Effects of glucose and glycine on the biodegradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(PHB/V) and the proliferation of PHB/V-degrading microorganisms in soil suspension

The effects of glucose and glycine on the biodegradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB / V) in a soil suspension were studied. Relationship between the weight loss of PHB / V and the proliferation rates of the degrading bacteria was investigated. The weight loss after 1 week w...

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Published in:Soil science and plant nutrition (Tokyo) 2002-04, Vol.48 (2), p.159-164
Main Authors: Song, C. (Toyama Univ. (Japan). Faculty of Engineering), Wang, S, Ono, S, Zhang, B, Shimasaki, C, Inoue, M
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Applied sciences
BIODEGRADATION
Biodegradation of pollutants
Biological and medical sciences
Biological and physicochemical properties of pollutants. Interaction in the soil
BIOPOLYMERS
Biotechnology
Ecotoxicology, biological effects of pollution
Environment and pollution
Exact sciences and technology
film-MPN method
Fundamental and applied biological sciences. Psychology
GLUCOSE
glycine
GLYCINE (AMINO ACID)
Industrial applications and implications. Economical aspects
Pollution
poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
Soil and sediments pollution
SOIL MICROORGANISMS
Terrestrial environment, soil, air
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Summary:The effects of glucose and glycine on the biodegradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB / V) in a soil suspension were studied. Relationship between the weight loss of PHB / V and the proliferation rates of the degrading bacteria was investigated. The weight loss after 1 week was 2.60 +- 0.3% in the soil suspension supplemented with 20 mM of glucose (SSS-20G) and 4.76 +- 0.48% in that supplemented with 20 mM of glycine (SSS-20gly). These ratios were lower than that in the control soil suspension (CSS) (7.14 +- 0.93%). After 5 weeks, the weight loss had increased to 24.97 +- 2.25% in SSS-20G and 31.85 +- 2.55% in SSS-20gly but only to 18.26 +- 2.19% in CSS. Nutrients in PHB/V biodegradation play important roles in the inhibition and acceleration of different biodegrading phases and eventually accelerate the PHB / V biodegradation in the soil suspension.
ISSN:0038-0768
1747-0765
DOI:10.1080/00380768.2002.10409186