Biopolymer polyhydroxyalkanoate production from Arthrospira platensis NLHT3 cyanobacterium isolated in Vietnam
Year: 2024
Type: article
Abstract: Cyanobacteria are photosynthesis microorganisms that can convert CO2 into biomass using light as an energy source. Cyanobacteria can also produce polyhydroxyalkanoates (PHA) for intracellular energy and carbon storage, especially under nutrient-deficient conditions. This study investigated the effects of nutrient media and culturing conditions on PHA accumulation in the cyanobacterium Arthrospira platensis NLHT3. PHA accumulation in A. platensis NLHT3 reached the optimum value of 28.2% after 15 days of cultivation with supplemented mixture of 0.1 M of NaHCO3 and 94 mM of C3H5NaO2 (sodium propionate) as carbon sources, 12 mM of NaNO3 as nitrogen source, and 1.7 mM of K2HPO4 as phosphorous source. An even higher PHA accumulation of 39% was achieved when light intensity increased from 75 to 108 µmol photons m-2 s-1 at the same light/dark cycle of 16h/8h and the abovementioned carbon and nutrient concentrations.
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,440
Award: G5133985085
OpenAlex ID: W4403015873