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Research Article

LC-MS–MS and GC-MS analyses of biologically active extracts and fractions from Tunisian Juniperus phoenice leaves

, , , , , & show all
Pages 88-95 | Received 17 Jun 2015, Accepted 24 Aug 2016, Published online: 22 Sep 2016

Figures & data

Table 1. Chemical composition of hexane extract from Juniperus phoenicea leaves analyzed by GC-MS.

Figure 1. Chromatographic profiles at 330 nm of the fractions (Fr2, Fr3, and Fr4) of methanol extract. The numeration is that of .

Figure 1. Chromatographic profiles at 330 nm of the fractions (Fr2, Fr3, and Fr4) of methanol extract. The numeration is that of Table 2.

Table 2. Identification of the principal compounds in fractions Fr 1-3 by HPLC-MS-UV.

Figure 2. Nomenclature adopted for the retrocyclization fragments of biflavone (illustrated on amentoflavone).

Figure 2. Nomenclature adopted for the retrocyclization fragments of biflavone (illustrated on amentoflavone).

Table 3. Comparison of the 1H NMR spectroscopic data of compound 3 with those of amentoflavone and robustaflavone.

Figure 3. Chemical structures of the main identified compounds.

Figure 3. Chemical structures of the main identified compounds.

Table 4. DPPH-radical scavenging and α-amylase inhibition activities of hexane and methanolic extracts, fractions Fr1–3 and amentoflavone.