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.
Size: large grain. Royal Imperial Royal Imperial Caviar Our Royal Imperial Caviar comes from a cross breed of Huso Daricus and Acipenser Schrenckii. In the wild, both sturgeon species can only be found the Amur River. The species normally matures in the 7th-8th year, and can live up to 60 years and reach over 50kg.