Application of multifractal wavelet analysis to spontaneous fermentation processes

V. Ibarra-Junquera, J.S. Murguía, P. Escalante-Minakata and H.C. Rosu

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 12, 2802-2808

Abstract: An algorithm is presented here to get more detailed information, of mixed-culture type, based exclusively on the biomass concentration data for fermentation processes. The analysis is performed with only the on-line measurements of the redox potential being available. It is a two-step procedure which includes an Artificial Neural Network (ANN) that relates the redox potential to the biomass concentrations in the first step. Next, a multifractal wavelet analysis is performed using the biomass estimates of the process. In this context, our results show that the redox potential is a valuable indicator of microorganism metabolic activity during the spontaneous fermentation. In this paper, the detailed design of the multifractal wavelet analysis is presented, as well as its direct experimental application at the laboratory level.

Keywords: Multifractal; Wavelet; Mixed-culture; Spontaneous fermentation; Redox potential (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:12:p:2802-2808

DOI: 10.1016/j.physa.2008.01.083

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