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Modelling and validation of Lactobacillus plantarum fermentations in cereal-based media with different sugar concentrations and buffering capacities

Charalampopoulos, D., Vazquez, J. A. and Pandiella, S. S. (2009) Modelling and validation of Lactobacillus plantarum fermentations in cereal-based media with different sugar concentrations and buffering capacities. Biochemical Engineering Journal, 44 (2-3). pp. 96-105. ISSN 1369-703X

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To link to this item DOI: 10.1016/j.bej.2008.11.004

Abstract/Summary

An unstructured mathematical model is proposed to describe the fermentation kinetics of growth, lactic acid production, pH and sugar consumption by Lactobacillus plantarum as a function of the buffering capacity and initial glucose concentration of the culture media. Initially the experimental data of L plantarum fermentations in synthetic media with different buffering capacity and glucose were fitted to a set of primary models. Later the parameters obtained from these models were used to establish mathematical relationships with the independent variables tested. The models were validated with 6 fermentations of L. plantarum in different cereal-based media. In most cases the proposed models adequately describe the biochemical changes taking place during fermentation and are a promising approach for the formulation of cereal-based probiotic foods. (C) 2008 Elsevier B.V. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13506
Uncontrolled Keywords:Lactobacillus plantarum, Probiotic, Mathematical models, Cereal-based media, Buffering capacity, Sugar concentration , LACTIC-ACID PRODUCTION, PERMEATE/YEAST EXTRACT MEDIUM, CONTROLLED BATCH CULTURES, SAKEI STRAIN CTC-494, BACTERIOCIN PRODUCTION, HELVETICUS GROWTH, NISIN PRODUCTION, MATHEMATICAL-MODELS, LACTOCOCCUS-LACTIS, UNSTRUCTURED MODEL

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