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Articles by Amira Sh. Soliman
Total Records ( 3 ) for Amira Sh. Soliman
  Abdelwahab M. Mahmoud and Amira Sh. Soliman
  Background: This study was done in the light of concept safety production of medicinal and aromatic plants. Materials and Methods: This study was conducted in open fields for two seasons continuously to compare the effects of organic fertilizer, soil amendments, a mixture of them and chemical NPK fertilizer (control) on growth parameters, floral characteristics and chemical constituents of Oenothera biennis L. (evening primrose) plants. Results: The outcome data pointed out that mixture of organic fertilizers (cattle manure and humic substances) and soil amendments (zeolite and magnetite) led to significant increment in morphological growth (plant height, number of branches, number of leaves, leaves area, leaves fresh weight and leaves dry weight), floral characteristics (number of flower, number of capsules, seed yield as well as health index) and chemical composition symbolized in plant pigments, total carbohydrates, net photosynthesis, stomatal conductance, water use efficiency, crude protein, total phenolics, N, P, K%, moreover indigenous hormones characterized in Indole Acetic Acid (IAA), gibberellic acid (GA3), cytokinins (CK) and abscisic acid (ABA), fixed oil content in seeds and oil yield per hectare in comparison with the recommended dose of chemical fertilizer NPK (control) under the same conditions. From an economic view, the feasibility study of experiment clearly indicated that mix of organic and natural fertilizers proven its value and potential to achieve maximum profitable returns. Conclusion: These results disclose that mixture organic and natural resources of fertilizers could reduce or replace the addition of chemical fertilizers, accordingly improve the quality and quantity of medicinal and aromatic plants, besides minimizing economic costs and pollution of the agricultural environment.
  Amira Sh. Soliman , M. Hassan , Faten Abou-Elella , A.H. Hanafy Ahmed and Souad A. El-Feky
  Objective: This study was carried out to investigate the effectiveness of foliar application of different sources of P on growth performance of Adansonia digitata in Egypt. Materials and Methods: Different sources of P [monoammonium phosphate (MAP), diammonium phosphate (DAP) or hydroxyapatite nanoparticles (nHA)] and unfertilized seedlings (control) were used as a foliar application to study growth parameters and chemical composition of Adansonia digitata grown in a sandy soil during two successive seasons (2014 and 2015). Results: Baobab plants sprayed with nHA showed a significant increase in plant growth characters (plant height, stem diameter, number of leaves per plant, leaf area, root length, total fresh and dry weights) when compared to control plants. Moreover, significant increase in total chlorophyll, carotenoids concentration, total carbohydrates percentage, vitamin C, macro-elements (N, P and K%), crude protein and total phenols content. The anticancer activity of Adansonia digitata leaves against Ehrlich Ascites Carcinoma Cells (EACC) and the antioxidant activity of leaves over control plants were recorded in the same treatment. Meanwhile, it had significant reducing power methods. Conclusion: It is recommended to spray with nHA for increasing plant growth, nutrition status, DPPH and anticancer activity besides, their safety for either environment or human health.
  Hanan G. Mohamed , Ahmed M. Gaafar and Amira Sh. Soliman
  The beneficial effect of many types of plant extract used as seasoning agents in foods have been claimed for centuries. The purpose of this study was conducted to investigate the antibacterial activity of essential oils from i.e., ginger, thyme, coriander, marjoram, mustard, chamomile, licorquorice and nigilla against some bacterial strains of food borne pathogen (Bacillus cereus, Staphylococcus aureus, Salmonella typhimurium and E. coli). Two different methods named the optical density assay and the well diffusion method were applied in the present study. The antibacterial effect of the essential oils coriander, thyme and ginger gave the highest antibacterial effect on all strains with inhibition percentages ranged from 90-99% and their inhibition zone ranged between 80-90 mm in diameters for both method used. While, marjoram, mustard and chamomile were moderate effect with inhibition percentages values ranged from 60-89% with inhibition zone between 50-70 mm. The lowest inhibitory effects were recorded for licorquorice and nigilla with inhibition percentages ranged from 33-65 and their inhibition zone of 8-45 mm. Bacillus cereus and Staphylococcus aureus were more resistant than Salmonella typhimurium and E. coli with all the examined essential oils. The results of this study revealed that these essential oils possesses some antibacterial properties as antibiotics, therefore, they can be used as a potential source of active ingredients for food preservatives.
 
 
 
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