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Table 1 PHA production using various fatty acid co-substrates by M. parvus OBBP

From: Expanding the range of polyhydroxyalkanoates synthesized by methanotrophic bacteria through the utilization of omega-hydroxyalkanoate co-substrates

Co-substrates wt% PHA polymer PHA monomer ratio (mol%) TSS (mg/L)
3HB 3HV 4HB 5HV 6HHx
None 42 ± 3 100 0 0 0 0 1600 ± 180
Butyrate (1.2 mM) 55 ± 3 100 0 0 0 0 1660 ± 200
3-Hydroxybutyrate (1.2 mM) 59 ± 5 100 0 0 0 0 1820 ± 220
4-Hydroxybutyrate (1.2 mM) 50 ± 4 91.5 0 9.5 0 0 1720 ± 240
Valerate (1.2 mM) 54 ± 4 75.0 25.0 0 0 0 1760 ± 160
5-Hydroxyvalerate (1.2 mM) 48 ± 4 95.0 1.4 0 3.6 0 1640 ± 180
Hexanoate (1.2 mM) 56 ± 4 100 0 0 0 0 1740 ± 200
6-Hydroxyhexanoate (1.2 mM) 48 ± 3 97.6 0 1.0 0 1.4 1680 ± 220
Octanoate (1.2 mM) 54 ± 3 100 0 0 0 0 1720 ± 180