Description
Polyglutamic acid (PGA) is a natural polymer polymerized linearly
from glutamic acid, a kind of amino acid.
It forms a smooth, elastic, self-moisturizing and soft film on the
skin, or a protective coating on prepared foods for extended shelf
life, improved texture, and other sensory qualities...
It is a polyelectrolyte for Na+ and Ca2+, in which each building
unit containing one negative charge, and showing specific affinity
for some biomaterials, such as Hydroxyapatite and cationic
lipids.
It is all natural, bio compatible, edible, and non-toxic to human,
biodegradable and friendly to environment.
It is a super hydrophilic humectant...
It has multi molecular conformations depending on the pH, binding
metal ions or other counter ions.
