We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Poly-β-Hydroxybutyrate Production by the Cyanobacterium Scytonema geitleri Bharadwaja under Varying Environmental Conditions
AI summary Read the abstract
A cyanobacterium (blue-green alga) was found to produce a natural biodegradable plastic called PHB, with production rates affected by temperature, pH, and carbon source. This could be relevant to developing bio-based alternatives to petroleum-derived plastics.
The production of poly-β-hydroxybutyrate (PHB) under varying environmental conditions (pH, temperature and carbon sources) was examined in the cyanobacterium Scytonema geitleri Bharadwaja isolated from the roof-top of a building. The S. geitleri produced PHB and the production of PHB was linear with the growth of cyanobacterium. The maximum PHB production (7.12% of dry cell weight) was recorded when the cells of S. geitleri were at their stationary growth phase. The production of PHB was optimum at pH 8.5 and 30 °C, and acetate (30 mM) was the preferred carbon source.
More Papers Like This
A Review of PHB Production by Cyanobacteria and Its Applications
AI summary Read the abstract
This review examines cyanobacteria as photoautotrophic producers of polyhydroxybutyrate (PHB) bioplastic, summarizing how nutrient-stress conditions stimulate PHB accumulation and evaluating the cost-effectiveness and sustainability of using cyanobacteria as an alternative to conventional feedstocks for biodegradable plastic production.
Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714
AI summary Read the abstract
This study investigated Synechocystis sp. PCC 6714 as a cyanobacterium for producing the biodegradable plastic precursor poly-beta-hydroxybutyrate (PHB) directly from CO2 via photosynthesis. Photosynthetic PHB production could reduce costs and improve the sustainability of this bioplastic alternative to petroleum-derived polymers.
Production of polyhydroxybutyrate (PHB) in Scenedesmus acutus using a low-cost substrate
AI summary Read the abstract
Researchers cultivated the microalga Scenedesmus acutus on low-cost substrates to produce polyhydroxybutyrate (PHB), a biodegradable bioplastic, demonstrating a cost-effective route toward replacing conventional petroleum-based plastics that persist as microplastic pollutants.
Poly-β-hydroxybutyrate production by Synechocystis MT_a24 in a raceway pond using urban wastewater
AI summary Read the abstract
This study tested whether cyanobacteria could produce a biodegradable plastic called PHB while growing in urban wastewater outdoors. Researchers found that the organisms achieved one of the highest PHB yields reported for this type of production, reaching nearly 24% of their dry weight. The approach also removed significant amounts of nitrogen and phosphorus from the wastewater, suggesting a promising path toward sustainable bioplastic production.
Leptolyngbya sp. NIVA-CYA 255, a Promising Candidate for Poly(3-hydroxybutyrate) Production under Mixotrophic Deficiency Conditions
AI summary Read the abstract
Researchers investigated the cyanobacterium Leptolyngbya sp. NIVA-CYA 255 as a candidate for biodegradable poly(3-hydroxybutyrate) (PHB) bioplastic production, finding that a three-stage cultivation process combining phototrophic nitrogen/phosphorus depletion followed by mixotrophic sodium acetate supplementation enhanced PHB accumulation, confirmed by FTIR, GC-MS, and fluorescent dye analyses.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.