Showing 2 results for Jannat
Naficeh Sadeghi , Mohammad Reza Vafi , Behrooz Jannat , Masoomeh Behzad , Mohammad Reza Oveisi , Mannan Hajimahmoodi ,
Volume 14, Issue 2 (Mar-Apr 2020)
Abstract
Background: Tahini (sesame paste) is a kind of food obtained from sesame seeds. To our knowledge, this is the first study to measure total antioxidant activity and total phenolic compounds in tahini brands available in Iranian market.
Methods: In this study, 111 tahini samples were collected and purchased from the Iranian Market, including 37 commercial brands (three samples for per brand). The ferric reducing ability of plasma (FRAP) method was used to measure total antioxidant activity in each sample. Total phenol contents were measured by the Folin–Ciocalteau method in tahini brands.
Results: Current study showed Mino-dates brand (119.93 µmol/ml ±0.159), Trang-Chocolate brand (56.30 µmol/ml ±0.056), Barsam-coffee (45.13µmol/ml±0.094), and Chocolate-barsam brand (53.23 µmol/ml ±0.112), respectively, have more total antioxidant activity than other brands (p< 0.001). Moreover, Mino-dates brand (2057.33 µmol/ml ±0.094), barsam-coffee (805.51 µmol/ml ±0.041), Chocolate-barsam brand (807.42 µmol/ml ±0.095), and Trang-Chocolate brand (685.75 µmol/ml ±0.086), respectively, have more total phenolic compounds than other brands (p< 0.001).
Conclusion: According to the results of this study, Tahini brands with higher polyphenol contents antioxidant capacity also had higher antioxidant capacity. It can be concluded that Tahini in the Iranian market is one of the most valuable foods in terms of antioxidant activity and total phenolic contents.
Mojtaba Raeisi, Kamal Mirkarimi, Behrooz Jannat, Bahman Rahimi Esboei, Abdol Sattar Pagheh, Zahra Mehrbakhsh, Fatemeh Ghaffarifar, Oghlniaz Jorjani, Masoud Foroutan,
Volume 14, Issue 4 (Jul-Aug 2020)
Abstract
Background and objectives: Leishmaniasis is a tropical disease caused by protozoan parasites from the genus Leishmania. In this study, we aimed at investigating the in vitro anti-leishmanial effect of essential oils of Rosmarinus officinalis, Mentha pulegium, Foeniculum vulgare, Lippia citriodora and Pelargonium graveolens.
Methods: The essential oils were prepared from freshly dried and powdered plants with steam-distilled water. Iranian strain of Leishmania promastigotes was cultured in RPMI medium and the inhibitory effects of different concentrations (25, 32, 62.5, 125, 250, 500 and 1000 μg/ml) of the essential oils were investigated at 24, 48 and 72 hours. The number of live parasites before and after treatment with the essential oils was counted by trypan blue 10% staining and using neobar lam.
Results: The essential oils significantly decreased the number of promastigotes in a dose-dependent manner (P<0.05). However, the inhibitory effects of F. vulgare and R. officinalis essential oils were more profound compared to other essential oils. Moreover, concentrations of 500 and 1000 μg/ml of these two essential oils exerted equal and more anti-leishmanial potency compared to glucantime, the first-line drug used for treatment of leishmaniasis.
Conclusion: Based on the results, it is recommended to evaluate the in vivo anti-leishmanial effects of the tested essential oils, particularly F. vulgare and R. officinalis.
