Browsing by Author "Humairah Mohd Nasir"

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    Cultured marine bacteria isolated from sponges for discovery of bioactive compounds
    (Terengganu: Universiti Malaysia Terengganu, 2014) Humairah Mohd Nasir
    Association of marine bacteria and sponges was vastly reported since decades ago. Their contribution in the discovery of new bioactive compounds is also not a new issue. Interestingly, structural similarities between the metabolites of the sponge and its associated bacteria, those found within its tissue, indicate that these compounds are of bacterial origin. This study was conducted to isolate and characterize bacteria from marine sponges and to investigate the release of antibacterial compounds from marine isolates under ecologically relevant conditions.
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    Microbial diversity of freshwater fidhes from polluted environment.
    (Universiti Malaysia Terengganu (UMT), 2008) Humairah Mohd Nasir
    Many recent studies were focusing on heavy metal pollution but a little attention on bacteria contamination. Since the freshwater fishes were taken in human diet, it is very important to know the diversity of the bacteria associated with the fishes either it is pathogenic or not. This study was conducted to investigate the microbial diversity from freshwater fishes from polluted environment. In this study, seven species of freshwater fishes were examined included Ompok siluroides, Clarias meladerma, Labiobarbus leptocheilus, Osteocheilus hesselti, Oxygaster anomalura, Rasbora natura and Rasbora bankanensis. The fishes were collected in August 2007 from Paya Sungai Udang, a swamp that believed polluted with leachate from groundwater since it is situated next to a landfill. The identification of the bacteria was done by using macro, micromorphology and biochemical tests.