The phrase "isolated form" means something that is separate or disconnected from others, existing on its own.
Sentences with «isolated form»
Since resistant starch hit the nutrition scene, recommendations to consume isolated forms of it like potato or tapioca starch have become very popular. (mommypotamus.com)
Pea protein in isolated form is usually valued as a complete protein, but amino acid efficiencies do occur in this particular protein source. (nupush.net)
Graphene, a newly isolated form of carbon, provides a rich lode of novel fundamental physics and practical applications (scientificamerican.com)