Life cycle assessment of bioprocessing schemes for poly(3-hydroxybutyrate) production using soybean oil and sucrose as carbon sources
2019
Kookos, Ioannis K. | Koutinas, Apostolis | Vlysidis, Anestis
There is a wide variability on the environmental analysis employing life cycle assessment (LCA) of bio-based polymers produced via fermentation especially in the case of poly(3-hydroxybutyrate) (PHB). The main aim of this study is the evaluation of greenhouse gas (GHG) emissions, non-renewable energy use (NREU), acidification potential (AP) and eutrophication potential (EP) of PHB production. These results have been compared with literature-cited studies and petroleum-derived counterparts. The results demonstrate that, apart from methodological issues and shortcomings inherent to the LCA methodology, various parameters (e.g. selection of raw materials, adopted allocation methodology) affect the variability observed in previous studies. It is also demonstrated that PHB production has definite and undisputed advantages over its petrochemical alternatives that are currently produced on a massive scale.
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