Recent advances in microbial production of medium chain fatty acid from renewable carbon resources: A comprehensive review

Ahn, Jung Ho; Jung, Kyu-Seok; Lim, Eunhoon; Kim, Sang Min; Han, Sung Ok; Um, Youngsoon

doi:10.1016/j.biortech.2023.129147

Cited by 18 publications

(2 citation statements)

References 104 publications

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“…In this study, we observed that LCFAs are the predominant type of FAs for all the studied bacteria as was previously shown (Mez} o et al, 2022;Řezanka & Sigler, 2009). Earlier, it was reported that the production of MCFAs can naturally occur in both Gram-negative and Gram-positive bacteria (Ahn et al, 2023) and we detected the production of MCFAs in trace amounts in mainly Gram-negative bacteria from genera Pseudomonas, Shewanella, Acinetobacter and Flavobacterium. Furthermore, we found that the production of MCFAs increased along with temperature increases for the genera Pseudomonas, Acinetobacter and Flavobacterium.…”

Section: Discussionsupporting

confidence: 82%

Explorative characterization and taxonomy‐aligned comparison of alterations in lipids and other biomolecules in Antarctic bacteria grown at different temperatures

Akulava,

Smirnova,

Byrtusova

et al. 2024

Environ Microbiol Rep

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Temperature significantly impacts bacterial physiology, metabolism and cell chemistry. In this study, we analysed lipids and the total cellular biochemical profile of 74 fast‐growing Antarctic bacteria grown at different temperatures. Fatty acid diversity and temperature‐induced alterations aligned with bacterial classification—Gram‐groups, phylum, genus and species. Total lipid content, varied from 4% to 19% of cell dry weight, was genus‐ and species‐specific. Most bacteria increased lipid content at lower temperatures. The effect of temperature on the profile was complex and more species‐specific, while some common for all bacteria responses were recorded. Gram‐negative bacteria adjusted unsaturation and acyl chain length. Gram‐positive bacteria adjusted methyl branching (anteiso‐/iso‐), chain length and unsaturation. Fourier transform infrared spectroscopy analysis revealed Gram‐, genus‐ and species‐specific changes in the total cellular biochemical profile triggered by temperature fluctuations. The most significant temperature‐related alterations detected on all taxonomy levels were recorded for mixed region 1500–900 cm−1, specifically the band at 1083 cm−1 related to phosphodiester groups mainly from phospholipids (for Gram‐negative bacteria) and teichoic/lipoteichoic acids (for Gram‐positive bacteria). Some changes in protein region were detected for a few genera, while the lipid region remained relatively stable despite the temperature fluctuations.

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Section: Discussionsupporting

confidence: 82%

Explorative characterization and taxonomy‐aligned comparison of alterations in lipids and other biomolecules in Antarctic bacteria grown at different temperatures

Akulava,

Smirnova,

Byrtusova

et al. 2024

Environ Microbiol Rep

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“…Fatty acids with 10–18 carbons are common hydrolysates of grease and show good sustainability and renewability, , which provide practical options for synthesizing corresponding fatty acyl chlorides and then preparing eco-friendly materials based on renewable resources. In this work, a series of FACE containing 10–18 carbons in side chains were synthesized through our previously reported “one-step” ball-milling esterification strategy.…”

Section: Introductionmentioning

confidence: 99%

Insight into the Feasibility of Fatty Acyl Chlorides with 10–18 Carbons for the Ball-Milling Synthesis of Thermoplastic Cellulose Esters

Hou,

Li,

Zhang

et al. 2024

Biomacromolecules

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Fatty acid cellulose esters (FACE) are common cellulose-based thermoplastics, and their thermoplasticity is determined by both the contents and the lengths of the side chains. Herein, various FACE were synthesized by the ball-milling esterification of cellulose and fatty acyl chlorides containing 10−18 carbons, and their structures and thermoplasticity were thoroughly studied. The results showed that FACE with high degrees of substitution (DS) and low melting flow temperatures (T f ) were achieved as the chain lengths of the fatty acyl chlorides were reduced. In particular, a cellulose decanoate with a DS of 1.85 and a T f of 186 °C was achieved by feeding 3 mol of decanoyl chloride per mole anhydroglucose units of cellulose. However, cellulose stearate (DS = 1.53) synthesized by the same protocols cannot melt even at 250 °C. More interestingly, the fatty acyl chlorides with 10 and 12 carbons resulted in FACE with superior toughness (elongation at break up to 94.4%). In contrast, due to their potential crystallization of the fatty acyl groups with 14−18 carbons, the corresponding FACE showed higher tensile strength and Young's modulus than the others. This study provides some theoretical basis for the mechanochemical synthesis of thermoplastic FACE with designated properties.

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A Recyclable Energy Storage Wood Composite with Photothermal Conversion Properties for Regulating Building Temperature

Chen,

Zheng,

Yang

et al. 2024

Advanced Sustainable Systems

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Addressing the challenges of energy storage liquid leakage and long‐term stability in energy storage is crucial for achieving sustainable energy efficiency. In this study, polymethyl methacrylate (PMMA) is innovatively employed as an encapsulation film on the surface of the wood‐based phase change material, resulting in a recyclable wood‐based composite energy storage material (PPW). A novel energy storage liquid (PCMs) composed of lauric acid (LA), capric acid (CA), and polyethylene glycol (PEG) is immersed in the pretreated porous wood frame through vacuum impregnation. The PCMs imparted a phase change temperature of 21.0 °C, which is close to human comfort levels, and a high energy storage efficiency of 31.6 J g−1 to the PPW. Additionally, the PCMs provided the PPW with a photothermal conversion efficiency of 29.3%. Even after 200 freeze‐thaw cycles, the energy storage properties of the PPW remained nearly unchanged. Therefore, utilizing PMMA as an effective encapsulation material is a viable approach to prevent leakage of the phase change solution and enhance the recyclability of the PPW. Furthermore, the transparency of PMMA preserves the natural appearance of the wood, thereby broadening the application potential of PPW in residential buildings, thermal energy storage, and solar thermal conversion systems.

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Recent advances in microbial production of medium chain fatty acid from renewable carbon resources: A comprehensive review

Cited by 18 publications

References 104 publications

Explorative characterization and taxonomy‐aligned comparison of alterations in lipids and other biomolecules in Antarctic bacteria grown at different temperatures

Explorative characterization and taxonomy‐aligned comparison of alterations in lipids and other biomolecules in Antarctic bacteria grown at different temperatures

Insight into the Feasibility of Fatty Acyl Chlorides with 10–18 Carbons for the Ball-Milling Synthesis of Thermoplastic Cellulose Esters

A Recyclable Energy Storage Wood Composite with Photothermal Conversion Properties for Regulating Building Temperature

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