Browsing School of Bioprocess Engineering (Articles) by Author "Zarina, Zakaria"

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    • Analysis of major fragrant compounds from Citrus grandis flowers extracts 

      Zarina, Zakaria; Suhana, Zakaria; Mohd Azlan, Mohd Ishak (Universiti Kebangsaan Malaysia (UKM)Fakulti Sains dan Teknologi, 2010)
      Various sampling techniques such as hydrodistillation, Soxhlet extraction and solid phase micro extraction (SPME) were used to extract compounds, i.e. the active components attributed to fragrance of C. grandis flowers. ...

    • Catalytic hydrogenation of carbon dioxide by platinum doped nickel oxide catalyst 

      Alina Rahayu, Mohamed; Zarina, Zakaria; Mohamed Zulkali, Mohamed Daud, Prof. Madya Dr. (IDOSI Publications, 2010)
      The abundant amount of carbon dioxide gas from unwarranted activities into the atmosphere creating environmental pollution which leads to green house gas effect as well as global warming. However, carbon dioxide can utilized ...

    • Halal based sourced EM for turbidity reducing in wastewater treatment 

      Zarina, Zakaria; Noorulnajwa Diyana, Yaacob; Mohd Mustafa Al-Bakri, Abdullah; Che Mohd Ruzaidi, Ghazali, Prof. Madya (Trans Tech Publications, 2014)
      Effective Microorganism (EM) technology was found as the credible solution to solve many environmental problems including wastewater issues. The EM which is in the form of EM mud ball was tested to be effectively used for ...

    • Optimization of Protein Content in Earthworm-based Fish Feed Formulation for Catfish (Clarius gariepinus) 

      Zarina, Zakaria; N oor Hasyierah, Mohd Salleh; Alina Rahayu, Mohamed; Ahmad Anas, N.G.; Siti Nur Amirah, Idris (Universiti Kebangsaan Malaysia, 2012)
      Pengoptimuman kandungan protein dalam formulasi makanan ikan berasaskan cacing tanah dikaji. Reka bentuk Faktorial Penuh dan Reka bentuk Komposit Berpusat telah digunakan untuk analisis dalam kajian ini bagi mengenal pasti ...