Biodegradation testing: so many tests but very little new innovation

Biodegradation tests have been conducted for testing the degradation of environmental pollutants for at least half a century, but little innovations and new information have been made available from the more recent efforts. In this context, substrate, microorganisms, enrichment and degradation are discussed critically to summarize the essential approaches for biodegradation testing and also the new directions in this area of research. The information intends to pro-vide some essential assistance to individuals working on this topic in their research and applications.