Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Poly-3-hydroxybutyric acid

The C4 aldol intermediate of the Weizmann process is also key in the aerobic fermentation of sugars to poly(3-hydroxybutyric acid) or PHB (-0[-CH(CH3)-CH2-COO - [70]. This natural and biodegradable polymer is produced inside microorganisms, e.g., Ralstonia eutropha. A complex processing is required to extract and purify the polymer granules from the microorganism. [Pg.43]

Figure 3 shows parts of the in vivo metabolic route towards PHAs. The biosynthesis of poly(3-hydroxybutyric acid) (P3HB) requires the condensation of two... [Pg.25]

Figure 1-3 A cell of a Spirillum negatively stained with phosphotungstic acid. Note the tufts of flagella at the ends, the rough appearance of the outer surface, the dark granules of poly-(3-hydroxybutyric acid and the light-colored granules of unknown nature. Courtesy of F. D. Williams, Gail E. VanderMolen, and C. F. Amstein. Figure 1-3 A cell of a Spirillum negatively stained with phosphotungstic acid. Note the tufts of flagella at the ends, the rough appearance of the outer surface, the dark granules of poly-(3-hydroxybutyric acid and the light-colored granules of unknown nature. Courtesy of F. D. Williams, Gail E. VanderMolen, and C. F. Amstein.
Hydroxy-propionic acid 1,3-Propanediol, acrylamide, acrylic acid, acrylonitrile, ethyl-3-hydroxypropionic acid, L-alanine, L-serine, malonic acid, propiolactone, poly(3-HP), poly(3-hydroxybutyric acid-co-3-hydroxypropionic acid) Polymers, fine chemicals Cao et al., 1999 Werpy and Petersen, 2004 Zhang etal., 2004 Patel etal., 2006... [Pg.82]

Cao, A., Arai, Y., Yoshie, N., Kasuya, K.I., Doi, Y. and Inoue, Y. 1999. Solid Structure and Biodegradation of the Compositionally Fractionated Poly(3-Hydroxybutyric Acid-Co-3-Hydroxypropionic Acid)s. Polymer, 40, 6821-6830. [Pg.94]

PHBH poly(3-hydroxybutyric acid-co-3-hydroxyhexanoic acid)... [Pg.156]

Name Poly-3-hydroxybutyric acid Sample preparation Potassium bromide dispersion 1.5 mg / 300 mg... [Pg.1635]

Biodegradable Polymers Properties, Possibilities, and Limits Considering the Synthesis, Processing, and Application of Poly(2-Hydroxypropionic Acid) and Poly(3-Hydroxybutyric Acid)... [Pg.193]

Keywords Biodegradable polymers, Poly(2-hydroxypropionic acid) (PLA), Poly (3-hydroxybutyric acid) (PHB), Processing, Structural characterization... [Pg.193]

This contribution places the emphasis on aliphatic polyesters and, as the main protagonists, on poly (2- and 3-hydroxyacids). Poly(2-hydroxypropionic acid) and poly(3-hydroxybutyric acid) which can be regarded as their prototypes, will be specially comparatively discussed concerning their chances and risks. Herein they will be called polylactic acid or PLA and PHB. [Pg.195]

Among a variety of bacterially synthesized poly(hydroxyalkanoic acid)s (PHAs), poly(3-hydroxybutyric acid), P(3HB),... [Pg.773]

Figure 10.1 Chemical structures of (a) poly(3-hydroxybutyric acid), (b) poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) and (c) poly(3-hydroxyoctanoic acid). Figure 10.1 Chemical structures of (a) poly(3-hydroxybutyric acid), (b) poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) and (c) poly(3-hydroxyoctanoic acid).
Figure 10.2 Reaction catalyzed by PHA synthase yielding poly(3-hydroxybutyric acid). Figure 10.2 Reaction catalyzed by PHA synthase yielding poly(3-hydroxybutyric acid).
Jossek, R., Reichelt, R., and Steinbiichel, A. (1998) In vitro biosynthesis of poly(3-hydroxybutyric acid) by using purified poly(hydroxyalkanoic acid) synthase of Chromatium vinosum. Appl. Microbiol. Biotechnol., 49, 258-266. [Pg.270]

Choi MH, Yoon SC, Lenz RW (1999) Production of poly(3-hydroxybutyric acid-co-4-hydroxybutyiic acid) and poly(4-hydroxybutyric acid) without subsequent degradation by Hydrogenophaga pseudoflava. Appl Environ Microbiol 65 1570-1577 Chowdhury AA (1963) Poly-/3-hydroxybuttersaure abbauende bakteiien und exo-enzyme. Arch Microbiol 47 167-200... [Pg.107]

