Literature DB >> 8476296

Biodegradability and mechanical properties of poly-(beta-hydroxybutyrate-co-beta-hydroxyvalerate)-starch blends.

B A Ramsay1, V Langlade, P J Carreau, J A Ramsay.   

Abstract

Wheat starch granules and poly-(beta-hydroxybutyrate-co-beta-hydroxyvalerate) [P(HB-co-HV), (19.1 mol% HV)] were blended at 160 degrees C. Increasing the starch content from 0 to 50% (wt/wt) decreased the tensile strength of P(HB-co-HV) from 18 MPa to 8 MPa and diminished flexibility as Young's modulus increased from 1,525 MPa to 2,498 MPa, but overall mechanical properties of the polymer remained in a useful range. A mixed microbial culture required more than 20 days to degrade 150-microns-thick samples of 100% P(HB-co-HV), whereas samples containing 50% (wt/wt) starch disappeared in fewer than 8 days. Starch granules degraded before P(HB-co-HV) did. Aerobic degradation proceeded more rapidly than anaerobic degradation.

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Year:  1993        PMID： 8476296      PMCID： PMC202268          DOI： 10.1128/aem.59.4.1242-1246.1993

Source DB:  PubMed          Journal:  Appl Environ Microbiol        ISSN： 0099-2240            Impact factor:   4.792


  5 in total

1.  [POLY-BETA-HYDROXYBUTYRIC ACID-SPLITTING BACTERIA AND AN EXOENZYME].

Authors:  A A CHOWDHURY
Journal:  Arch Mikrobiol       Date:  1963-12-10

2.  Continuous Production of Long-Side-Chain Poly-beta-Hydroxyalkanoates by Pseudomonas oleovorans.

Authors:  B A Ramsay; I Saracovan; J A Ramsay; R H Marchessault
Journal:  Appl Environ Microbiol       Date:  1991-03       Impact factor: 4.792

3.  Production of poly-(beta-hydroxybutyric-co-beta-hydroxyvaleric) acids.

Authors:  B A Ramsay; K Lomaliza; C Chavarie; B Dubé; P Bataille; J A Ramsay
Journal:  Appl Environ Microbiol       Date:  1990-07       Impact factor: 4.792

4.  Polymers for biodegradable medical devices. VI. Hydroxybutyrate-hydroxyvalerate copolymers: accelerated degradation of blends with polysaccharides.

Authors:  M Yasin; S J Holland; A M Jolly; B J Tighe
Journal:  Biomaterials       Date:  1989-08       Impact factor: 12.479

5.  Purification and properties of extracellular poly(3-hydroxybutyrate) depolymerases from Pseudomonas lemoignei.

Authors:  K Nakayama; T Saito; T Fukui; Y Shirakura; K Tomita
Journal:  Biochim Biophys Acta       Date:  1985-01-21
  5 in total
  5 in total

Review 1.  Biodegradable and compostable alternatives to conventional plastics.

Authors:  J H Song; R J Murphy; R Narayan; G B H Davies
Journal:  Philos Trans R Soc Lond B Biol Sci       Date:  2009-07-27       Impact factor: 6.237

Review 2.  Expanding Poly(lactic acid) (PLA) and Polyhydroxyalkanoates (PHAs) Applications: A Review on Modifications and Effects.

Authors:  Ahmed Z Naser; Ibrahim Deiab; Fantahun Defersha; Sheng Yang
Journal:  Polymers (Basel)       Date:  2021-12-06       Impact factor: 4.329

3.  Degradation of starch-poly(beta-hydroxybutyrate-co-beta-hydroxyvalerate) bioplastic in tropical coastal waters.

Authors:  S H Imam; S H Gordon; R L Shogren; T R Tosteson; N S Govind; R V Greene
Journal:  Appl Environ Microbiol       Date:  1999-02       Impact factor: 4.792

Review 4.  Biomaterial strategies for alleviation of myocardial infarction.

Authors:  Jayarama Reddy Venugopal; Molamma P Prabhakaran; Shayanti Mukherjee; Rajeswari Ravichandran; Kai Dan; Seeram Ramakrishna
Journal:  J R Soc Interface       Date:  2011-09-07       Impact factor: 4.118

Review 5.  Bioplastics for Food Packaging: Environmental Impact, Trends and Regulatory Aspects.

Authors:  Rui M S Cruz; Victoria Krauter; Simon Krauter; Sofia Agriopoulou; Ramona Weinrich; Carsten Herbes; Philip B V Scholten; Ilke Uysal-Unalan; Ece Sogut; Samir Kopacic; Johanna Lahti; Ramune Rutkaite; Theodoros Varzakas
Journal:  Foods       Date:  2022-10-05
  5 in total

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