Production and characterization of biodegradable terpolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate-co-4-hydroxybutyrate) by Alcaligenes sp. A-04

Journal of Bioscience and Bioengineering
Suchada Chanprateep, Songsri Kulpreecha

Abstract

The production of the terpolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate-co-4-hydroxybutyrate), P(3HB-co-3HV-co-4HB), by Alcaligenes sp. A-04 was investigated to determine the superior biodegradable polymer properties over those of poly(3-hydroxybutyrate), P(3HB), and its copolymers. The highest terpolymer content of 68% (w/w) was produced by Alcaligenes sp. A-04 at 60 h by shake-flask cultivation. The terpolymer with 93 mol% 4HB mole fraction units was produced when the cultivation time was extended to 96 h. Moreover, it was found that Alcaligenes sp. A-04 could utilize 1,4-butanediol for the synthesis of 3HB and 4HB monomers as well as the sodium salt of 4-hydroxybutyrate. The terpolymer content was 30% (w/w) and the composition was P(33%3HB-co-16%3HV-co-51%4HB). Next, terpolymers with 4HB mole fraction units ranging from 50 to 90 mol% were produced by varying the medium composition and cultivation time. The thermal and mechanical properties of the resulting terpolymers were different from those of the copolymers with a similar mole fraction of monomer units. The terpolymer P(4%3HB-co-3%3HV-co-93%4HB) showed an elongation of 430%, a toughness of 33 MPa, and Young's modulus of 127 MPa similar to those of low-density polyet...Continue Reading

References

Apr 1, 1994·International Journal of Biological Macromolecules·Y Saito, Y Doi

❮ Previous
Next ❯

Citations

Aug 20, 2010·Journal of Bioscience and Bioengineering·Suchada Chanprateep
Jun 13, 2015·Indian Journal of Microbiology·Mamtesh SinghVipin C Kalia
Sep 7, 2013·Bioresource Technology·João M B T CavalheiroM M R da Fonseca
Apr 30, 2016·International Journal of Biological Macromolecules·Anbreen AnjumShazia Tabasum
Aug 14, 2019·Polymers·Justyna Możejko-CiesielskaKarolina Szacherska
Aug 1, 2018·Biotechnology for Biofuels·Vibhavee Sukruansuwan, Suchada Chanprateep Napathorn
Dec 13, 2019·Science Progress·Ntsako Portia ChaukeDiakanua Bavon Nkazi
Apr 10, 2021·International Journal of Biological Macromolecules·T VolovaE Shishatskaya
Jun 22, 2021·Frontiers in Bioengineering and Biotechnology·Thanawat BoontipSuchada Chanprateep Napathorn
Nov 8, 2019·Journal of Chemical Information and Modeling·Ghanshyam PilaniaBabetta L Marrone

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.