Total Antioxidant Status in Sapropel Extracts Layer by Layer

Aneka Kļaviņa (Coresponding Author), Agris Auce, Alise Silova, Ilona Pavlovska

Research output: Contribution to conferenceAbstractpeer-review


Found in lakes, freshwater sapropel is sediment with a unique structure containing more than 10 % of unevenly distributed organic matter as well as residues of microscopic aquatic organisms with a small content of inorganic components of biogenic origin and mixture of mineral ingredients. Organic, mineral and biological compounds determine its characteristics with the wide effects enhancing skin health. Sapropel extract is a mixture of chemical elements, hormones, various organic acids and vitamins and has potential in therapeutic applications. In this study the total antioxidant status (TAS) and fulvic acids in sapropel extract from different layers of sapropel sediments was determined. The total antioxidant status for each sapropel layer were calculated, there was no significant difference in TAS for different sapropel sediment layer, and so median concentration of TAS was calculated to show findings from each investigated lake. The total antioxidant status was from 1.25±0.23 to 0.34±0.15 mmol Trolex/L (M±SD), it was found that TAS is considerably higher in organic sapropel extracts (p<0.02). Currently, the reason for so drastic differences in TAS between different lakes is not fully understood. An antioxidant level in each lake does not correlate with the concentration levels of fulvic acids concertation on sapropel sample (1 g). Lake with the highest fulvic acid concentration 40.9±4.7 mg/g has the lowest level of antioxidant status 0.34±0.15 mmol trolex/L. Acknowledgements - This research was supported by „Analysis of characteristics of medical sapropel and its usage for medical purposes and elaboration of industrial extraction methods”, project No.
Original languageEnglish
Number of pages1
Publication statusPublished - 24 Feb 2020
EventSecond International Conference on PharmScience Research & Development - Los Angeles, United States
Duration: 24 Feb 202026 Feb 2020


ConferenceSecond International Conference on PharmScience Research & Development
Abbreviated titlePharma RD-2020
Country/TerritoryUnited States
CityLos Angeles

Field of Science*

  • 3.1 Basic medicine

Publication Type*

  • 3.4. Other publications in conference proceedings (including local)


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