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.
What it is: Caviar, also known as black caviar, is a rare delicacy served either processed or fresh, and made of unfertilized sturgeon roe. Basically â fish eggs. How it tastes: Caviar has a salty, fishy taste that is also slightly reminiscent of salmon. Some people find the taste slightly gritty.