Salmonella typhimurium is a pathogenic Gram-negative bacteria predominately found in the intestinal lumen. Its toxicity is due to an outer membrane consisting largely of lipopolysaccharides (LPS) which protect the bacteria from the environment.
Nightshade vegetables are plant foods that grow at night instead of during the day, such as potatoes and tomatoes. They offer the body a variety of vitamins and minerals but can also cause pain in certain individuals. These foods may also aggravate pre-existing conditions, such as osteoarthritis and fibromyalgia.
Members of the nightshade family produce several different toxins, called alkaloids, that are dangerous to humans, pets and livestock. In vegetables, the primary toxin is solanine, which is concentrated foliage and found in trace amounts in the fruit. High levels are also found in the green skins of sun-scalded potatoes.