Biofuels: In-flight insights

Gallagher, James

doi:10.1038/nenergy.2017.65

Cited by 3 publications

(2 citation statements)

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“…Third, although aircraft generally fly in the stratosphere, there is still much water vapor, suspended solid particles, impurities, etc., which are easy to mix with carbon dioxide, increasing the harm. 3 , 4 Generally, the flight process consists of seven steps: Engine Starting, Taxiing, Taking Off, Climbing, Cruising, Descending, and Landing. 5 It is usually divided into the Landing and Take-Off (LTO) cycle and the Climb/Cruise/Descent (CCD) stage.…”

Section: Before You Beginmentioning

confidence: 99%

Protocol to calculate aircraft emissions for international air routes in South America

Cui

Lei

2023

STAR Protocols

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Section: Before You Beginmentioning

confidence: 99%

Protocol to calculate aircraft emissions for international air routes in South America

Cui

Lei

2023

STAR Protocols

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“…8.4b). According to Gallagher (2008), around 1% of total global cropland was used for biofuel production in 2006. OECD/FAO (2016) predicts an increase in production of 11.1% for biodiesel and 31.1% for ethanol by 2025.…”

Section: Developments On the Markets For Biobased Products (And Resoumentioning

confidence: 99%

Markets, Sustainability Management and Entrepreneurship

et al. 2017

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Sustainable production of photosynthetic isobutanol and 3-methyl-1-butanol in the cyanobacterium Synechocystis sp. PCC 6803

Xie,

Kjellström,

Lindblad

2023

Biotechnol Biofuels

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Background Cyanobacteria are emerging as green cell factories for sustainable biofuel and chemical production, due to their photosynthetic ability to use solar energy, carbon dioxide and water in a direct process. The model cyanobacterial strain Synechocystis sp. PCC 6803 has been engineered for the isobutanol and 3-methyl-1-butanol production by introducing a synthetic 2-keto acid pathway. However, the achieved productions still remained low. In the present study, diverse metabolic engineering strategies were implemented in Synechocystis sp. PCC 6803 for further enhanced photosynthetic isobutanol and 3-methyl-1-butanol production. Results Long-term cultivation was performed on two selected strains resulting in maximum cumulative isobutanol and 3-methyl-1-butanol titers of 1247 mg L−1 and 389 mg L−1, on day 58 and day 48, respectively. Novel Synechocystis strain integrated with a native 2-keto acid pathway was generated and showed a production of 98 mg isobutanol L−1 in short-term screening experiments. Enhanced isobutanol and 3-methyl-1-butanol production was observed when increasing the kivdS286T copy number from three to four. Isobutanol and 3-methyl-1-butanol production was effectively improved when overexpressing selected genes of the central carbon metabolism. Identified genes are potential metabolic engineering targets to further enhance productivity of pyruvate-derived bioproducts in cyanobacteria. Conclusions Enhanced isobutanol and 3-methyl-1-butanol production was successfully achieved in Synechocystis sp. PCC 6803 strains through diverse metabolic engineering strategies. The maximum cumulative isobutanol and 3-methyl-1-butanol titers, 1247 mg L−1 and 389 mg L−1, respectively, represent the current highest value reported. The significantly enhanced isobutanol and 3-methyl-1-butanol production in this study further pave the way for an industrial application of photosynthetic cyanobacteria-based biofuel and chemical synthesis from CO2.

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Biofuels: In-flight insights

Cited by 3 publications

References 0 publications

Protocol to calculate aircraft emissions for international air routes in South America

Protocol to calculate aircraft emissions for international air routes in South America

Markets, Sustainability Management and Entrepreneurship

Sustainable production of photosynthetic isobutanol and 3-methyl-1-butanol in the cyanobacterium Synechocystis sp. PCC 6803

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