The classic Bogart flick is a near-perfect redition of Dashiell Hammett's tough-guy dialogue. Director John Huston cast the film so well, that it's impossible to imagine the characters any other way. And in all its twists and turns, the movie captures every nuance of Hammett's plot, and even adds to the mix.
Here's a hint: It's a preservative, and you can find it in (drum roll, please): potato chips, lard, butter, cereal, instant mashed potatoes, preserved meat, beer, baked goods, dry beverage and dessert mixes, chewing gum, and other foods.Oh, also: rubber, petroleum products, and, of course, wax food packaging.The molecule in question is butylated hydroxyanisole (BHA), and it appears in so many products because it's a potent antioxidant.ere's a hint: It's a preservative, and you can find it in (drum roll, please): potato chips, lard, butter, cereal, instant mashed potatoes, preserved meat, beer, baked goods, dry beverage and dessert mixes, chewing gum, and other foods.
Phenol Red Broth is a general-purpose differential test medium typically used to differentiate gram negative enteric bacteria. It contains peptone, phenol red (a pH indicator), a Durham tube, and one carbohydrate. We use three different kinds of phenol red broths. One contains glucose; one contains lactose, and the last contains sucrose. The objective of the exercise is to determine which organisms can utilize each sugar. Phenol red is a pH indicator which turns yellow below a pH of 6.8 and fuchsia above a pH of 7.4. If the organism is able to utilize the carbohydrate, an acid by-product is created, which turns the media yellow.