Lehrgebiet für Bioverfahrenstechnik (BioVT)

Dr.-Ing. Ahmed Zayed - Wissenschaftlicher Mitarbeiter

Fachbereich Maschinenbau und Verfahrenstechnik

Lehrgebiet Bioverfahrenstechnik
Gottlieb-Daimler Str.
Gebäude 49 , Raum 514
67663 Kaiserslautern

Kontakt

Tel.: +49 631 205-5578
Fax: +49 631 205-4312
E-Mail: zayed@mv.uni-kl.de

Ahmed Zayed

Zur Person

04/2019

Postdoc. in der Bio-VT der TUK und dem SFB926

12/2018Dozent an der Tanta University, college of Pharmacy, Ägypten.
06/2018

Promotion zum Dr.-Ing.
Thema: "Bioactive Compounds from Marine Sources"

04/2014 - 06/2018Wissenschaftlicher Mitarbeiter/Doktorand des Lehrgebiets Bioverfahrenstechnik
2012Masterstudium in Pharmakognosie und Naturprodukte (Masterabschluss 05/2012), Tanta Universität, Ägypten
Thema: Phytochemical and tissue culture studies of some gymnosperms growing in Egypt
2003Bachelorstudium in Pharmazeutischen Wissenschaften (Bachelorabschluss 05/2003), Tanta Universität, Ägypten
Jahrgang 1981


Forschungs- und Arbeitsschwerpunkte

  • Pflanzenzellkultur mit Braunalgen
  • Preparation of single cell cultures from Ocimum basilicum  callus‘‘

Publikationen

Journals
  • A. Zayed, T. Hahn, D. Finkelmeier, A. Burger-Kentischer, S. Rupp, R. Krämer, R. Ulber; “Phenomenological Investigation of the Cytotoxic Activity of Fucoidan Isolated from Fucus vesiculosus”, Process Biochem. 2019, (In Press), https://doi.org/10.1016/j.procbio.2019.03.026
  • A. Zayed, M. Kovacheva, K. Muffler, H.-W. Breiner, T. Stoeck, R. Ulber; “Induction and Genetic Identification of a Callus-Like Growth Developed in The Brown Alga Fucus vesiculosus”, Eng. Life Sci. 2019, (In Press) https://doi.org/10.1002/elsc.201800211
  • A. Zayed, R. Ulber, “Fucoidan Production: Approval Key Challenges and Opportunities”, Carbohydr. Polym. 2019, 211, 289–297. doi:10.1016/j.carbpol.2019.01.105
  • A. Zayed, C. Dienemann, C. Giese, R. Krämer, R. Ulber, “An immobilized perylene diimide derivative for fucoidan purification from a crude brown algae extract,” Process Biochem., 2018. 65, 233 – 238. DOI: 10.1016/j.procbio.2017.10.012
  • A. Zayed, R. Ulber, “Heterologous Expression of Heteropolysaccharides,” Chem. Ing. Tech. 2016. 88(9), 1399. DOI: 10.1002/cite.201650230
  • A. Zayed, R. Ulber, “Downstream Processing of Bioactive Heteropolysaccharides,” Chem. Ing. Tech. 2016, 88(9), 1398. DOI: 10.1002/cite.201650238
  • A. Zayed, K. Muffler, T. Hahn, S. Rupp, D. Finkelmeier, A. Burger-Kentischer, and R. Ulber, “Physicochemical and Biological Characterization of Fucoidan from Fucus vesiculosus Purified by Dye Affinity Chromatography,” Mar. Drugs 2016, 14(4), 79. DOI: 10.3390/md14040079.
  • T. Hahn, M. Schulz, R. Stadtmüller, A. Zayed, K. Muffler, S. Lang, and R. Ulber, “A Cationic Dye for the Specific Determination of Sulfated Polysaccharides”. Anal. Lett., 2016. 2719, 1948-1962. DOI: 10.1080/00032719.2015.1126839.
  • T. Hahn, A. Zayed, M. Kovacheva, R. Stadtmüller, S. Lang, K. Muffler, and R. Ulber, “Dye affinity chromatography for fast and simple purification of fucoidan from marine brown algae,” Eng. Life Sci., 2016. 16(1), 78–87. DOI: 10.1002/elsc.201500044.

