ACTH is a segment of a much larger glycoprotein prohormone molecule called proopiomelanocortin (POMC). POMC is synthesized by the corticotrophs of the anterior pituitary, which constitute about 10 percent of the gland.
Caviar harvested from an older fish is the more rare, and more sought after, white caviar. The Beluga sturgeon are primarily found in the Caspian Sea, which is surrounded by Iran, Azerbaijan, Russia, Kazakhstan and Turkmenistan. The other primary source of Beluga sturgeon is the Black Sea near Russia and Romania.
The cost of a kilogram of these nuts exceeds 30$. 3. The most expensive caviar in the world is not the black one, but the almas caviar! The word âalmasâ is Iranian for diamond. Beluga caviar comes from a fish over 100 years old, that is virtually unchanged for 120 million years..