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8 results on '"Bedaiwy, Mohamed Y."'

3. Influence of nutrient supplementation and stress conditions on the biomass and lipid production of Microchloropsis salinafor biodiesel production

Author

El-Sheekh, Mostafa M., Mansour, Heba M., Bedaiwy, Mohamed Y., and El-shenody, Rania A.

Abstract

This work aimed to introduce a new technique for improving sustainable biodiesel from Microchloropsis salinaby examining the impact of various nitrogen sources, salt stress, and carbon enrichment, individually or in combination, to determine the best treatment conditions for biomass and lipid productivity as well as biodiesel quality. M. salinaeffectively utilizes nitrate (NaNO3and KNO3) and organic nitrogen (especially yeast extract and glycine) but not ammonium for growth. The highest biomass and lipid productivity were observed on yeast extract (0.11 g L−1day−1and 52.11 μgmL−1day−1, respectively). Lipid production enhanced by 80% under 300 mM of NaCl, while growth increased only by 30%. Acetate could not be used to cultivate the alga mixotrophically; only glucose and glycerol were effective. The ideal organic carbon supply values for glucose and glycerol were 3 g L−1and 2 g L−1, respectively. Nutrition by 2 g L−1glycerol promoted biomass and lipid productivities by 62% and 95%, respectively, while biomass productivity was reduced by 16% under combined and lipid productivity increased by 80%. All treatments significantly improved the biomass and biodiesel quality-related fatty acid profile.

Published
2024
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6. Isolation of Polyvinyl Alcohol Degrading Fungi and Improvement of Degradation Activity.

Author

Metwally, Metwally A., Bedaiwy, Mohamed Y., El-Sebaii, Noha A., and El-Badry, Anwer S. M.

Subjects
POLYVINYL alcohol, ASPERGILLUS niger, SODIUM nitrate, FUNGI, PENICILLIUM
Abstract

Copyright of Egyptian Journal of Microbiology is the property of Egyptian National Agricultural Library (ENAL) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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7. Bioaccumulation of several trace metal elements in fungi collected from Gharbia Governorate, Egypt

Author

Bedaiwy, Mohamed Y A and Mahmoud, Yehia A-G

Abstract

The determination of trace metal elements in fungi is important from an economic point of view, since fungi are used for human or animal consumption and/or as biofertilizers for plants. Furthermore, trace metal concentrations could be a good indicator for soil heath and contamination due to human interference. The present study determined the silver, cadmium, cobalt, chromium, nickel, lead, selenium, zinc and aluminium concentrations in the sporocarps of wild Ganoderma resinaceum, Bjerkandera adusta, Ganoderma applanatum, Inonotus radiatus and Abortiporus biennis collected from Gharbia Governorate, Egypt, during 2017-2018. The highest zinc concentrations, i.e., values of 39.10 and 42.35 mg kg-1, were recorded in fungi sporocarps gathered from the Zefta and Alsantah urban areas of Gharbia Governorate, respectively. Neither cadmium nor cobalt was observed in the sporocarps of the five species gathered during this investigation period. The aluminium contents of the five studied higher fungi species were higher than the other trace metals contents of these fungi, reaching 3058 mg kg-1 dry weight, which might indicate a high risk of contamination with aluminium metals within the air or soil of cities inside Gharbia Governorate, Egypt

Published
2019
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