Pig liver is rich in vitamin A, often eat pig liver, can gradually eliminate eye diseases. According to modern medical research, pig liver has a variety of anti-cancer substances, such as vitamin C, selenium, and so on. Moreover, the liver also has strong anti-cancer ability and anti fatigue special substances. The liver is not only the organ for storing nutrients, but also the detoxification organ. It constantly plays its detoxification role. After liver metabolism, the toxic substances and detoxification products can be excreted with bile secretion and excreted out of the body, Normal liver itself is non-toxic and can be safely eaten. So how to choose clean pig liver, do you know, what are the suitable people for pig liver?
How to choose pig liver
Pig liver can be divided into powder liver, face liver, hemp liver, stone liver, dead pig liver and irrigated pig liver. The first two are superior, the middle two are inferior, and the last two are inferior.
1. Powder liver, face liver: soft and tender, fingers a little hard, can be inserted into the incision, cooked delicious, tender. Difference, the former color such as chicken liver, the latter color ochre red.
2. Hemp liver: there is obvious white network on the reverse side. The cut part is not as soft as powder liver and face liver. It is tough and chewy after being cooked.
3. Stone liver: dark red in color, harder in quality than the above three. It's not easy to insert a little bit of finger force, so you need to chew more to get rotten.
4. Irrigated pig liver: the color is red and white. It is fuller than the non irrigated pig liver. The compressed part of the finger will sink and recover for a moment. There is water overflow at the incision. It is not good for health because it has bacteria without high temperature.
5. Dead pig liver: purplish red color, residual blood spilling after incision, a few with thick blisters. If it's not the whole, the seller will not have any trace after digging it out, but it will not taste delicious after cooking. It's hard to kill bacteria due to the short heating time of making soup and stir frying. It's harmful to health after eating.
Pig liver after a period of time do not eat will lose nutrition, how to do? Pig liver bought back after touching a layer of oil can keep fresh.
Points for attention in eating pig liver
Pig liver contains a variety of nutrients, it is rich in vitamin A and trace elements iron, zinc, copper, and fresh and delicious, but pig liver before eating to detoxify.
Pig liver is the largest detoxification organ of poison transfer station in pigs. All kinds of toxic metabolites and some toxic substances mixed in food, such as pesticides, will gather in the liver and be detoxified and excreted by it, or transported to the kidney after chemical processing, and excreted from the urine. The liver can also produce inflammation, even liver cancer. In addition, there may be liver parasites and other diseases.
If all kinds of toxic substances in the liver are not discharged completely, or the detoxification function is decreased, then the toxic substances will remain in the blood of the liver, which may induce cancer, leukemia and other diseases.
Since the toxic blood in the pig liver is scattered in tens of thousands of liver sinusoids, it is necessary to wash it under the tap water after buying the pig liver, and then soak it in the basin for 1-2 hours to eliminate the residual blood. Note that the water should be completely immersed in the liver. If the pig liver is cooked in a hurry, it can be cut into 4-6 pieces according to its size, put it in a basin and gently wash it, then put it into a basket and rinse it under tap water.
In addition, fried pork liver should not be tender, otherwise, it can not effectively detoxify, and can not kill bacteria, parasites eggs.
Suitable population for pig liver
1. It is suitable for people with weak Qi and blood, yellow complexion and iron deficiency anemia; it is suitable for people with blurred vision caused by insufficient liver blood, night blindness, xerophthalmia, keratomalacia after measles in children, internal and external panniculia and other eye diseases; it is suitable for cancer patients and after radiotherapy and chemotherapy; it is suitable for people with anemia, who often work in front of computer and love drinking.
2. People with hypertension, coronary heart disease, obesity and hyperlipidemia should not eat pig liver because of its high cholesterol content. Do not eat pig liver with discoloration or nodules.