New Publication

Our review paper on photosynthetic bacteria has been published in the Reviews in Environmental Science and Bio/Technology, a Springer journal. Read the article here.

Abstract

Environmental management is crucial for sustainable growth and development. The use of microorganisms to clean up contaminated environment provides cheap alternative method to the conventional treatment methods. But the choice of easily grown, viable and effective natural occurring microorganism to do the cleaning is a major challenge. In this article we presented and reviewed the application of photosynthetic bacteria in bioremediation due to their utilisation of various kinds of pollutants, minimum nutrients requirement and the possibility of generating valuable products concomitantly cleaning the contaminated environment. Pollutants such as pesticides, heavy metals, dyes, crude oil and odour with the specific photosynthetic bacteria capable of degrading the pollutants were identified and discussed in this article. The possible value added products to be generated as well as the mechanism of degradation are also highlighted and discussed in the article. The utilisation of carbon dioxide and the generation of value added products while cleaning up polluted environment are the major advantages of using these bacteria in bioremediation and have both environmental and economic benefits.

Thank you!

Nur Atiqah Mohd Elias has just completed her research assistantship in Proteomics Lab. She was working on bacterial biohydrogen production from starch, using bacterial isolate from cattle. We would like to thank her for all the hard work over the past three months. All the best in your MSc study!

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Research Assistantship Opportunity

I have an opening for RA position leading to MSc by research degree. The project will be on bacterial biohydrogen production using starch as substrate. It involves microbiological characterisation, batch small scale fermentation and biohydrogen detection, and some molecular characterisations of hydrogen-production related genes. Immediate availability. Email me at firdausw@utm.my if interested.
For Malaysians only due to the nature of the grant.

Position opened until filled.

Update: 1 position available.

Congratulations!

Congratulations to Karzan Khalid and Idris Abdulrahman on successfully defending their MSc (Biotechnology) dissertation projects. They have been working on the isolation and characterisation of photosynthetic bacteria from the marine and aquaculture environment. Well done!

Our first publication on biohydrogen!

Our first publication on biohydrogen has been published in the Malaysian Journal of Microbiology (MJM). Read the article here.

Abstract

Aims: This study aimed at investigating the various hydrogen-producing bacteria isolated from three different bovine manure samples (dairy cow, feedlot cow and free grazing cow manures).

Methodology and results: Nutrient broth (NB) and Reinforced Clostridium medium (RCM) broth were used for the isolation of facultative and strict anaerobic bacteria. The isolates were subjected to batch fermentation to determine their capability to produce hydrogen (H2) using synthetic starch wastewater as substrate in 60 mL serum bottles. Biogases of interest (hydrogen, carbon dioxide, methane) produced were analyzed using a Residual Gas Analyser (RGA), which is a mass spectrometry-based analytical system. A total of 52 isolates were obtained of which 13 of the isolates showed the ability to produce H2, with the NF6 isolate having the highest production of 6.85 × 10-4 % partial pressure [% (pp)].

Conclusion, significance and impact study: From this study, culturable hydrogen-producing bacteria were successfully isolated from the three bovine manures. The results give an insight on the types of H2 producing bacteria present in the manure samples. These isolates will be useful for the further studies of H2 production using waste sources as substrates. The production of H2 by NF6 isolate will be optimized by varying parameters during the batch fermentation.