Fernandes R.F., Alves G.A.S., Gonçalves R.V. & Temperini M.L.A.
(2021):
A methodology to identify the releasing of the amide‑containing β‑glucan from the Usnea lichen: A spectroscopic study,
Journal of Polymers and the Environment,
29: 3105–3115
Polymer fractions from a biological matrix have been well-characterized by vibrational spectroscopy, XPS, CP/MAS 13C
NMR, MALDI-TOF mass spectrometry, thermal analysis, and SEM, and all the results had corroborated for the chemical
extraction of β-glucan polymers grafted amino groups by peptide bonds (namely NH2-
β-glucan) as well as a cyclic oligosaccharide.
Our primary purpose was to explore the polysaccharide extraction parameters in the sample of Usnea lichen, mainly
in terms of extraction …
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