Isolation of Chitin-Containing Complexes from the Thallus of the Lichen Species Peltigera aphthosa

Author:
Brovko O., Ivakhnov A., Zhiltsov D. & Boitsova T.
Year:
2022
Journal:
Russian Journal of Physical Chemistry B
Pages:
16(8): 1332-1340
Url:
https://doi.org/10.1134/s1990793122080061
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Chitin-containing complexes were obtained from the thalli of the foliose lichen Peltigera aphthosa by supercritical fluid extraction (SCFE) and acid-base hydrolysis. In an active designed experiment, the optimal SCFE conditions were determined, which made it possible to obtain a complex with a yield of 96% and a sorption capacity for methylene blue of 125 mg/g. The polyampholytic nature of the resulting sorbent complexes is shown, and their morphology and chemical composition are characterized. The processing of lichen raw materials to produce chitin-containing complexes by SCFE is shown to be more efficient than acid-base hydrolysis. supercritical fluid extraction, carbon dioxide, acid-base hydrolysis, epigean lichen, Peltigera aphthosa, chitin-containing complex, supercritical-fluid extraction, glucan complexes, activated carbon, usnic acid, optimization, chitosan, sorption, Physics
Id:
35148
Submitter:
jph
Post_time:
Tuesday, 21 February 2023 10:56