ENVIRONMENTALLY BENIGN MITIGATION OF MICROBIOLOGICALLY INFLUENCED CORROSION (MIC). FIFTH QUARTER REPORT

The overall program objective is to develop and evaluate environmentally benign agents or products that are effective in the prevention, inhibition, and mitigation of microbially influenced corrosion (MIC) in the internal surfaces of metallic natural gas pipelines. The goal is to develop one or more environmentally benign products that can be applied to maintain the structure and dependability of the natural gas infrastructure. The techinal approach for this quarter includes the application of new methods of Capsicum extraction by soxhlet method and analysis of a new set of extracts by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC); isolation and cultivation of MIC-causing microorganisms from corroded pipeline samples; and evaluation of antimicrobial activities of the old set of pepper extracts in comparison with major components of known biocides and corrosion inhibitors.