title: Production of polyhydroxyalkanoate (PHA) by Ralstonia eutropha JMP 134 with volatile fatty acids from palm oil mill effluent as precursors.
abstract: The highest volatile fatty acids (VFAs) concentration from palm oil mill effluent (POME) treated by anaerobic fermentation was achieved for a 1-day process when the main acids used were acetic, propionic and butyric acids. Polyhydroxyalkanoate (PHA) production with VFAs from POME as precursors in the fed-batch mode has advantages over batch mode, both in terms of its productivity and 3HV (3-hydroxyvalerate) composition in the produced polymer. With the fed batch, the productivity increased to 343% and contained more 3HV than those of the batch. The structures of the PHA were identified by different methods and they supported each other; the resulting products consisted of functional groups of 3HB (3-hydroxybutyrate) and 3HV.
authors.affiliation: Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Labtek X, Jl. Ganesha 10, Bandung 40132, Indonesia E-mail: tjandra@che.itb.ac.id.
authors.forename: Tjandra
authors.initials: T
authors.lastname: Setiadi
authors.affiliation: Department of Chemical Engineering, Politeknik Negeri Sriwijaya, Palembang, Indonesia.
authors.forename: Martha
authors.initials: M
authors.lastname: Aznury
authors.affiliation: Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Labtek X, Jl. Ganesha 10, Bandung 40132, Indonesia E-mail: tjandra@che.itb.ac.id.
authors.forename: Azis
authors.initials: A
authors.lastname: Trianto
authors.affiliation: School of Life Sciences and Technology, Institut Teknologi Bandung, Labtek XI, Jl. Ganesha 10, Bandung 40132, Indonesia.
authors.forename: Adi
authors.initials: A
authors.lastname: Pancoro
mesh_terms: D020118:Cupriavidus necator / Q000378:metabolism*; D005232:Fatty Acids, Volatile / Q000378:metabolism*; D005285:Fermentation; D000073878:Palm Oil; D010938:Plant Oils / Q000032:analysis / Q000378:metabolism*; D054813:Polyhydroxyalkanoates / Q000032:analysis / Q000378:metabolism*; D062065:Wastewater / Q000032:analysis / Q000382:microbiology*
chemical_list: D005232:Fatty Acids, Volatile; D000073878:Palm Oil; D010938:Plant Oils; D054813:Polyhydroxyalkanoates; D062065:Wastewater