Download and print the picnic table and benches cut list. Picnic Table Cut List. 5/4x4 cedar for the legs: four @ 27 inches. 5/4x6 cedar for the stiles: two @ 80 inches. 5/4x6 cedar for the rails: three @ 24 inches. 5/4x6 cedar for the tabletop slats: eight @ 33Â¼ inches.
Non-Lactose fermenting bacteria such as Salmonella, Proteus species, Yersinia, Pseudomonas aeruginosa and Shigella cannot utilize lactose, and will use peptone instead. This forms ammonia, which raises the pH of the agar, and leads to the formation of white/colorless colonies on the petri plate.t contains bile salts (to inhibit most Gram-positive bacteria), crystal violet dye (which also inhibits certain Gram-positive bacteria), neutral red dye (which turns pink if the microbes are fermenting lactose). Composition: 1  Peptone - 17 g. 2  Proteose peptone - 3 g.
Fermentation of this sugar results in an acidic pH and causes the pH indicator, neutral red, to turn a bright pinky-red color. Thus organisms capable of lactose fermentation such as Escherichia coli, form bright pinky-red colonies (plate pictured on the left here).