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Eight treasures of the world
1, gelatin (fish maw)

Flower glue, or fish maw, is a dry product of all kinds of swim bladders, which is famous for its rich colloid, and its alias is flower glue. Glue, also known as fish maw, is made from fish maw, which is cut and dried. It is rich in protein, colloid, etc. It can nourish yin by dietotherapy, strengthen kidney and nourish essence, which can quickly eliminate fatigue and help to heal the wounds of surgical patients.

Flower glue is made by drying the swim bladder (the organ that controls the ups and downs of fish) of large fish. The ranking of top fish maw is the king of fish gum in turn: money sole fish gum (yellow-lipped fish), white gum (big white fish), sturgeon gum (sturgeon), yellow gum (African perch), sole gum (big flounder) and door eel gum (big door eel).

2, shark's fin

Shark wings are usually abbreviated as "shark's fin" among the people. As one of the traditional precious foods in China, it first appeared in Song Yao Hui, and it is one of the delicacies. Shark's fin is also called shark's fin, shark's fin, shark's fin, golden thread dish, etc. Specifically, it refers to the filamentary cartilage in shark's fin, which is made by drying shark's fin in the chest, abdomen and tail. According to the relevant regulations of China, dishes made by protected animals such as shark's fin are not allowed in official receptions.

3. Bird's Nest

Bird's Nest refers to the nest built by the saliva secreted by some Swifts of Swift Family of Swift Order and several Jin Siyan species of Swift genus, and then mixed with other substances. Bird's nest, also known as Swallow, Swallow Root and Swallow Vegetable, can be divided into "House Swallow" and "Cave Swallow" according to the nesting place. The color of Cave Swallow is different due to the influence of minerals, including Bai Yan, Yellow Swallow and Red Swallow, while House Swallow has only one color of ivory.

Bird's Nest is one of the traditional precious foods that have been eaten in China since the Ming Dynasty. The so-called "blood swallows" on the market are said to be made by artificially cultured house swallows through "bird droppings".

4. chinese forest frog

Chinese forest frog, whose scientific name is "Rana chensinensis", belongs to Amphibia, Anura, Ranidae and Rana. China is distributed in Heilongjiang, Jilin, Liaoning and Inner Mongolia (northeast). Foreign countries are located in Russia (Far East), Mongolia (East), North Korea and Japan (Tsushima Island).

This frog is a famous economic frog species in China. The nutrients in the oviduct of the female frog, namely Rana chensinensis oil, are valuable foods, supplements and medicines, and have the functions of "nourishing essence, nourishing yin and moistening lung, nourishing brain and improving intelligence". Because it can hibernate for up to five months in the cold winter, it is named "chinese forest frog".

5. Bear's paw

Bear's paw, also known as bear's web, is the sole of Xiong Ke animal black bear or brown bear. The dry bear's paw contains 43.96% fat, 55.23% coarse protein, 8.83% total nitrogen and 0.94% ash. It is what Asians call "health-preserving" ingredients.

6, Ming bone (shark or sturgeon brittle bone)

Ming bone, also known as fish brain and fish bone, is also a famous seafood. It is mainly made from the skull, jawbone, fin base bone and cartilage of the junction of spine of sharks, ploughshare rays and other fish. Except for the spine, the steel shark in the shark is all cartilage, the skull epidermis has a hard shell, the top wing bone epidermis has a little hard shell, and the bones of Hana shark are all cartilage without hard shell.

7. Deer tendon

Deer tendon is the tendon of limbs of Cervidae sika deer or red deer. Efficacy: tonify kidney yang and strengthen bones and muscles. Indications: It can be used for treating overwork, rheumatic joint pain, cold uterus, impotence and nocturnal emission. Identification: dried deer tendon, slender strip, golden or brownish yellow, shiny and transparent. It is about 45 ~ 65 cm long and about1.5 ~ 2 cm thick.

The upper end is fleshy, and the lower part has one semi-circular black hoof nail, and some have four small hoof bones; The toenails are slightly skinned and have short brown or light brown hair. Tough, slightly fishy. Generally, red deer tendon is better. Sika deer tendons are dry and thin, and are rarely used. Those who live by themselves, have luster, no mildew, rot and moth are qualified; It is better to be short and stout. It is better to be dry, long, thick, golden and shiny.

8. Sea cucumber

Sea cucumber belongs to invertebrates, echinoderms and Holothuria. There are more than 900 species in the world, and about 140 species in China. Among them, the Indian Ocean and the Western Pacific Ocean are the regions with the largest species and resources of sea cucumbers in the world. China's sea cucumbers are distributed in temperate zone and tropical zone. The temperate zone is mainly in Bo Huang sea area, and the main economic species is Stichopus japonicus, which is also the most famous sea cucumber species in China. The tropical zone is mainly in Guangdong, Guangxi and Hainan coastal areas, and the main economic species are Japanese ginseng.

Xisha Islands, Nansha Islands and Hainan Island are the main producing areas of tropical sea cucumbers in China. Sea cucumber is one of the "eight treasures" among all kinds of delicacies, and it also has a variety of nourishing and health-keeping functions specifically designated by Chinese medicine.

In the past half century, scholars at home and abroad have studied more than 40 kinds of chemical constituents of sea cucumber, which shows that sea cucumber is not only rich in more than 50 kinds of nutrients needed by human body, such as amino acids, vitamins and chemical elements, but also contains many bioactive substances, such as acidic mucopolysaccharides, saponins and collagen, and the pharmacological activities of sea cucumber active substances are very extensive.