Lee SY, Choi JI (1998) Effect of fermentation performance on the economics of poly(3-hydroxy-butyrate) production by Alcaligenes latus. Polym Degrad Stab 59 387-393 Lee SY, Choi J, Wong HH (1999) Recent advances in polyhydroxyalkanoate production by bacterial fermentation mini-review. Int J Biol Macromol 25 31-36 Lee SY, Lee KM, Chan HN, Steinbiichel A (1994) Comparison of recombinant Escherichia coli strains for synthesis and accumulation of poly(3-hydroxybutyric acid) and morphological changes. Biotechnol Bioeng 44 1337-1347... [Pg.116]

Shin M, Yoshimoto H, Vacanti JP (2004) In vivo bone tissue engineering using mesenchymal stem cells on a novel electrospun nanofibrous scaffold. Tissue Eng 10 33-41 Shinomiya M, Iwata T, Doi Y (1998) The adsorption of substrate-binding domain of PHB depolymerases to the surface of poly(3-hydroxybutyric acid). Int J Biol Macromol 22 129-135 Sim YC, Sudesh K (Unpublished). Annual report 2009 (2009) http //www.simedaiby.com/ downloads/pdfs/SDB/Annual Report/Sime Darby AR2009.pdf. Accessed online. Accessed Oct 1 2010... [Pg.124]

Tsuge T, Tanaka K, Shimoda M, Ishizaki A (1999) Optimization of -lactic acid feeding for the production of poly-3-hydroxybutyric acid by Alcaligenes eutrophus in fed-batch culture. 1 Biosci Bioeng 88 404-409... [Pg.126]

Poly (3-hydroxybutyric acid) P(3HB) Mw = 380,000 atactic PVA DP 2000 syndiotactic PVA DP 1690 isotactic PVA DP 7250 films cast from solutions of hexafluoroisopropyl alcohol FT-IR Suppression of P(3HB) crystallization is more with syn-PVA than with a-PVA. i-PVA has no influence. (80)... [Pg.902]

S.K. Hahn, Y.K. Chang, S.Y. Lee, Recovery and characterization of poly (3-hydroxybutyric acid) synthesized in Alcahgenes eutrophus and recombinant Escherichia coH, Appl. Environ. Microbiol. 61 (1) (1995) 34-39. [Pg.122]

Wong, S.,. Shanks, R., Hodzic, A. Properties of poly(3-hydroxybutyric acid) composites with flax fibres modified by plasticiser absorption. Maeromof. Mater. Eng. 287, 647-655 (2002)... [Pg.419]

Kose, G., Ber, S., Korkusuk, F., Hasirci, V. Poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) based tissue engineering matrices. J. Mater. Sci-Mater. M. 14, 121-126 (2003)... [Pg.419]

Kose, G., Korkusuz, F., Korkusuz, P., Hasirci, V. In vivo tissue engineering of bone using poly(3-hydroxybutyric acid-co-3- hydroxyvaleric acid) and collagen scaffolds. Tissue Eng. 10, 1234-1250 (2004)... [Pg.419]

Poly(vinyl alcohol) samples containing 12% of acetyl groups were either kindly supplied by Idroplast S.p.A. (Altopascio, Lucca-Italy) (PVA88M, Mw 34) or purchased firom Sigma (PVA88S, Mw 52). A sample of poly(vmyl acetate) (PVAc, Mw 310 kD) was purchased fix>m Aldrich. Bacterial poly(3-hydroxybutyric acid) (PHB, Mw 260 kD) was kindly supplied by Copersucar (Sao Paulo-Brazil). [Pg.331]

Ikqima, T., Yoshie, N., and Inoue, Y., 1996, Infrared analysis on blends of poly(3-hydroxybutyric acid) and stereoregular poly(vinyI alcohol) influence of tacticity of poly(vinyl alcohol) on crystallization of poly(3-hydroxybutyric acid). Macromol. Chem. Phys. 197 869-880. [Pg.339]

See other pages where Poly-3-hydroxybutyric acid is mentioned: [Pg.98]    [Pg.82]    [Pg.22]    [Pg.340]    [Pg.51]    [Pg.554]    [Pg.79]    [Pg.533]    [Pg.379]    [Pg.193]    [Pg.194]    [Pg.195]    [Pg.775]    [Pg.775]    [Pg.143]    [Pg.718]    [Pg.162]    [Pg.118]   
See also in sourсe #XX -- [ Pg.282 ]



SEARCH



3- Hydroxybutyric acid

3- Hydroxybutyric acid/3-Hydroxybutyrate

3-hydroxybutyrate

4- -4-hydroxybutyric

Poly acid

© 2024 chempedia.info