Abstract
Polyhydroxyalkanoates (PHA) are intracellular polymers stored by many bacterial species. Presently PHA are industrially produced by pure cultures fermentation where high quality substrates are used. Mixed cultuires using raw substrates are able to produce PHA when submitted to transient conditions like oscillations on substrate feeding or on oxygen supply. The yield on PHA produced by activated sludge submitted to these dynamic conditions reach values comparable to those obtained .by the pure cultures, being the first process less cost intensive than the last one. The chain length of the polymer produced in both processes is similar.
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Serafim, L.S., Lemos, P.C., Crespo, J.G., Ramos, A.M., Reis, M.A.M. (2001). Polyhydroxyalkanoates Production by Activated Sludge. In: Chiellini, E., Gil, H., Braunegg, G., Buchert, J., Gatenholm, P., van der Zee, M. (eds) Biorelated Polymers. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-3374-7_15
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DOI: https://doi.org/10.1007/978-1-4757-3374-7_15
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