Guerrero C, Prieto A, Leal J A
Centro de Investigaciones Biológicas, C.S.I.C. Velázquez, Madrid, Spain.
Microbiologia. 1988 Feb;4(1):39-46.
Penicillium frequentans secreted an exopolysaccharide composed mainly of N-acetyl-galactosamine (48.4%) and galactose, mannose and glucose in the ratio 4:1:1, that were alpha - (1----4) and alpha - (1----3) linked predominantly. Greater polysaccharide production was achieved in old cultures grown statically with glucose as carbon source.