Electrospun Fibres of Polyhydroxybutyrate Synthesized by Ralstonia eutropha from Different Carbon Sources

Table 3

Thermal properties of electrospun fibres of PHB from olive oil (O-PHB), rapeseed oil (R-PHB), and glucose (G-PHB) with solution concentrations of 1.5%, 2%, and 2.5%: = melting temperature and = crystallisation temperature on cooling, and = crystallinity.

Polymer	Nonelectrospun			Polymer solution concentrations (%wt/v) during electrospinning
				1.5			2			2.5
	(°C)	(°C)	(%)	(°C)	(°C)	(%)	(°C)	(°C)	(%)	(°C)	(°C)	(%)
O-PHB	173.2	121.6	54.2	120.4	173.1	45.8	121.7	173.1	52.2	122.2	174.1	53.4
R-PHB	172.2	120.8	52.2	121.4	171.9	41.9	121.9	171.2	42.1	121.9	173.4	47.4
G-PHB	172.5	118.6	53.5	120.8	173.2	50.2	116.5	171.5	51.1	118.6	166.4	52.6