Dongyeop X. Oh

Assistant Professor (Tenured), Associate Professor@UST/KRICT

Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus necator


Journal article


Giyoung Shin, DaeYong Jeong, Hyeri Kim, Seul-A. Park, Se-Mi Kim, J. Y. Lee, S. Hwang, Jeyoung Park, D. Oh
Polymers, 2021

Semantic Scholar DOI PubMedCentral PubMed
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APA   Click to copy
Shin, G., Jeong, D. Y., Kim, H., Park, S.-A., Kim, S.-M., Lee, J. Y., … Oh, D. (2021). Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus necator. Polymers.


Chicago/Turabian   Click to copy
Shin, Giyoung, DaeYong Jeong, Hyeri Kim, Seul-A. Park, Se-Mi Kim, J. Y. Lee, S. Hwang, Jeyoung Park, and D. Oh. “Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus Necator.” Polymers (2021).


MLA   Click to copy
Shin, Giyoung, et al. “Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus Necator.” Polymers, 2021.


BibTeX   Click to copy

@article{giyoung2021a,
  title = {Biosynthesis of Polyhydroxybutyrate with Cellulose Nanocrystals Using Cupriavidus necator},
  year = {2021},
  journal = {Polymers},
  author = {Shin, Giyoung and Jeong, DaeYong and Kim, Hyeri and Park, Seul-A. and Kim, Se-Mi and Lee, J. Y. and Hwang, S. and Park, Jeyoung and Oh, D.}
}

Abstract

Polyhydroxybutyrate (PHB) is a natural polyester synthesized by several microorganisms. Moreover, it has excellent biodegradability and is an eco-friendly material because it converts water and carbon dioxide as final decomposition products. However, the applications of PHB are limited because of its stiffness and brittleness. Because cellulose nanocrystals (CNCs) have excellent intrinsic mechanical properties such as high specific strength and modulus, they may compensate for the insufficient physical properties of PHB by producing their nanocomposites. In this study, natural polyesters were extracted from Cupriavidus necator fermentation with CNCs, which were well-dispersed in nitrogen-limited liquid culture media. Fourier-transform infrared spectroscopy results revealed that the additional O–H peak originating from cellulose at 3500–3200 cm−1 was observed for PHB along with the C=O and –COO bands at 1720 cm−1. This suggests that PHB–CNC nanocomposites could be readily obtained using C. necator fermented in well-dispersed CNC-supplemented culture media.


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