The composition of total flavonoids from leaves of Ziziphus jujuba Mill. was qualitatively investigated and quantitatively determined. Rutin was found to be the dominant flavonoid from leaves of Z. jujuba. A method based on differential spectrophotometry was proposed for quantitative determination of total flavonoids from jujube leaves recalculated as rutin. Triple extraction of raw material by EtOH (40%) was found to be optimal for extracting the sum of flavonoids from jujube leaves. The total flavonoid contents in jujube leaves as determined by the proposed technique ranged from 1.07 ± 0.025% to 1.32 ± 0.03%.
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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 54, No. 8, pp. 13 – 17, August, 2020.
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Sampiev, A.M., Nikiforova, E.B. & Shevchenko, A.I. Flavonoids from Leaves of Ziziphus jujuba. Pharm Chem J 54, 800–803 (2020). https://doi.org/10.1007/s11094-020-02277-w
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DOI: https://doi.org/10.1007/s11094-020-02277-w