Volume 15, Issue 77 (2018)                   FSCT 2018, 15(77): 38-31 | Back to browse issues page

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namadipour A, sadeghi mahoonak A. Antioxidant interactions in date palm and zizyphus extracts combination. FSCT 2018; 15 (77) :38-31
URL: http://fsct.modares.ac.ir/article-7-8029-en.html
Abstract:   (7355 Views)
The aim of the present study was to compare antioxidant properties of date palm and Zizyphus extracts in two concentrations (200 and 500ppm) more over investigation the possibility of synergism interaction between them. Date palm extract in all concentrations had a significant higher effect than Zizyphus in DPPH free radical scavenging assay, total antioxidant capacity and reducing power. Furthermore, zizyphus in all tests was weaker than BHT, but date palm in 500 ppm concentration had higher total antioxidant capacity and reducing power in comparison to BHT (100 ppm), and lower from BHT (200 ppm) in these assays. Among different combinations of these extracts, synergistic effect was found in two concentrations (200 and 500) in DPPH free radical scavenging assay(in concentration 200, Zizyphus80:date palm20, Zizyphus50:date palm50 and Zizyphus20:date palm80 and in concentration 500, Zizyphus40:date palm60 and Zizyphus20:date palm80) and also 200 ppm concentration in reducing power assay(Zizyphus40:date palm60 and Zizyphus20:date palm80). The result showed that date palm in high concentration (500 ppm) had similar capacity to low concentration (100 ppm) of BHT. Combination of date palm extract and low amount of zizyphus at high concentration (500 ppm) can compete with low concentration (100ppm) of BHT.
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Article Type: Original paper | Subject: Food quality control
Received: 2016/04/17 | Accepted: 2016/09/5 | Published: 2018/06/22

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