Carboxyl groups have an electronegative oxygen atom double bonded to a carbon atom. This carbon-oxygen bond is very polar and the fact that its a double bond increases the polarity of the bond.
PEA agar, also referred to as Phenylethyl Alcohol Agar is a medium  used by microbiologists to grow microorganisms. The ingredient that  supplies nitrogen is casein. Making the world better, one answer at a time.
While pea protein is not new â suppliers like Roquette and Manitoba-based pea ingredients specialist Nutri-Pea have been selling the ingredient for some years â the US market for pea protein isolate is relatively small, said Brent Lambert, VP-proteins & gums for Farbest Brands, âbut itâs ready to explodeâ .