“…These bacteria also inhabit humanmade environments, such as potable water supplies, bathrooms, and washstands, where they sometimes produce pink ropy masses of growth. Because many Methylobacterium strains are resistant to chlorination and disinfection with ultraviolet beam (Furuhata et al, 1989(Furuhata et al, , 1993Hiraishi et al, 1995), they survive after sterilization and contaminate the food manufacturing environment. Furthermore, Methylobacterium strains are slow growers and can survive and replicate on poor carbon sources (Hiraishi et al, 1995).…”