Patent ID: 8618245

Claim:
Obtainment process of polyhydroxcyalkanoate (PHA) from the citric residue, wherein it comprises the following steps: a) obtaining a pressing liquor and/or citric molasses; b) physical-chemical treating of the material obtained in the step a to obtain a supernatant material; c) preparing a culture medium for the production of PHA wherein in the step c, the culture medium is prepared through an addition of essential nutrients to the culture process to the supernatant material and the added nutrients are selected among nitrogen, phosphor, sulphur, magnesium, potassium, oxygen, oligonutrients or a mixture of them; d) conducting a culture process on said culture medium at a temperature of 25Â° C. to 40Â° C., and wherein the oligonutrients are selected among molybdenum, manganese, cobalt, zinc, nickel, copper and boron, and a mixture of them.