Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6
Arctic bacteria employ various mechanisms to survive harsh conditions, one of which is to accumulate carbon and energy inside the cell in the form of polyhydroxyalkanoate (PHA). Whole-genome sequencing of a new Arctic soil bacterium <i>Pseudomonas</i> sp. B14-6 revealed two PHA-productio...
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doaj-c311799de67a47c5a2605ec2f0033cda2021-04-26T23:02:03ZengMDPI AGPolymers2073-43602021-04-01131398139810.3390/polym13091398Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6Tae-Rim Choi0Ye-Lim Park1Hun-Suk Song2Sun Mi Lee3Sol Lee Park4Hye Soo Lee5Hyun-Joong Kim6Shashi Kant Bhatia7Ranjit Gurav8Kwon-Young Choi9Yoo Kyung Lee10Yung-Hun Yang11Department of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaDepartment of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon-si 16499, Gyeonggi-do, KoreaPolar Research Institute, Incheon 21990, KoreaDepartment of Biological Engineering, College of Engineering, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, KoreaArctic bacteria employ various mechanisms to survive harsh conditions, one of which is to accumulate carbon and energy inside the cell in the form of polyhydroxyalkanoate (PHA). Whole-genome sequencing of a new Arctic soil bacterium <i>Pseudomonas</i> sp. B14-6 revealed two PHA-production-related gene clusters containing four PHA synthase genes (<i>phaC</i>). <i>Pseudomonas</i> sp. B14-6 produced poly(6% 3-hydroxybutyrate-<i>co</i>-94% 3-hydroxyalkanoate) from various carbon sources, containing short-chain-length PHA (scl-PHA) and medium-chain-length PHA (mcl-PHA) composed of various monomers analyzed by GC-MS, such as 3-hydroxybutyrate, 3-hydroxyhexanoate, 3-hydroxyoctanoate, 3-hydroxydecanoate, 3-hydroxydodecenoic acid, 3-hydroxydodecanoic acid, and 3-hydroxytetradecanoic acid. By optimizing the PHA production media, we achieved 34.6% PHA content using 5% fructose, and 23.7% PHA content using 5% fructose syrup. Differential scanning calorimetry of the scl-<i>co</i>-mcl PHA determined a glass transition temperature (T<sub>g</sub>) of 15.3 °C, melting temperature of 112.8 °C, crystallization temperature of 86.8 °C, and 3.82% crystallinity. In addition, gel permeation chromatography revealed a number average molecular weight of 3.6 × 10<sup>4</sup>, weight average molecular weight of 9.1 × 10<sup>4</sup>, and polydispersity index value of 2.5. Overall, the novel <i>Pseudomonas</i> sp. B14-6 produced a polymer with high medium-chain-length content, low T<sub>g</sub>, and low crystallinity, indicating its potential use in medical applications.https://www.mdpi.com/2073-4360/13/9/1398<i>Pseudomonas</i> strainpolyhydroxyalkanoatefructose syrupfermentation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tae-Rim Choi Ye-Lim Park Hun-Suk Song Sun Mi Lee Sol Lee Park Hye Soo Lee Hyun-Joong Kim Shashi Kant Bhatia Ranjit Gurav Kwon-Young Choi Yoo Kyung Lee Yung-Hun Yang |
spellingShingle |
Tae-Rim Choi Ye-Lim Park Hun-Suk Song Sun Mi Lee Sol Lee Park Hye Soo Lee Hyun-Joong Kim Shashi Kant Bhatia Ranjit Gurav Kwon-Young Choi Yoo Kyung Lee Yung-Hun Yang Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 Polymers <i>Pseudomonas</i> strain polyhydroxyalkanoate fructose syrup fermentation |
author_facet |
Tae-Rim Choi Ye-Lim Park Hun-Suk Song Sun Mi Lee Sol Lee Park Hye Soo Lee Hyun-Joong Kim Shashi Kant Bhatia Ranjit Gurav Kwon-Young Choi Yoo Kyung Lee Yung-Hun Yang |
author_sort |
Tae-Rim Choi |
title |
Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 |
title_short |
Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 |
title_full |
Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 |
title_fullStr |
Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 |
title_full_unstemmed |
Fructose-Based Production of Short-Chain-Length and Medium-Chain-Length Polyhydroxyalkanoate Copolymer by Arctic <i>Pseudomonas</i> sp. B14-6 |
title_sort |
fructose-based production of short-chain-length and medium-chain-length polyhydroxyalkanoate copolymer by arctic <i>pseudomonas</i> sp. b14-6 |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2021-04-01 |
description |
Arctic bacteria employ various mechanisms to survive harsh conditions, one of which is to accumulate carbon and energy inside the cell in the form of polyhydroxyalkanoate (PHA). Whole-genome sequencing of a new Arctic soil bacterium <i>Pseudomonas</i> sp. B14-6 revealed two PHA-production-related gene clusters containing four PHA synthase genes (<i>phaC</i>). <i>Pseudomonas</i> sp. B14-6 produced poly(6% 3-hydroxybutyrate-<i>co</i>-94% 3-hydroxyalkanoate) from various carbon sources, containing short-chain-length PHA (scl-PHA) and medium-chain-length PHA (mcl-PHA) composed of various monomers analyzed by GC-MS, such as 3-hydroxybutyrate, 3-hydroxyhexanoate, 3-hydroxyoctanoate, 3-hydroxydecanoate, 3-hydroxydodecenoic acid, 3-hydroxydodecanoic acid, and 3-hydroxytetradecanoic acid. By optimizing the PHA production media, we achieved 34.6% PHA content using 5% fructose, and 23.7% PHA content using 5% fructose syrup. Differential scanning calorimetry of the scl-<i>co</i>-mcl PHA determined a glass transition temperature (T<sub>g</sub>) of 15.3 °C, melting temperature of 112.8 °C, crystallization temperature of 86.8 °C, and 3.82% crystallinity. In addition, gel permeation chromatography revealed a number average molecular weight of 3.6 × 10<sup>4</sup>, weight average molecular weight of 9.1 × 10<sup>4</sup>, and polydispersity index value of 2.5. Overall, the novel <i>Pseudomonas</i> sp. B14-6 produced a polymer with high medium-chain-length content, low T<sub>g</sub>, and low crystallinity, indicating its potential use in medical applications. |
topic |
<i>Pseudomonas</i> strain polyhydroxyalkanoate fructose syrup fermentation |
url |
https://www.mdpi.com/2073-4360/13/9/1398 |
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