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The degradation of sheets of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (BIOPOL) by aerobic sewage sludge was analyzed. Degradation of the polymer was highly dependent on the pH of the culture medium and was maximal between pH 7 and pH 8.5. Below pH 6 and above pH 9 the degradation rate was very low. Agitation of the culture fluid had relatively little influence on the rates of degradation. 1.2 x 10(5) aerobic polymer-degrading bacteria per ml sewage sludge were identified by halo formation on solid poly(3-hydroxybutyrate) (PHB)-containing media. The number of PHB-degrading bacteria in other ecosystems amounted to 3.8 x 10(3) per ml sludge of a fresh-water lake, 9.2 x 10(5) per g garden-soil, 1.3 x 10(6) per g field-soil and 4.3 x 10(6) per g compost.
B H Briese, and
D Jendrossek, and
H G Schlegel
January 1997,
Biodegradation,
B H Briese, and
D Jendrossek, and
H G Schlegel
October 1993,
Applied and environmental microbiology,
B H Briese, and
D Jendrossek, and
H G Schlegel
January 1994,
Applied and environmental microbiology,
B H Briese, and
D Jendrossek, and
H G Schlegel
January 2001,
Microbiological research,
B H Briese, and
D Jendrossek, and
H G Schlegel
August 2016,
Applied microbiology and biotechnology,
B H Briese, and
D Jendrossek, and
H G Schlegel
November 2022,
Polymers,
B H Briese, and
D Jendrossek, and
H G Schlegel
February 2024,
Heliyon,
B H Briese, and
D Jendrossek, and
H G Schlegel
September 2015,
Applied microbiology and biotechnology,
B H Briese, and
D Jendrossek, and
H G Schlegel
April 1990,
International journal of biological macromolecules,
B H Briese, and
D Jendrossek, and
H G Schlegel
July 2023,
Polymers,
