Fatty acids are desirable feedstock for PHAs production
because they are relatively cheap compared to most sugars.
Although the production of PHAs using sugars has been
optimized to achieve high productivity, the cost of production
is still high because sugars contribute to low PHAs yield. In
addition, the theoretical yield coefficient of PHA from fatty
acid (e.g., 0.65-0.98 kg/kg from butyric acid) is considerably
higher than that from glucose (0.32-0.48 kg/kg) (Reddy et al.
2003)