 

Talk in Conferences
  • J. Stiefelmaier, A. Zayed, A. Mehring, C. ebel, R. Ulber; New possibilities for plant cell culture; Himmelfahrtstagung on Bioprocess Engineering 2021 - New Bioprocesses, New Products (2021), Digital
  • A.  Zayed, T. Hahn, S. Rupp, R. Krämer, R. Ulber, “Fucoidan as a Natural Anticoagulant, Antiviral and Anti-cancer Drug”, 3rd German Pharm-Tox Summit 2018 (26 February- 1 March 2018, Göttingen, Germany).
  • A. Zayed, R. Ulber. “Downstream processing of bioactive heteropolysaccharides”. ProcessNet-Jahrestagung und 32. DECHEMA-Jahrestagung der Biotechnologen 2016. (12.- 15. September 2016, Aachen, Germany).
  • A. Zayed, K. Muffler, R. Ulber. “Novel and rapid extraction and purification procedure for fucoidan from F. vesiculosus”. Jahrestreffen der Fachgruppe Phytoextrakte (23rd February 2015, Bonn, Germany).

 

Poster
  • A. Zayed, R. Ulber. “Development of a Filamentous-like Callus Growth from Brown Seaweeds”. Doktorandenseminar Verfahrenstechnik der TU Kaiserslautern (30-31 July 2018, Landau, Germany).
  • A. Zayed, C. Dienemann, C. Giese, R. Krämer, R. Ulber. “Fucoidan Purification: A Scale-Up Approach”. Himmelfahrtstagung 2018: Heterogeneities - A key for understanding and upscaling of bioprocesses in up- and downstream (7 – 9th May 2018 Herrenkrug Parkhotel, Magdeburg, Germany).
  • A. Zayed, C. Dienemann, R. Krämer, R. Ulber. ‘‘A Perylene Diimide Derivative for Sulphated Heteropolysaccharides Purification (e.g., Fucoidan from Crude Brown Algae Extract)’’. French Chemical and Process Engineering Society (SFGP), (July 11-13th 2017, Nancy, France - German-French day - July 12th​, 2017).
  • A. Zayed, C. Dienemann, R. Krämer, R. Ulber. ‘‘A simple and Time-saving Purification of Fucoidan from Crude Brown Algae Extracts. Himmelfahrtstagung 2017: Models for Developing and Optimising Biotech Production, (May 22. - 24. 2017, Neu-Ulm, Germany).
  • A. Zayed, B. Ledermann, N. Frankenberg-Dinkel, R. Ulber. ‘‘Evaluation of Heterologously Expressed Algal Fucosyltransferases and Sulfotransferases in E. coli’’. Himmelfahrtstagung 2017: Models for Developing and Optimising Biotech Production, (22. - 24. May 2017, Neu-Ulm, Germany).
  • A. Zayed, B. Ledermann, N. Frankenberg-Dinkel, R. Ulber. “Heterologous expression of heteropolysaccharides”. ProcessNet-Jahrestagung und 32. DECHEMA-Jahrestagung der Biotechnologen 2016, (12. - 15. September 2016, Aachen, Germany).
  • A. Zayed, K. Muffler, T. Hahn, R. Ulber. “Cultivation of macro algae in wave bag reactors for the production of sulfated heteropolysaccharides”. Himmelfahrtstagung 2016: New Frontiers for Biotech-Processes (2. - 4. May 2016, Koblenz, Germany).
  • A. Zayed, Abdel-Rahim S. Ibrahim, Eman S. Zalat. "Further phytochemical studies (constituents) and biological activities of Cupressus macrocarpa leaves growing in Egypt". 1st International Pharmaceutical Sciences Conference "Pharmacy Education and Community Expectation", (18.-19. November 2009, Tanta, Egypt)
  • Eman S. Zalat, A. Zayed, Abdel-Rahim S. Ibrahim. "Phytochemical study of volatile oil and pet. ether extract of Cupressus macrocarpa leaves growing in Egypt". Assuit University sixth International Pharmaceutical Sciences Conference, (12. -13. March, 2008, Assiut, Egypt
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