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As appropriate models to perform such an analysis are necessarily non-linear and typically non-convex, finding their global optimum is a challenging task. Canonical modeling techniques, such as Generalized Mass Action (GMA) models based on the power-law formalism, offer a possible solution to this problem because they have a mathematical structure that enables the development of specific algorithms for global optimization.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Based on the GMA canonical representation, we have developed in previous works a highly efficient optimization algorithm and a set of related strategies for understanding the evolution of adaptive responses in cellular metabolism. Here, we explore the possibility of recasting kinetic non-linear models into an equivalent GMA model, so that global optimization on the recast GMA model can be performed. With this technique, optimization is greatly facilitated and the results are transposable to the original non-linear problem. This procedure is straightforward for a particular class of non-linear models known as Saturable and Cooperative (SC) models that extend the power-law formalism to deal with saturation and cooperativity.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>Our results show that recasting non-linear kinetic models into GMA models is indeed an appropriate strategy that helps overcoming some of the numerical difficulties that arise during the global optimization task.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1752-0509-5-137","type":"journal-article","created":{"date-parts":[[2011,8,25]],"date-time":"2011-08-25T18:26:54Z","timestamp":1314296814000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Steady-state global optimization of metabolic non-linear dynamic models through recasting into power-law canonical models"],"prefix":"10.1186","volume":"5","author":[{"given":"Carlos","family":"Pozo","sequence":"first","affiliation":[]},{"given":"Alberto","family":"Mar\u00edn-Sanguino","sequence":"additional","affiliation":[]},{"given":"Rui","family":"Alves","sequence":"additional","affiliation":[]},{"given":"Gonzalo","family":"Guill\u00e9n-Gos\u00e1lbez","sequence":"additional","affiliation":[]},{"given":"Laureano","family":"Jim\u00e9nez","sequence":"additional","affiliation":[]},{"given":"Albert","family":"Sorribas","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2011,8,25]]},"reference":[{"issue":"5","key":"741_CR1","doi-asserted-by":"publisher","first-page":"572","DOI":"10.1002\/bit.260400504","volume":"40","author":"EO Voit","year":"1992","unstructured":"Voit EO: Optimization in integrated biochemical systems. 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