Phytochemical study of leaves of the genus Syringa L. species

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Abstract

The work is devoted to the phytochemical study of the leaves of various species of the genus Syringa. They are promising sources of raw material containing flavonoids. The leaves of S. vulgaris, S. josikaea, S. amurensis, S. microphylla, S. villosa and S. sweginzovii were selected for the experiment. Rutin was found in the studied extracts of lilac leaves. The bathochromic shift of the long-wave band in the UV spectra of the solutions of the studied extracts indicates the presence of flavonoids. Under the conditions of differential spectrophotometry, the maximal absorption was detected at the range of 406-412 nm of plant raw material. The total flavonoids at the wavelength of 412 nm calculated on rutin in all the studied samples varies from 1.43% to 2.92%.

About the authors

Anastasiya D. Serebryakova

Samara State Medical University

Author for correspondence.
Email: lazymoon93@mail.ru

Postgraduate student, Department of Pharmacognosy with Botany and the Bases of Phytotherapy

Russian Federation, Samara

Vladimir A. Kurkin

Samara State Medical University

Email: v.a.kurkin@samsmu.ru

Doctor of Pharmaceutical Sciences, Professor, Head of the Department of Pharmacognosy with Botany and Bases of Phytotherapy

Russian Federation, Samara

Albert I. Agapov

Samara State Medical University

Email: a.i.agapov@samsmu.ru

Doctor of Biological Sciences, Professor, Professor of the Chair of Medical Chemistry

Russian Federation, Samara

References

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Supplementary files

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2. Fig. 1. Electronic spectra of the solutions of the water-alcohol extraction from Syringa vulgaris leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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3. Fig. 2. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa vulgaris (differential version)

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4. Fig. 3. Electronic spectra of the solutions of the water-alcohol extraction from Syringa josikaea leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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5. Fig. 4. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa josikaea (differential version)

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6. Fig. 5. Electronic spectra of the solutions of the water-alcohol extraction from Syringa amurensis leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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7. Fig. 6. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa amurensis (differential version)

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8. Fig. 7. Electronic spectra of the solutions of the water-alcohol extraction from Syringa microphylla leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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9. Fig. 8. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa microphylla (differential version)

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10. Fig. 9. Electronic spectra of the solutions of the water-alcohol extraction from Syringa villosa leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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11. Fig. 10. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa villosa (differential version)

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12. Fig. 11. Electronic spectra of the solutions of the water-alcohol extraction from Syringa sweginzowii leaves: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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13. Fig. 12. The electronic spectrum of the solution of the water-alcohol extraction from the leaves of Syringa sweginzowii (differential version)

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14. Fig. 13. Electronic spectra of the alcohol solutions of rutin: 1 — extraction solution; 2 — extraction solution with the addition of aluminum chloride

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15. Fig. 14. Electronic spectrum of the alcohol solution of rutin (differential version)

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Copyright (c) 2021 Serebryakova A.D., Kurkin V.A., Agapov A.I.

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