Biotechnology for Processing Natural Resources Employing Microbial-Catalysts and Fermentation Systems

  • Poonam Singh Nee Nigam

Student thesis: Doctoral Thesis


Research presented in this thesis has revealed exciting possibilities in the subject of Microbial technology. The work completed in several funded projects was aimed and focussed on the selection and modification of microorganisms as biocatalysts, and their application in the processes of interest. Therefore, the title of thesis reflects the work incorporated in, as “Biotechnology for processing natural resources employing microbialcatalysts and fermentation systems” The research work submitted in this thesis has been conducted and published after the award of my PhD degree in 1985, and includes some of my postdoctoral work 1986-1989 in Germany, but mostly the research work completed during my full-time employment as a research-active academic member of staff at Ulster University since Jan 1990-present in UK. The contribution of my research and published work, in public domain, has been to advance the study of subject, in the area of applied Microbial-Biotechnology; on aspects of Fermentation-technology using cultivation of microorganisms in submerged and solidstate/substrate systems; Microbial processes for Bioremediation; Bioconversion of renewable bioresources, industrial residues and by-products from food and drink industries; Biotreatment & Biodegradation of agricultural wastes and residues for their reuse as added-value products etc. The work published has been presented in six separate sections, and full copy of some publications have been attached. The whole journey of this research work has produced several doctoral and postdoctoral researchers, who are taking this advancement of science further in their jobs responsibilities as researcher/supervisor/examiner in several countries. The main exciting possibility as an outcome of work in this thesis for new researchers is – “The microorganisms, as powerful biocatalysts, can be purposely modified for their economical and practical exploitation to perform a range of bioprocesses. The systems can be optimised and scaled for their application in several industries, such as food, biofuel, pharmaceutical and for environment sustainability”.
Date of AwardJun 2020
Original languageEnglish
SupervisorPeter Flatt (Supervisor)


  • Solid state Fermentation
  • Food-fermentation
  • Enzymes

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