Improved Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Produced by Comamonas sp. EB172 Utilizing Volatile Fatty Acids by Regulating the Nitrogen Source
Joint Authors
Ariffin, Hidayah
Zakaria, Mohd Rafein
Shirai, Yoshihito
Abdul Aziz, Suraini
Hassan, Mohd Ali
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This study presents the effect of carbon to nitrogen ratio (C/N) (mol/mol) on the cell growth and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) accumulation by Comamonas sp.
EB172 in 2 L fermenters using volatile fatty acids (VFA) as the carbon source.
This VFA was supplemented with ammonium sulphate and yeast extract in the feeding solution to achieve C/N (mol/mol) 5, 15, 25, and 34.4, respectively.
By extrapolating the C/N and the source of nitrogen, the properties of the polymers can be regulated.
The number average molecular weight (Mn) of P(3HB-co-3HV) copolymer reached the highest at 838 × 103 Da with polydispersity index (PDI) value of 1.8, when the culture broth was supplemented with yeast extract (C/N 34.4).
Tensile strength and Young’s modulus of the copolymer containing 6–8 mol% 3HV were in the ranges of 13–14.4 MPa and 0.26–0.34 GPa, respectively, comparable to those of polyethylene (PE).
Thus, Comamonas sp.
EB172 has shown promising bacterial isolates producing polyhydroxyalkanoates from renewable carbon materials.
American Psychological Association (APA)
Zakaria, Mohd Rafein& Ariffin, Hidayah& Abdul Aziz, Suraini& Hassan, Mohd Ali& Shirai, Yoshihito. 2013. Improved Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Produced by Comamonas sp. EB172 Utilizing Volatile Fatty Acids by Regulating the Nitrogen Source. BioMed Research International،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1003760
Modern Language Association (MLA)
Zakaria, Mohd Rafein…[et al.]. Improved Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Produced by Comamonas sp. EB172 Utilizing Volatile Fatty Acids by Regulating the Nitrogen Source. BioMed Research International No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1003760
American Medical Association (AMA)
Zakaria, Mohd Rafein& Ariffin, Hidayah& Abdul Aziz, Suraini& Hassan, Mohd Ali& Shirai, Yoshihito. Improved Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Produced by Comamonas sp. EB172 Utilizing Volatile Fatty Acids by Regulating the Nitrogen Source. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1003760
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1003760