Publication result detail

Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods

POSPÍŠILOVÁ, A.; MELČOVÁ, V.; FIGALLA, S.; MENČÍK, P.; PŘIKRYL, R.

Original Title

Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods

English Title

Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods

Type

WoS Article

Original Abstract

This work deals with the thermal stability of poly[(R)-3-hydroxybutyrate] (PHB) obtained by different isolation methods. PHB was recovered from bacteria by digestion with three different reagents (acid, base, surfactant) and by chloroform extraction as a reference. Thermal stability of the samples was investigated by differential scanning calorimetry, isothermal degradation with hot press, and gel permeation chromatography and was compared with the stability of commercially available PHB. PHBs recovered by digestion with alkaline reagents were found to be thermally unstable, compared to the extracted polymer and the commercially available one. Two different techniques for stabilization of PHB obtained by digestion methods were tested wash with acid solution or addition of carboxylic acid or anhydride before heating. Both methods proved to significantly increase the thermal stability. (C) 2021 Elsevier Ltd. All rights reserved.

English abstract

This work deals with the thermal stability of poly[(R)-3-hydroxybutyrate] (PHB) obtained by different isolation methods. PHB was recovered from bacteria by digestion with three different reagents (acid, base, surfactant) and by chloroform extraction as a reference. Thermal stability of the samples was investigated by differential scanning calorimetry, isothermal degradation with hot press, and gel permeation chromatography and was compared with the stability of commercially available PHB. PHBs recovered by digestion with alkaline reagents were found to be thermally unstable, compared to the extracted polymer and the commercially available one. Two different techniques for stabilization of PHB obtained by digestion methods were tested wash with acid solution or addition of carboxylic acid or anhydride before heating. Both methods proved to significantly increase the thermal stability. (C) 2021 Elsevier Ltd. All rights reserved.

Keywords

Polyhydroxyalkanoate; Polyhydroxybutyrate; Poly[(R)-3-hydroxybutyrate]; PHB; P3HB; Recovery; Isolation; Degradation; Stability

Key words in English

Polyhydroxyalkanoate; Polyhydroxybutyrate; Poly[(R)-3-hydroxybutyrate]; PHB; P3HB; Recovery; Isolation; Degradation; Stability

Authors

POSPÍŠILOVÁ, A.; MELČOVÁ, V.; FIGALLA, S.; MENČÍK, P.; PŘIKRYL, R.

RIV year

2022

Released

22.09.2021

Publisher

Elsevier

Location

OXFORD

ISBN

0141-3910

Periodical

POLYMER DEGRADATION AND STABILITY

Volume

193

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

7

Pages count

7

URL

Full text in the Digital Library

BibTex

@article{BUT174097,
  author="Aneta {Pospíšilová} and Veronika {Odehnalová} and Silvestr {Figalla} and Přemysl {Menčík} and Radek {Přikryl}",
  title="Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods",
  journal="POLYMER DEGRADATION AND STABILITY",
  year="2021",
  volume="193",
  number="1",
  pages="1--7",
  doi="10.1016/j.polymdegradstab.2021.109727",
  issn="0141-3910",
  url="https://doi.org/10.1016/j.polymdegradstab.2021.109727"
}

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