Abstract
Pseudomonas stutzeri strain 1317 was found to grow on various fatty acids, alcohols, diols, as well as glucose and gluconate for the synthesis of polyhydroxyalkanoates (PHA) with various monomer units. The PHA monomer structures were dependent on the type of fatty acids and alcohols, as well as the diols in the culture media. Only even number monomers, such as 3-hydroxyhexanoate (HHx), 3-hydroxyoctanoate (HO) and 3-hydroxydecanoate (HD), were accumulated when even numbered fatty acids, alcohols, glucose and gluconate, as well as diol were used as carbon sources. Odd numbered fatty acids and odd numbered alcohols led to the formation of odd numbered monomers, such as 3-hydroxyvalerate (HV), 3-hydroxyheptanoate (HHp), 3-hydroxynonanoate (HN) and 3-hydroxyundecanoate (HU). The strain tolerated up to 1.5% of ethanol and made 8.3% of PHA when growth was conducted in 1.2% of ethanol. PHA formed up to 77% of cell dry weight when the strain was grown in tridecanoate. PHA synthesis was highly dependent on the nitrogen source. A depletion in nitrogen supply immediately resulted in PHA accumulation in cells grown in the glucose mineral medium.
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Xi, J., Wu, Q., Yan, Y. et al. Hyperproduction of polyesters consisting of medium-chain-length hydroxyalkanoate monomers by strain Pseudomonas stutzeri 1317. Antonie Van Leeuwenhoek 78, 43–49 (2000). https://doi.org/10.1023/A:1002714102347
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DOI: https://doi.org/10.1023/A:1002714102347