Direct carbon capture for the production of high-performance biodegradable plastics by cyanobacterial cell factories

Tan, Chunlin; Tao, Fei; Xu, Ping

doi:10.1039/d1gc04188f

Cited by 30 publications

(11 citation statements)

References 88 publications

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“…With the rapid development of biochemical engineering and genetic engineering technology, the biological capture, transformation and utilization of carbon dioxide have made rapid progress as value-added products 45 . Tan et al 46 directly synthesized a degradable plastic PLA from carbon dioxide for the first time in the world, using a combination strategy of metabolic engineering and high-density culture on a light driven cyanobacteria platform. Carbon fixation can not only slow down the greenhouse effect, but also realize non grain fermentation 47 .…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Zhang

Liu

Chen

2023

Sci Rep

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Hot springs are extreme ecological environments of microbes. The study is the first comparative analysis of bacterial diversity of Tangchi and Bantang hot spring water samples collected in Hefei, China, which is conducive to the further development and utilization of microbial resources in hot springs. Illumina MiSeq system was utilized to sequence and analyze the bacterial 16S rRNA gene from hot spring water samples by bioinformatics, to probe into the bacterial abundance and diversity of two hot springs in Hefei. Results revealed that prevalent bacterial phyla in Tangchi hot spring were Bacillota and Aquificota, and the prevalent bacterial genus was Hydrogenobacter; prevalent phyla in Bantang hot spring were Pseudomonadota followed by Actinobacteriota, and prevalent genera were CL500-29_marine_group and Polynucleobacter. More species and higher evenness in Bantang hot spring than those in Tangchi hot spring. In MetaCyc pathway analysis, the major pathways of metabolism existed in the bacteria from the two hot springs were ‘pyruvate fermentation to isobutanol (engineered)’, ‘acetylene degradation’, ‘carbon fixation pathways in prokaryotes’, ‘nitrate reduction I (denitrification)’, ‘methanogenesis from acetate’, ‘superpathway of glucose and xylose degradation’, etc.

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Section: Discussionmentioning

confidence: 99%

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Zhang

Liu

Chen

2023

Sci Rep

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“…Using the evolved propionyl-CoA transferase and PHA synthase, lactic acid in microbial cells is first converted to lactyl-CoA and then polymerized to PLA. 33 , 50 , 51 This pathway can support the direct synthesis of PLA polymers in microbial cells, thereby circumventing the complex and expensive chemical polymerization of lactic acid. However, limited by the substrate specificity of propionyl-CoA transferase and PHA synthase, the yield of PLA per dry cell weight is much lower than that of PHB, which greatly increases production costs.…”

Section: Bio-based Production For Biodegradable Plastics and Their Mo...mentioning

confidence: 99%

Microbial cell factories for bio-based biodegradable plastics production

et al. 2022

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“…However, the manufacturing of PLAS needs sugar-based feedstocks (e.g., corn starch), which potentially causes competition with food. 10,11 Starch-based straws are also an option for biodegradable straws 12,13 but still face similar dilemmas as PLAS. In addition, Liu et al reported a method to prepare seaweed-based straws as alternatives to plastic straws.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Straws from Agricultural Waste Fibers with Excellent Toughness, Water Resistance, and Biodegradability

Yi,

Fu,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

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The mass consumption of plastic straws already seriously causes environmental pollution and harms human health, which urgently requires the manufacture of eco-friendly straws as alternatives. Herein, a facile approach was reported for producing tough, water-resistant, and biodegradable lignocellulose straws. The renewable agricultural residue (i.e., rice stalk) was pretreated with a deep eutectic solvent to redistribute lignin from the stalk fibers and obtain two cellulosic materials: lignin-regenerated cellulosic fiber (LRCF) and lignin-dissolved cellulosic fiber (LDCF). The LRCF and LDCF were refined and fibrillated and subsequently utilized to form a wet film. The wet film was then rolled into a tube without any adhesives and dried as straw products. The obtained straws exhibited excellent mechanical properties (maximum tensile strength and toughness of 90.2 MPa and 15.3 MJ/m 3 , respectively), water resistance (maximum water contact angle of 95.34°), and natural biodegradability (the fastest complete degradation in 25 days). These straws are fully derived from lignocellulose biomass and provide environmentally friendly alternatives to plastic straws.

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Direct carbon capture for the production of high-performance biodegradable plastics by cyanobacterial cell factories

Abstract: Plastic pollution caused by non-biodegradable plastics is one of the most widely discussed and notable challenges of the 21st century. Developing biodegradable plastics, such as polylactic acid (PLA), is broadly...

Cited by 30 publications

References 88 publications

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Microbial cell factories for bio-based biodegradable plastics production

Sustainable Straws from Agricultural Waste Fibers with Excellent Toughness, Water Resistance, and Biodegradability

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