Table 1. Comparison on cellular growth and PHB content from three strains of halotolerant photosynthetic bacteria after cultivation in GM medium (pH 7.0) on a shaker (150 rpm) at 37ºC for 96 hrs.

Strain

μ
(h^-1)

Maximum growth

PHB

DCW^a
(g/l)

Conc.
(g/l)

Content^b
(%of DCW)

 R. sphaeroides ES16

0.021

7.44 ± 0.20

1.45 ± 0.15

19.5

 R. sphaeroides N20

0.022

8.23 ± 0.09

4.44 ± 0.23

53.9

   R. sphaeroides U7

0.022

8.12 ± 0.11

3.41 ± 0.22

42.0