期刊名称：Case Studies in Chemical and Environmental Engineering
印刷版ISSN：2666-0164
出版年度：2020
卷号：2
页码：1-5
DOI：10.1016/j.cscee.2020.100045
语种：English
出版社：Elsevier
摘要：AbstractMedium chain length polyhydroxyalkanoates (mcl-PHAs) are biopolyesters, derived from renewable biomass resources such as palm oil. These PHAs can be converted to added value products such as biopolymers, potentially increasing the economical worth of crude palm oil. Batch experiments were set up in an orbital shaker incubator at 30 °C to explore the feasibility of PHAs biosynthesized byPseudomonas aeruginosaTISTR 1287 from palm oil.P aeruginosawas cultured under varied palm oil concentrations (0.50–2.00% w v−1) and initial pH 7. The concentrations of palm oil and cultivation time influenced the growth ofP. aeruginosaand intracellular accumulation of PHAs. Maximum cell dry weight of 2.33 g L−1was obtained at 0.50% w v−1palm oil after at 44-hr cultivation. The maximum PHAs concentration of 0.65 g L−1and content was 38.02% at 0.75% w v−1palm oil after 72-hr cultivation. Fourier Transform infrared (FTIR) and Gas Chromatography-Mass Spectrometry (GCMS) spectra indicated the biopolyesters are mcl-PHAs with heterogenous types of monomers. The findings showed the palm oil is a good economical, renewable feedstock of carbon for production of mcl-PHAs byP. aeruginosa.
