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Enzymatic and Non-enzymatic Degradation of Poly (3-Hydroxybutyrate-co-3-Hydroxyvalerate) Copolyesters Produced by Alcaligenes sp. MT-16 원문보기

The journal of microbiology, v.42 no.4, 2004년, pp.346 - 352  

Choi Gang Guk (Department of Microbiology, Chungnam National University) ,  Kim Hyung Woo (Institute of Biotechnology, Chungnam National University) ,  Rhee Young Ha (Department of Microbiology, Chungnam National University)

Abstract ▼ AI-Helper 아이콘AI-Helper

Poly(3-Hydroxybutyrate-co­3-Hydroxyvalerate), poly(3HB-co-3HV), copolyesters with a variety of 3HV contents (ranging from 17 to $60\;mol\%$) were produced by Alcaligenes sp. MT-16 grown on a medium containing glucose and levulinic acid in various ratios, and the effects of hydrophilicity ...

주제어

#Alcaligenes sp   #MT-16   #crystallinity   #degradability   #polyhydroxyalkanoate   #poly (3HB-co-3HV) copolyesters  

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제안 방법

  • 2003). Fourier-transform infra­ red spectroscopy in the attenuated total reflectance (FTIR- ATR) spectra was obtained using a Digilab FTS 80 (Bio­ Rad, USA) spectrophotometer equipped with a KRS 5 internal reflection element (incidence angle, 45°). Scan­ ning electron microscopic images were obtained with a Philips (Netherlands) scanning electron microscope model XL 30S, as described previously (Chung et al.
  • The molar fractions of 3HV in the copolyester increased drastically, up to 77 mol%, when the organism was cul­ tivated in a glucose medium supplemented with a cosub­ strate, such as levulinic acid. In this study, we prepared poly(3HB-ct;-3HV) copolyesters with a variety of 3HV contents, ranging from 17 to 60 mol%, by growing the organism in glucose medium supplemented with different concentrations of levulinic acid, and evaluated both the enzymatic and non-enzymatic degradation of solution­ cast films of these polyesters. Poly (3-hydroxybutyrate) (PHB) film was used as a control in the evaluation of the degradability of poly (3HB~co-3HV) copolyesters pre­ pared during this study.
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참고문헌 (29)

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    상세보기 crossref

  26. Steinbchel, A. and T. Lutke-Eversloh. 2003. Metabolic engineering and pathway construction for biotechnological production of relevant polyhydroxyalkanoates in microorganisms. Biochem. Eng. J. 16, 81-96 

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