 h of fermentation, protein content was improved by 38%, 55%, 49%, and 48%, whereas in vitro protein digestibility improved by 31%, 40%, 36%, and 34% for natural, Lactobacillus plantarum, Saccharomyces cerevisiae, and their coculture‐fermented maize flour, respectively. The highest improvement in protein content and its digestibility was observed for Lactobacillus plantarum strain‐fermented maize flour. Phytate, tannin and trypsin inhibitor activity were reduced significantly (p < .05) for natural, Lactobacillus plantarum, Saccharomyces cerevisiae, and coculture‐fermented maize flour. The highest reduction of phytate (66%), tannin (75%), and trypsin inhibitor (64%) was observed for coculture‐fermented maize flour. The two strains and their cocultures were found feasible for fermentation of maize flour to improve its nutritional profiles more than the conventional fermentation process. |
format | Online Article Text |
id | pubmed-8565243 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85652432021-11-09 Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour Terefe, Zemenu K. Omwamba, Mary N. Nduko, John M. Food Sci Nutr Original Research Cereals including maize generally have limiting amino acids particularly lysine. In most cases, spontaneous fermentation is used to improve the nutritional profiles of maize‐based products. However, in such fermentation, biological risks including the presence of pathogenic microorganisms, chemical contaminants, and toxic compounds of microbial origin such as mycotoxins pose a health risk. The aim of this study was, therefore, to improve the nutritional properties of maize flour by reducing antinutritional factors through microbial fermentation by strains of Lactobacillus plantarum and Saccharomyces cerevisiae and their cocultures. A factorial experimental design was used to evaluate the effect of fermentation setups and time on proximate composition, antinutritional factors, and in vitro digestibility of proteins in maize flour. During 48 h of fermentation, protein content was improved by 38%, 55%, 49%, and 48%, whereas in vitro protein digestibility improved by 31%, 40%, 36%, and 34% for natural, Lactobacillus plantarum, Saccharomyces cerevisiae, and their coculture‐fermented maize flour, respectively. The highest improvement in protein content and its digestibility was observed for Lactobacillus plantarum strain‐fermented maize flour. Phytate, tannin and trypsin inhibitor activity were reduced significantly (p < .05) for natural, Lactobacillus plantarum, Saccharomyces cerevisiae, and coculture‐fermented maize flour. The highest reduction of phytate (66%), tannin (75%), and trypsin inhibitor (64%) was observed for coculture‐fermented maize flour. The two strains and their cocultures were found feasible for fermentation of maize flour to improve its nutritional profiles more than the conventional fermentation process. John Wiley and Sons Inc. 2021-09-22 /pmc/articles/PMC8565243/ /pubmed/34760264 http://dx.doi.org/10.1002/fsn3.2599 Text en © 2021 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Terefe, Zemenu K. Omwamba, Mary N. Nduko, John M. Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title | Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title_full | Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title_fullStr | Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title_full_unstemmed | Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title_short | Effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
title_sort | effect of solid state fermentation on proximate composition, antinutritional factors and in vitro protein digestibility of maize flour |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565243/ https://www.ncbi.nlm.nih.gov/pubmed/34760264 http://dx.doi.org/10.1002/fsn3.2599 |
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