Cupriavidus eutrophus VKPM B-10646 BACTERIA STRAIN - PRODUCER OF POLYHYDROXY ALKANOATES AND PRODUCTION METHOD THEREOF Russian patent published in 2012 - IPC C12N1/20 C12P7/62 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to biotechnology and a Cupriavidus eutrophus VKPM B-10646 bacteria strain which produces polyhydroxy alkanoates (PHA) and a method of producing said strain. The strain is isolated from Ralstonia eutropha VKPM B-8562 during long multi-step selection based on effectiveness of synthesis of multicomponent PHA. PHA is obtained by culturing the strain in conditions of aeration and mixing on a liquid salt medium with limited nitrogen. The medium contains a growing substrate with an additional carbon source. The growing substrate used is glucose or fructose or 3-butyric acid or a gaseous mixture - hydrogen, oxygen and carbon dioxide, or synthetic gas mixed with oxygen. The additional carbon source used is a solution of potassium 3-valarate or solution of potassium 3-valerate and potassium 3-hexanoate, or solution of potassium 3-valerate, potassium 3-hexanoate and acrylate, or solution of potassium 3-valerate, or solution of potassium 3-hexanoate and acrylate, or solution of 3-butyric acid and 4-butyrolactone, or solution of 3-butyric acid, 4- butyrolactone and potassium 3-valerate, or solution of 3-butyric acid, 4- butyrolactone and potassium 3-hexanoate, or solution of 3-butyric acid, 4- butyrolactone, potassium 3-valerate and potassium 3-hexanoate.

EFFECT: invention enables to obtain polyhydroxy alkanoate producer with high output.

2 cl, 1 tbl, 15 ex