Abstract
Plants growing in unfavorable environments, such as sea buckthorn, can have a high serotonin content. The potential of using different parts of sea buckthorn (Hippophae rhamnoides L.) as a natural source of serotonin was investigated. The feasibility of extracting serotonin hormone from the non-fruit parts of sea buckthorn is demonstrated. One- and two-year-old woody shoots were the best material for obtaining serotonin-containing raw product. Serotonin content in shoots of different sea buckthorn varieties growing in different regions and its dynamics during the vegetation period were determined by high-performance liquid chromatography. Serotonin is a water-soluble substance prone to microbial degradation, so proper preparation of raw materials plays a very important role in preserving serotonin in plant samples. A method for serotonin extraction using preliminary mechanochemical treatment is presented: it consists in pre-grinding, followed by mechanical treatment of raw materials with 5% adipic acid in a semi-industrial centrifugal mill. The highest degree of serotonin extraction was achieved when using air circulation at a drying temperature of 60–80 °C; serotonin concentration decreased when temperature was further increased. Serotonin content depended on the place and time of harvesting, the method used for drying the branches, and the characteristics of the plant variety. The minimum serotonin concentration (29 mg/g dry basis) was observed during summer; the maximum concentration was observed during winter; the annual changes in concentration can be as significant as 10-fold. The possibility of industrial cultivation and harvesting of different sea buckthorn varieties was also considered.
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Data Availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
Abbreviations
- AU :
-
Arbitrary units
- HLPC :
-
High-performance liquid chromatography
- UV :
-
Ultraviolet
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Funding
The collection of plant-based raw materials and sample preparation for analysis were supported by the budget project of the Siberian Research Institute of Plant Cultivation and Breeding, Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences (project No. FVNR 2022-0018). Mechanical treatment of the raw material and HPLC analysis of samples were funded within the state assignment to the Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences (project No. FWUS-2021-0005).
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Conceptualization: [George Galitsyn, Igor Lomovskiy]; Methodology: [George Galitsyn, Igor Lomovskiy]; Validation: [George Galitsyn, Igor Lomovskiy, Ekaterina Podgorbunskikh]; Formal analysis and investigation: [Igor Lomovskiy, Ekaterina Podgorbunskikh]; Resources: [George Galitsyn, Igor Lomovskiy]; Data curation: [George Galitsyn, Igor Lomovskiy]; Writing – original draft preparation: [George Galitsyn, Ekaterina Podgorbunskikh]; Writing – review and editing: [George Galitsyn, Igor Lomovskiy]; Visualization: [Igor Lomovskiy, Ekaterina Podgorbunskikh]; Supervision: [George Galitsyn, Igor Lomovskiy]; Project administration: [George Galitsyn, Igor Lomovskiy]; Funding acquisition: [George Galitsyn, Igor Lomovskiy]. All authors have read and agreed to the published version of the manuscript.
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Galitsyn, G., Lomovskiy, I. & Podgorbunskikh, E. Seasonal and Geographic Variation in Serotonin Content in Sea Buckthorn. Plant Foods Hum Nutr 78, 186–192 (2023). https://doi.org/10.1007/s11130-022-01038-2
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DOI: https://doi.org/10.1007/s11130-022-01038-2