Degradation of antibacterial 1-octylpyrrolidin-2-one by bacterial pairs isolated from river water and soil.

The study of bacterial degradation of 1-octylpyrrolidin-2-one (NOP) by river water and soil bacteria was the main aim of the research. Although the compound demonstrated bacteriostatic as well as bactericidal effects against Gram-positive and certain Gram-negative bacteria at concentrations ranging from 100 to 1000 mg L, its concentration of 100 mg L was successfully degraded by microbial communities of both river water and alluvial soil; removal efficiencies reached 87.2 and 88.

Photodegradation and Biodegradation of Poly(Lactic) Acid Containing Orotic Acid as a Nucleation Agent.

Orotic acid is a natural heterocyclic compound that acts as a nucleation agent in poly(lactic acid) (PLA). PLA materials with increasing orotic acid content were prepared and characterized. It was found that crystallinity of about 28% was reached with 0.