Hydrocarbons, the advanced biofuels produced by different organisms, the evidence that alkanes in petroleum can be renewable

Fu, Wen-Juan; Chi, Zhe; Ma, Zai-Chao; Zhou, Hai‐Xiang; Liu, Guanglei; Lee, Ching-Fu; Chi, Zhen‐Ming

doi:10.1007/s00253-015-6840-6

Cited by 36 publications

(14 citation statements)

References 47 publications

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“…Many other Eubacteria are able to synthesize alkanes, although most of them show the same limitations displayed by cyanobacteria: they only produce low amounts of alka(e)nes (in the order of 0.005–0.25% of dry biomass (Ladygina et al ., ; Coates et al ., ), and they produce them intracellularly and therefore are difficult to separate and purify from the cells (Jansson, ; Fu et al ., ). In cyanobacteria alka(e)nes are usually found in lipid droplets (LD), packed with several hydrophobic energy‐dense compounds surrounded by a lipid mono‐layer (Peramuna and Summers, ).…”

Section: Fermentation Of Sugars To Alka(e)nes: State Of the Artmentioning

confidence: 97%

Microbial alkane production for jet fuel industry: motivation, state of the art and perspectives

Jiménez-Díaz

Caballero

Pérez-Hernández

et al. 2016

Microbial Biotechnology

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SummaryBio‐jet fuel has attracted a lot of interest in recent years and has become a focus for aircraft and engine manufacturers, oil companies, governments and researchers. Given the global concern about environmental issues and the instability of oil market, bio‐jet fuel has been identified as a promising way to reduce the greenhouse gas emissions from the aviation industry, while also promoting energy security. Although a number of bio‐jet fuel sources have been approved for manufacture, their commercialization and entry into the market is still a far way away. In this review, we provide an overview of the drivers for intensified research into bio‐jet fuel technologies, the type of chemical compounds found in bio‐jet fuel preparations and the current state of related pre‐commercial technologies. The biosynthesis of hydrocarbons is one of the most promising approaches for bio‐jet fuel production, and thus we provide a detailed analysis of recent advances in the microbial biosynthesis of hydrocarbons (with a focus on alkanes). Finally, we explore the latest developments and their implications for the future of research into bio‐jet fuel technologies.

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Section: Fermentation Of Sugars To Alka(e)nes: State Of the Artmentioning

confidence: 97%

Microbial alkane production for jet fuel industry: motivation, state of the art and perspectives

Jiménez-Díaz

Caballero

Pérez-Hernández

et al. 2016

Microbial Biotechnology

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“…Our results indicate that several n-alkane synthesis complexes are required to carry out the production of the very broad range of chain lengths in alkanes found in plants, from 25 up to 37 carbon atoms in leaves of Arabidopsis, for example (Bernard and Joubès, 2013;Hegebarth et al, 2017). A variety of other organisms such as bacteria, yeasts, fungi, insects, and microalgae can convert fatty acids into hydrocarbons; nevertheless, enzymes involved in alka(e)ne biosynthesis are not conserved across kingdoms, and a wide variety of pathways for hydrocarbon biosynthesis have been identified in recent years (Fu et al, 2015;Jiménez-Díaz et al, 2017). To our knowledge, only plants seem to have evolved multiple alkane-forming complexes with different chain-length substrate specificities to produce n-alkanes with a broad range of chain lengths (Fig.…”

Section: Plantmentioning

confidence: 99%

Arabidopsis CER1-LIKE1 Functions in a Cuticular Very-Long-Chain Alkane-Forming Complex

et al. 2018

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Plant aerial organs are coated with cuticular waxes, a hydrophobic layer that primarily serves as a waterproofing barrier. Cuticular wax is a mixture of aliphatic very-long-chain molecules, ranging from 22 to 48 carbons, produced in the endoplasmic reticulum of epidermal cells. Among all wax components, alkanes represent up to 80% of total wax in Arabidopsis (Arabidopsis thaliana) leaves. Odd-numbered alkanes and their derivatives are produced through the alkane-forming pathway. Although the chemical reactions of this pathway have been well described, the enzymatic mechanisms catalyzing these reactions remain unclear. We previously showed that a complex made of Arabidopsis ECERIFERUM1 (CER1) and CER3 catalyzes the conversion of acyl-Coenzyme A's to alkanes with strict substrate specificity for compounds containing more than 29 carbons. To learn more about alkane biosynthesis in Arabidopsis, we characterized the biochemical specificity and physiological functions of a CER1 homolog, CER1-LIKE1. In a yeast strain engineered to produce very-long-chain fatty acids, CER1-LIKE1 interacted with CER3 and cytochrome B5 to form a functional complex leading to the production of alkanes that are of different chain lengths compared to that produced by CER1-containing complexes. Gene expression analysis showed that both CER1 and CER1-LIKE1 are differentially expressed in an organ-and tissue-specific manner. Moreover, the inactivation or overexpression of CER1-LIKE1 in Arabidopsis transgenic lines specifically impacted alkane biosynthesis and wax crystallization. Collectively, our study reports on the identification of a further plant alkane synthesis enzymatic component and supports a model in which several alkane-forming complexes with distinct chain-length specificities coexist in plants.

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“…Decane (alkane hydrocarbon, anhydrous, ≥99%, C 10 H 22 ) [37,38,39,40,41,42], a major constituent of petroleum, represents the petroleum contaminant in soils [43,44,45]. …”

Section: Literature Reviewmentioning

confidence: 99%

Characterization of a Polyacrylamide Solution Used for Remediation of Petroleum Contaminated Soils

2016

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Biopolymers are viewed as effective and eco-friendly agents in soil modification. This study focuses on the wettability analysis of polyacrylamide (PAM) solutions for soil remediation. The contact angle, surface tension, and viscosity of PAM solutions were experimentally evaluated in air- and decane-biopolymer solution systems. Furthermore, a micromodel was used to investigate the pore-scale displacement phenomena during the injection of the PAM solution in decane and or air saturated pores. The contact angle of the PAM solution linearly increases with increasing concentration in air but not in decane. The surface tension between the PAM solution and air decreases at increasing concentration. The viscosity of the PAM solution is highly dependent on the concentration of the solution, shear rate, and temperature. Low flow rate and low concentration result in a low displacement ratio level, which is defined as the volume ratio between the injected and the defended fluids in the pores. The displacement ratio is higher for PAM solutions than distilled water; however, a higher concentration does not necessarily guarantees a higher displacement ratio. Soil remediation could be conducted cost-efficiently at high flow rates but with moderate concentration levels.

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Hydrocarbons, the advanced biofuels produced by different organisms, the evidence that alkanes in petroleum can be renewable

Cited by 36 publications

References 47 publications

Microbial alkane production for jet fuel industry: motivation, state of the art and perspectives

Microbial alkane production for jet fuel industry: motivation, state of the art and perspectives

Arabidopsis CER1-LIKE1 Functions in a Cuticular Very-Long-Chain Alkane-Forming Complex

Characterization of a Polyacrylamide Solution Used for Remediation of Petroleum Contaminated Soils

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