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

Article Abstract:

Research was conducted to examine the degradation of starch-poly(beta-hydroxybutyrate-co-beta-hydroxyvalerate) (PHBV) bioplastic in tropical coastal waters. Experiments were conducted for one year at four stations in the coastal water southwest of Puerto Rico, wherein two stations were located in a mangrove stand while the other two were offshore. Results indicate that extended degradation lags would take place in open ocean water where microbes are sparse.

Plastics, Water pollution, Biodegradable plastics

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Influence of complex structure on the biodegradation of iron -citrate complexes

Article Abstract:

The biodegradation of tridentate iron-citrate complex in its bidentate form is discussed. The iron-citrate complexes were prepared under anaerobic conditions and were potentiometrically titrated and measured spectrophotometrically. High-pressure liquid chromatography monitored citrate degradation. Results indicate that the biodegrability of metal citrate complex are largely determined by their structural characteristics.

Analysis, Complex compounds, Coordination compounds

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