title: Expanding the use of streamlined DNA extraction techniques to novel environmental microbiology samples
design: Samples were scraped from the inner surface of oil field pipelines. Two samples, designated "A" and "B", originated from water reinjection lines. They contained substantial quantities of crude oil, corrosion products such as iron sulfides, and extrapolymeric substances (EPS) from "biofilm."   As for the second experiment samples were scraped from the inner surface of seawater injection line. The sample designated "C".  It did not contain crude oil but did contain lesser quantities of corrosion products and EPS.