Maotou, the flap stomach of the cow, also known as Baibao belly, commonly known as cow Baibao.
The cow is a ruminant, different from other livestock, the biggest feature is that there are four stomachs, respectively, rumen, reticulum (honeycomb stomach), flap stomach (hundred-leaf stomach, commonly known as the cow hundred-leaf) and wrinkled stomach. The first three stomachs do not have gastric glands and do not secrete gastric juices, collectively known as the antral stomach. The fourth stomach has gastric glands that secrete digestive juices and is similar to the stomachs of pigs and humans, so it is also called the true stomach.
The tripe is divided into two kinds, eat feed grown cattle hundred leaves yellow, eat food crops grown cattle hundred leaves black. The maw is not a plant, it is fresh beef lily leaves, the surface is black, white beef lily leaves are bleached, is frozen food.
Extended information:
Beef tripe, rich in protein and trace elements, is a regular guest on people's dinner tables, especially for women, because it has a good spleen and stomach and nourish the qi and blood effect, women often use it is very beneficial.
Buy tripe should pay attention to, especially white tripe is soaked in hydrogen peroxide, formaldehyde three or four days before becoming white. Some unscrupulous traders in the production of aquafaba products, first soaked with industrial caustic soda to increase the volume and weight, and then add formaldehyde, hydrogen peroxide in proportion to stabilize the volume. If the tripe is very white, more than its proper white color, and the volume is fat, you should avoid buying.
The tripe soaked with formaldehyde, will lose its original characteristics, hand pinch tripe is easy to crumble, quickly shriveled after heating, should be avoided.
Baidu Encyclopedia - tripe