Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus

H. Chua; P. H.F. Yu; Wai Hung Lo

doi:10.1007/BF02920203

Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus

H. Chua, P. H.F. Yu, Wai Hung Lo

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

Biodegradable copolyesters of 3-hydroxybutyrate-co-3-hydroxyvalerate (3HB-3HV) were produced by Alcaligenes eutrophus in a two-staged process, namely growth stage and nitrogen-deficient polyester-accumulation stage. When C5was used as the sole carbon source, the copolyester contained 43 mol % of 3HV. A range of copolyesters with 0-43 mol % of 3HV could be produced by using a medium containing different concentration ratios of butyric acid C4and C5. T(m) of PHB homopolymer was 177.6°C and that of copolyester with highest 3HV mol fraction of 43% was 99.0°C. C5concentration in the medium could be an effective means to control the polymeric composition and mechanical properties of the copolyesters accumulated in A. eutrophus.

Original language	English
Pages (from-to)	929-935
Number of pages	7
Journal	Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
Volume	70-72
DOIs	https://doi.org/10.1007/BF02920203
Publication status	Published - 1 Jan 1998

Keywords

Alcaligenes eutrophus H16
Biodegradable plastics
Physical properties
Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

ASJC Scopus subject areas

Biotechnology
Bioengineering
Biochemistry
Applied Microbiology and Biotechnology
Molecular Biology

More information

10.1007/BF02920203

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title = "Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus",

abstract = "Biodegradable copolyesters of 3-hydroxybutyrate-co-3-hydroxyvalerate (3HB-3HV) were produced by Alcaligenes eutrophus in a two-staged process, namely growth stage and nitrogen-deficient polyester-accumulation stage. When C5was used as the sole carbon source, the copolyester contained 43 mol % of 3HV. A range of copolyesters with 0-43 mol % of 3HV could be produced by using a medium containing different concentration ratios of butyric acid C4and C5. T(m) of PHB homopolymer was 177.6°C and that of copolyester with highest 3HV mol fraction of 43% was 99.0°C. C5concentration in the medium could be an effective means to control the polymeric composition and mechanical properties of the copolyesters accumulated in A. eutrophus.",

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author = "H. Chua and Yu, {P. H.F.} and Lo, {Wai Hung}",

year = "1998",

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language = "English",

volume = "70-72",

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Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus. / Chua, H.; Yu, P. H.F.; Lo, Wai Hung.
In: Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology, Vol. 70-72, 01.01.1998, p. 929-935.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus

AU - Chua, H.

AU - Yu, P. H.F.

AU - Lo, Wai Hung

PY - 1998/1/1

Y1 - 1998/1/1

N2 - Biodegradable copolyesters of 3-hydroxybutyrate-co-3-hydroxyvalerate (3HB-3HV) were produced by Alcaligenes eutrophus in a two-staged process, namely growth stage and nitrogen-deficient polyester-accumulation stage. When C5was used as the sole carbon source, the copolyester contained 43 mol % of 3HV. A range of copolyesters with 0-43 mol % of 3HV could be produced by using a medium containing different concentration ratios of butyric acid C4and C5. T(m) of PHB homopolymer was 177.6°C and that of copolyester with highest 3HV mol fraction of 43% was 99.0°C. C5concentration in the medium could be an effective means to control the polymeric composition and mechanical properties of the copolyesters accumulated in A. eutrophus.

AB - Biodegradable copolyesters of 3-hydroxybutyrate-co-3-hydroxyvalerate (3HB-3HV) were produced by Alcaligenes eutrophus in a two-staged process, namely growth stage and nitrogen-deficient polyester-accumulation stage. When C5was used as the sole carbon source, the copolyester contained 43 mol % of 3HV. A range of copolyesters with 0-43 mol % of 3HV could be produced by using a medium containing different concentration ratios of butyric acid C4and C5. T(m) of PHB homopolymer was 177.6°C and that of copolyester with highest 3HV mol fraction of 43% was 99.0°C. C5concentration in the medium could be an effective means to control the polymeric composition and mechanical properties of the copolyesters accumulated in A. eutrophus.

KW - Alcaligenes eutrophus H16

KW - Biodegradable plastics

KW - Physical properties

KW - Poly (3-hydroxybutyrate-co-3-hydroxyvalerate)

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U2 - 10.1007/BF02920203

DO - 10.1007/BF02920203

M3 - Journal article

C2 - 9627404

SN - 0273-2289

VL - 70-72

SP - 929

EP - 935

JO - Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology

JF - Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology

ER -

Accumulation of biodegradable copolyesters of 3-hydroxy-butyrate and 3- hydroxyvalerate in Alcaligenes eutrophus

Abstract

Keywords

ASJC Scopus subject areas

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