Literature DB >> 16827589

Sequence distribution in microbial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) co-polyesters determined by NMR and MS.

Ema Zagar1, Andrej Krzan, Grazyna Adamus, Marek Kowalczuk.   

Abstract

The microstructure of bacterial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolyesters (PHBV) as well as a mixture of two PHBV copolyesters of different comonomer composition and sequence distribution was studied by 13C NMR based on dyad and triad analysis and multistage electrospray ionization mass spectrometry (ESI-MSn). Both techniques gave results that were in good agreement for all investigated samples. The effect of microstructure on PHBV thermal properties was investigated from the melting behavior of samples. A PHBV copolyester with randomly distributed hydroxyvalerate units (12.0 mol % HV) showed a single melting peak, whereas samples with nonrandom composition distribution showed multiple melting peaks in their thermograms. Such complex melting behavior suggested that the 12.9 and 27.1 mol % PHBV copolyesters were actually blends of several copolymers with widely different comonomer-unit composition.

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Year:  2006        PMID： 16827589     DOI： 10.1021/bm060201g

Source DB:  PubMed          Journal:  Biomacromolecules        ISSN： 1525-7797            Impact factor:   6.988


  9 in total

1.  Photoheterotrophic Assimilation of Valerate and Associated Polyhydroxyalkanoate Production by Rhodospirillum rubrum.

Authors:  Guillaume Bayon-Vicente; Sarah Zarbo; Adam Deutschbauer; Ruddy Wattiez; Baptiste Leroy
Journal:  Appl Environ Microbiol       Date:  2020-09-01       Impact factor: 4.792

2.  Synthesis of Diblock copolymer poly-3-hydroxybutyrate -block-poly-3-hydroxyhexanoate [PHB-b-PHHx] by a β-oxidation weakened Pseudomonas putida KT2442.

Authors:  Lakshmi Tripathi; Lin-Ping Wu; Jinchun Chen; Guo-Qiang Chen
Journal:  Microb Cell Fact       Date:  2012-04-05       Impact factor: 5.328

Review 3.  Polyester-based (bio)degradable polymers as environmentally friendly materials for sustainable development.

Authors:  Joanna Rydz; Wanda Sikorska; Mariya Kyulavska; Darinka Christova
Journal:  Int J Mol Sci       Date:  2014-12-29       Impact factor: 5.923

4.  Oxidized Polyethylene Wax as a Potential Carbon Source for PHA Production.

Authors:  Iza Radecka; Victor Irorere; Guozhan Jiang; David Hill; Craig Williams; Grazyna Adamus; Michal Kwiecień; Adam A Marek; Jan Zawadiak; Brian Johnston; Marek Kowalczuk
Journal:  Materials (Basel)       Date:  2016-05-13       Impact factor: 3.623

5.  The Molecular Level Characterization of Biodegradable Polymers Originated from Polyethylene Using Non-Oxygenated Polyethylene Wax as a Carbon Source for Polyhydroxyalkanoate Production.

Authors:  Brian Johnston; Guozhan Jiang; David Hill; Grazyna Adamus; Iwona Kwiecień; Magdalena Zięba; Wanda Sikorska; Matthew Green; Marek Kowalczuk; Iza Radecka
Journal:  Bioengineering (Basel)       Date:  2017-08-28

6.  Mass Spectrometry Reveals Molecular Structure of Polyhydroxyalkanoates Attained by Bioconversion of Oxidized Polypropylene Waste Fragments.

Authors:  Brian Johnston; Iza Radecka; Emo Chiellini; David Barsi; Vassilka Ivanova Ilieva; Wanda Sikorska; Marta Musioł; Magdalena Zięba; Paweł Chaber; Adam A Marek; Barbara Mendrek; Anabel Itohowo Ekere; Grazyna Adamus; Marek Kowalczuk
Journal:  Polymers (Basel)       Date:  2019-09-27       Impact factor: 4.329

Review 7.  From Anionic Ring-Opening Polymerization of β-Butyrolactone to Biodegradable Poly(hydroxyalkanoate)s: Our Contributions in This Field.

Authors:  Grażyna Adamus; Adrian Domiński; Marek Kowalczuk; Piotr Kurcok; Iza Radecka
Journal:  Polymers (Basel)       Date:  2021-12-13       Impact factor: 4.329

8.  Effect of 3-Hydroxyvalerate Content on Thermal, Mechanical, and Rheological Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Biopolymers Produced from Fermented Dairy Manure.

Authors:  Maryam Abbasi; Dikshya Pokhrel; Erik R Coats; Nicholas M Guho; Armando G McDonald
Journal:  Polymers (Basel)       Date:  2022-10-03       Impact factor: 4.967

9.  Improvement of the Polyhydroxyalkanoates Recovery from Mixed Microbial Cultures Using Sodium Hypochlorite Pre-Treatment Coupled with Solvent Extraction.

Authors:  Gabriela Montiel-Jarillo; Diego A Morales-Urrea; Edgardo M Contreras; Alex López-Córdoba; Edwin Yesid Gómez-Pachón; Julián Carrera; María Eugenia Suárez-Ojeda
Journal:  Polymers (Basel)       Date:  2022-09-21       Impact factor: 4.967
  9 in total

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