Characterization of a newly isolated cyanobacterium Plectonema terebrans for biotransformation of the wastewater-derived nutrients to biofuel and high-value bioproducts

摘要: Abstract Cultivating photosynthetic microbes in city wastewater may help to achieve environmental sustainability owing concomitant pollutant removal, biological transformation of the nutrients into bioproducts, and atmospheric carbon fixation. Cyanobacteria are most efficient fixers along with microalgae. The present study was focused on optimizing growth conditions for a newly isolated filamentous cyanobacterium Plectonema terebrans BERC10 enhanced biomass metabolite productivity multiproduct biorefinery using various compositions synthetic wastewaters. Higher 140 mg L−1 d−1 (dried mass) CO2 sequestration rate 250 day−1 achieved by mimicking summer (32 ± 2 °C) cultivation conditions, which further favored wastewater-derived alkalinity (pH 10.0–11.0). produced rich carbohydrates lipids, having 58.68 mgg−1d−1 39.25 carbohydrate lipid productivities, respectively. While winter (22 higher protein (34.49 mgg−1d−1) when compared conditions. Additionally, response excessive 10.0), it 180-198 mgg-1 phycobilins. Considering concept, phycobilins were extracted lipids from residual converted biodiesel analyzed gas chromatography-mass spectrometry (GC–MS). Intrestingly, phycobilin extraction had no negative impact quality content biomass. These features make promising candidate derived biofuels bioproducts.