Year : 2015 | Volume
: 10 | Issue : 2 | Page : 47--55
Improving the production of unsaturated fatty acid esters and flavonoids from date palm pollen and their effects as anti-breast-cancer and antiviral agents: An in-vitro study
Kadry Z Ghanem1, Manal M Ramadan2, Hassan Z Ghanem3, Mohamed Fadel4
1 Department of Food Science and Nutrition, National Research Centre, Giza, Egypt; Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Jizan University, KSA
2 Department of Chemistry of Flavour and Aroma, National Research Centre, Giza, Egypt
3 Department of Therapeutical Chemistry, National Research Centre, Giza, Egypt
4 Department of Microbial Chemistry, National Research Centre, Giza, Egypt
Pollens from different plants contain unsaturated fatty acid esters (USFAEs) and flavonoids that play a very important role as bioactive compounds. Therefore, the present study was designed to improve the production of volatile USFAEs and flavonoids from date palm pollen (DPP) in a culture of Trichoderma koningii and test its activities as an anti-breast-cancer and antiviral agent.
Materials and methods
The volatile esters of fermented and nonfermented date palm pollens (FDPPs) were identified using gas chromatographic-mass spectrometric (GC-MS) analysis. Antioxidant activities were determined using three different methods: the 2,2′-diphenyl-1-picrylhydrazyl (DPPH) assay, the ferric reducing antioxidant power assay, and the 2,2-azinobis(3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) assay. Polyphenols (phenolics and flavonoids) were also determined. Anti-breast-cancer and antiviral activities were determined using the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay.
GC-MS analysis showed an improvement in the level of USFAE in FDPP (47.99%) almost double that of the DPP results (24.11%) extract concentration. Flavonoids content of the FDPP extract (93.4 ± 6.3 mg/ml) was higher than that obtained by the DPP extract (45.4 ± 2.1 mg/ml), which was more than double the value. Antioxidant activity of the FDPP extract increased 3.16, 3.42, and 2.14 times that of the DPP extract as determined by the ABTS, ferric reducing antioxidant power (FRAP), and DPPH assays, respectively. The extract of FDPP showed strong anticancer activity against the MCF-7 cell line (IC 50 : 9.52 μg/ml) compared with the DPP extract (IC 50 : 96.22 μg/ml). Also, the FDPP extract had strong antiviral activity (CC 50 : 16.5 μg/ml) compared with DPP (CC 50 : 38.8 μg/ml). This is the first report in which the FDPP extract is used in biological studies as anti-breast-cancer and antiviral agents.
Fermentation of DPP by T. koningii improves many bioactive volatile USFAE and flavonoid contents; these have anti-breast-cancer and antiviral activity.
Manal M Ramadan
Department of Chemistry of Flavour and Aroma, National Research Centre, Dokki, 12622, Giza
|How to cite this article:|
Ghanem KZ, Ramadan MM, Ghanem HZ, Fadel M. Improving the production of unsaturated fatty acid esters and flavonoids from date palm pollen and their effects as anti-breast-cancer and antiviral agents: An in-vitro study.J Arab Soc Med Res 2015;10:47-55
|How to cite this URL:|
Ghanem KZ, Ramadan MM, Ghanem HZ, Fadel M. Improving the production of unsaturated fatty acid esters and flavonoids from date palm pollen and their effects as anti-breast-cancer and antiviral agents: An in-vitro study. J Arab Soc Med Res [serial online] 2015 [cited 2021 Oct 17 ];10:47-55
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