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Author Cabrera, F.; Torres, A.; Campos, J.L.; Jeison, D.
Title Effect of Operational Conditions on the Behaviour and Associated Costs of Mixed Microbial Cultures for PHA Production Type
Year 2019 Publication Polymers Abbreviated Journal Polymers
Volume 11 Issue 2 Pages 14 pp
Keywords PHA; mixed microbial cultures; bioplastics; feast-famine; cost
Abstract Massive production and disposal of petrochemical derived plastics represent relevant environmental problems. Polyhydroxyalkanoates (PHA) are a renewable alternative that can even be produced from wastes. The production of PHA from acetate using mixed microbial cultures was studied. The effect of two key operational conditions was evaluated, i.e., substrate concentration and cycle length. The effects of these factors on several responses were studied using a surface response methodology. Several reactors were operated under selected conditions for at least 10 solids retention times to ensure stable operation. Results show that conditions providing higher PHA content involve lower biomass productivities. This has a great impact on biomass production costs. Results suggest then that PHA content alone may not be a reasonable criterion for determining optimal conditions for PHB production. If production costs need to be reduced, conditions that provide a lower PHA content in the selection reactor, but a higher biomass productivity may be of interest.
Address [Cabrera, Francisco; Torres, Alvaro] Univ La Frontera, Dept Chem Engn, Ave Francisco Salazar 01145, Temuco 4780000, Chile, Email: f.cabrera01@ufromail.cl;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2073-4360 ISBN Medium
Area Expedition Conference
Notes WOS:000460296000005 Approved
Call Number UAI @ eduardo.moreno @ Serial 986
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