Jupiterimages/Photos.com/Getty Images. Many consumers base their decision on which steak to purchase in the supermarket by its appearance, believing that a bright red color is a good indicator of its freshness. However, it is natural for a piece of raw steak to change from red to brown color. While it is natural for beef to lose its red color, color change can also be due to freezer burn and spoilage. Fresh cut beef is burgundy or purplish in color because it contains a lot of myoglobin, which is purplish-red in color. The red color of raw meat is mostly the result of oxygen exposure. When the myoglobin is exposed to oxygen, it becomes oxymyoglobin, which turns the steak into a bright red color. To maintain the bright red color consumers prefer, supermarkets use a plastic wrap that oxygen can pass through to package the beef.
Women's Professional Motocross. Motocross is an off road racing sport that is raced on a dirt bike around a track, there are multiple riders going around at a time and the first person to complete the required number of laps in the shortest period of time wins. The women's motocross league is separate from men's motocross because of the different rules, and also the different bike sizes. Women generally race bikes that are 125cc or 250cc because they are not big enough to ride a 450cc. These differences make it hard for men an
She is a playable character in the Sonic and the Secret Rings multiplayer mode, a playable fighter within Sonic Battle, a secret unlockable party member in Sonic Chronicles: The Dark Brotherhood and a playable racer in Sonic Riders, Sonic Riders: Zero Gravity, and Sonic Free Riders.