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Articles by H.A. Amra
Total Records ( 2 ) for H.A. Amra
  A. Noah Badr , Fatma Nada , M.G. Shehata and H.A. Amra
  Background: Dill (Anethum graveolens) is considered as one of the medicinal herbal plants which were known from ancient Egyptian centaury. Dill had many benefits for healthcare and it could be used in some parts of the world as food additives. Gas chromatography of dill declared many major and minor components also phyto-constituents that may play an important role in the inhibition of toxigenic fungal growth and/or mycotoxin reductions. One of the major components that had importance was carvone also limonene and apiol otherwise terpenoids and tannins considered as minor ones. Materials and Methods: Effect of three types of dill (Anethum graveolens) products were studied to compare its ability to avoid fungal growth of six strains of toxigenic fungi, dill products were leaves and stems extract, roots extracts and seeds essential oil, meanwhile, the strains were Aspergillus flavus ITEM 8080, Aspergillus parasiticus ITEM 692, Aspergillus ochraceus ITEM 2456, Penicillum verrucosum ISPA 9618, Fusarium graminearum ISPA2020 and Aspergillus niger ITEM 2318. Results: Dills seeds essential oil appeared to be the most effective one could inhibit fungal growth of the toxigenic fungi at a concentration of 5 mg mL–1 of seeds essential oil the fungal growth of all toxigenic fungi under the study was avoided. Use of seeds essential oil as anti mycotoxigenic material against aflatoxin B1 and aflatoxin G1 was determined. Conclusion: By increasing the concentration of seeds essential oil in media, reduction effect increased either for aflatoxin B1 or for aflatoxin G1 toxins at a concentration of 5 mg mL–1 essential oil extract inhibition ratio reached 87.7% for aflatoxin B1 and for aflatoxin G1 it was 92.2% reducing of toxin.
  A. Noah Badr , Sh. M. Abdel-Fatah , Y.H. Abu Sree and H.A. Amra
  Background: Barley was planted in more than hundred countries worldwide in 2013. The world output in 1974 was around 148 million tons, ever after, there has been a trivial come down in the produced amount of barley worldwide. Mycotoxins are one of the most important groups of anti-nutritional substances found in feed. Materials and Methods: Thirty barley feeding samples and 12 of Human Consuming (HC) samples were collected from 6 regions, each region was represented by a withdrawal of five representative samples directly after harvesting from the major storage locations within governorates under study. Results: Total Fungal Count (TFC) ratios varied from 31-83% on 2014 to 54-92% on 2015 in feed sample. Aspergillus sp. was the dominant fungus in 2 years of study for feed and HC. In 2014, total aflatoxins ranged from 11.6-26.4 and 11.3-23.2 μg kg–1 for feed and HC samples, respectively. The AFB1 in feed samples was between 9.5-17.9 and 7.9-18.7 μg kg–1 on 2014 and 2015, respectively. For ochratoxin A, levels ranged from 0.17-0.55 and 0.3-2.1 μg kg–1 for feed samples on 2014 and 2015, respectively. Zearalenone maximum levels were 3.4 and 1.6 μg kg–1 for 2014 and 2015, respectively. Conclusion: Climate changes were a great factor that had impacts on mycotoxigenic fungal growth, fungal count, toxin type and its amount, that impact had reflected results appeared in food safety and food security.
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