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    Article

    Investigation of the flavonoidal constituents and insecticidal activity of Teucrium zanonii

    A. Abdelshafeek Khaled1,2★, Abdelrahem Fahem2, A. Elwahsh Mohemmed1, A. Abdelkhalek Ismail2★ Corresponding author

    1. 1Altahadi University, Faculty of Science, Chemistry Department, Sirt, Libya, P.O. 674.
    2. 2National Research Center, phytochemistry Department, Dokki, Cairo, Egypt.3
    3. 3National Research Center, pests and plant protection Department, Dokki, Cairo, Egypt.3

    CORRESPONDENCE

    A. Abdelshafeek Khaled

    Akkiraju SudheerDepartment of Pharmacology, Raghavendra Institute of Pharmaceutical Education and Research (RIPER)-Autonomous, Chiyyedu, Anantapuram, Andhra Pradesh, INDIA.

    sudheerlegend@gmail.com

    Received: 29-09-2009; Revised: 12-10-2009; Accepted: 12-00-2009.

    Volume 1, Issue 6 · pp. 410–416 · PUBLISHED Nov-Dec 2009 · DOI:

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    Teucrium zanonii (Family labiateae) is an endemic Libyan plant growing in many regions around Benghazy city. Investigation of the flavonoidal constituents of plant led to isolation of Cirsiliol, Luteolin, Chrysoeriol and Xanthomicrol from ethyl acetate fraction while Apigenin 6,8-di-O-glucoside and Luteolin-7-O-rutinoside were isolated from the butanol fraction. All compounds were identified by chromatographic and spectroscopic methods (UV, MS, 1H and 13C NMR spectroscopy). The study of insecticidal activity of different extracts of the plant against the adult of Phloeotribus oleae showed the highest effect (86.67% mortality) was observed with the aqueous extract, while the unsaponifiable fraction was the least in this concern which give only 43.33% mortality,. Also, mortalities of 83.33%, 80.00%, 70.00% and 66.67% were obtained by using of alcoholic, butanol, ethyl acetate and chloroform extracts, respectively. Also the filed experiments proved that aqueous, alcoholic and butanol extracts significantly lowered the percentage of infestation to 70.82%, 65.86% and 66.56%, respectively after one week.

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      Khaled, A. A., Fahem, A., Mohemmed, A. E., & Ismail, A. A. (2009). Investigation of the flavonoidal constituents and insecticidal activity of Teucrium zanonii. Pharmacognosy Research, 1(6), 410–416.