Heavy metal pollution has become a serious environmental issue in the last few decades. There is need to develop potential technology that can remove toxic heavy metals ions found polluted environments. This study was undertaken determine resistance levels of different concentrations using filamentous fungi Trichoderma aureoviride, T. harzianum, and virens. Based on results, virens strain T128 gave highest tolerance ability for Ni3+ Pb2+ 1200 mg/L concentration. The accumulation uptake...

A simple, fast, repeatable, and less laborious sample-preparation protocol based on gas chromatography–mass spectrometry was developed applied for the analysis of bioactive compounds derived from filamentous fungus Aspergillus niger strain SS10. The match factors spectra samples with reference to mass-spectral library fungal volatile were determined used study complex hydrocarbons other that separated using two different capillary columns nonpolar medium-polar stationary phases. More than...

Single cell of an indigenous phototrophic bacterium, Rhodovulum sulfidophilum, was incorporated in commercial fish feed for Oreochromis niloticus. The bacterial analyzed nutritional value and tested toxicity acceptability as aquaculture supplement. results showed higher survival rate significantly growth (p<0.001) O. niloticus fed with the bacteria feed. It is suggested that R. sulfidophilum can be utilized

Rhodovulum sulfidophilum was grown in settled undiluted and nonsterilized sardine processing wastewater (SPW). The aims were to evaluate the effects of inoculum size media on biomass production with simultaneous reduction chemical oxygen demand (COD).Three levels (10, 20 30% v/v) developed glutamate-malate (GMM) or SPW compared. highest (4.8 g l-1) obtained after 96-h culture 20% (v/v) size, but COD (85%) 120-h a GMM. In cultures 79-83%.Inoculum GMM supported good growth Rv. subsequent COD....

Aims: Rhodovulum sulfidophilum was grown in sardine processing wastewater to assess growth characteristics for the production of bacterial biomass with simultaneous reduction chemical oxygen demand. Methods and Results: Growth were compared diluted undiluted, settled non-settled growing anaerobic light aerobic dark conditions; also at different agitation speeds. The highest (8·75 g l−1) a demand 71% obtained unsettled, undiluted after 120 h culture 15% inoculum. In wastewater, (7·64 COD 77%...

Aquaculture industry is often generating waste that negatively impact to the environment. These wastes are rich in nutrients. Seaweed can utilize these This experiment was conducted a flow-through system (FTS) and recirculation (RS) land-based integrated multi-trophic aquaculture module using seaweed Kappaphycus alvarezii as one of components. The aim access efficiency removal nutrients culture. stocked at density 1 kg/tank rectangular plastic tank with 500 L seawater. generated from tanks...

The nutritional values of different species sea cucumber are greatly concerned because their dietary and curative properties. In this study, two cucumber, Holothuria edulis, a low-valued noncommercial species, scabra, high-valued commercial were selected to compare its proximate composition fatty acids. H. edulis prevalent in coastal water Sabah is not commercially importance like scabra. Sea cucumbers captured live from the marine habitat. All samples immediately eviscerated, freeze-dried...

Abstract Larvae of the giant tiger prawn Penaeus monodon were reared from naupliar to pos‐tlarval stage, based on a diet waste‐grown phototrophic bacterium Rhodovulum sulfido‐philum , marine diatom Skeletonema costatum and brine shrimp Artemia The experimental design consisted feeding protozoea with diatoms varying proportions bacterial biomass as D0 (0%), D1 (1%), D2 (2%), D3 (3%), D5 (5%), while mysis postlarvae fed above supplemented nauplii. Controls not bacteria (diet D0). addition R....

Fish wastes are the discarded parts include internal organs, viscera, bones, trimmings, tails, fins and skin of fishes. These portions while disposing cause major environmental damage. Usually, fishes ground into fishmeal for livestock aquaculture feed. This study was undertaken to explore biodiesel production based on fatty acids composition. The fish waste sample collected from Kota Kinabalu, Sabah market. drained excess water oven-dried at 55°C - 60°C complete dryness. Crude oils were...

Sustainable use of palm oil mill effluent (POME) has been the major focus in recent development industry due to fact that environmental issue brought by POME. The purpose this study was determine optimum incubation period purple non-sulphur bacterium (PNSB) reduction chemical oxygen demand (COD), total nitrogen (TN) and phosphorus (TP) settled POME dry cell weight, TN, TP yield PNSB. Pure isolate Rhodobacter sphaeroides strain UMSFW1 cultured under anaerobic condition at 2500 lux...

This study was undertaken to determine total protein (%) and profiles of amino acid made comparison between the aqueous organic solvent extracted mushroom. Extraction from two edible, Pleurotus sajor-caju (commercial) Schizophyllum commune (wild) types mushrooms. Four solvents were used for extraction include 100% aqueous, 50% ethanol, methanol acetone. True mushroom extract analyzed with colorimetric Lowry method acids determined by using high-performance liquid chromatograph (HPLC). The...

A study was carried out to determine the temporal and spatial distribution of nutrients Harmful Algal Blooming species (HABs) establish relationship between nutrient concentrations HABs density in coastal water Kota Belud, Sabah, Malaysia. Eight stations were set up four transects (each transect had two stations; one 500 meters seawards from shoreline, another five kilometers shoreline) along Belud area. