type 1. WFO type 2 was chosen for further studies since it enhanced the
production of the polymer to reach the maximum (30 % content and 0.69 gl-1
)
after 60 h comparing with those obtained using WFO type 1 . Regarding to
polymer parameters using WFO type 2, the highest values of PHAs yield, and
productivity were 9.14 % and 0.012 gl-1
h
-1
, respectively. In the same regard
Fern´andez et al. (2005) reported that PHA accumulation ranged between 66.1%,
29.4% and 16.8% when waste-free fatty acids (from soybean oil) (WFFA), waste
frying oil (WFO) and glucose were used as carbon substrate by Pseudomonas
aeruginosa 42A2, respectively.