Comprehensive mineralogical and physicochemical characterization of recent sapropels from Romanian saline lakes for potential use in pelotherapy.

Autor:	Baricz A; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania. andreea.miclea@ubbcluj.ro., Levei EA; INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Str., 400293, Cluj-Napoca, Romania., Șenilă M; INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Str., 400293, Cluj-Napoca, Romania., Pînzaru SC; Faculty of Physics, Babeş-Bolyai University, 1 M. Kogalniceanu Str., 400084, Cluj-Napoca, Romania., Aluaş M; Faculty of Physics, Babeş-Bolyai University, 1 M. Kogalniceanu Str., 400084, Cluj-Napoca, Romania., Vulpoi A; Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babeş-Bolyai University, Cluj-Napoca, Romania., Filip C; National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath Str., 400293, Cluj-Napoca, Romania., Tripon C; National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath Str., 400293, Cluj-Napoca, Romania., Dădârlat D; National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath Str., 400293, Cluj-Napoca, Romania., Buda DM; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania.; Centre for Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 400006, Cluj-Napoca, Romania., Dulf FV; Department of Engineering and Environmental Protection, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372, Cluj-Napoca, Romania., Pintea A; Department of Chemistry and Biochemistry, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372, Cluj-Napoca, Romania., Cristea A; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania.; Centre for Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 400006, Cluj-Napoca, Romania., Muntean V; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania., Keresztes ZG; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania., Alexe M; Department of Physical and Technical Geography, Faculty of Geography, Babeș-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania., Banciu HL; Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 5-7 Clinicilor Str., 400006, Cluj-Napoca, Romania. horia.banciu@ubbcluj.ro.; Centre for Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 400006, Cluj-Napoca, Romania. horia.banciu@ubbcluj.ro.
Jazyk:	angličtina
Zdroj:	Scientific reports [Sci Rep] 2021 Sep 20; Vol. 11 (1), pp. 18633. Date of Electronic Publication: 2021 Sep 20.
DOI:	10.1038/s41598-021-97904-1
Abstrakt:	In this study we aimed to compare the mineralogical, thermal, physicochemical, and biological characteristics of recent organic carbon-rich sediments ('sapropels') from three geographically distant Romanian lakes (Tekirghiol and Amara, SE Romania, and Ursu, Central Romania) with distinct hydrogeochemical origins, presently used for pelotherapy. The investigated lakes were classified as inland brackish Na-Cl-sulfated type (Amara), coastal moderately saline and inland hypersaline Na-Cl types (Tekirghiol and Ursu, respectively). The settled organic matter is largely composed of photosynthetic pigments derived from autochthonous phytoplankton. Kerogen was identified in the sapropel of coastal Tekirghiol Lake suggesting its incipient maturation stage. The mineral composition was fairly similar in all sapropels and mainly consisted of quartz, calcite, and aragonite. Smectite, illite, mixed layer smectite/illite appeared as major clay components. Potentially toxic elements were found in low concentrations. The physical properties (i.e., specific heat, thermal conductivity and retentivity) and cation exchange capacity are comparable to other peloids used for therapy. This study is the first comprehensive multi-approached investigation of the geochemical nature of recent sapropels in Romanian saline lakes and thus contributes to expanding our knowledge on the origin and physicochemical qualities of organic matter-rich peloids with therapeutic uses. (© 2021. The Author(s).)
Databáze:	MEDLINE
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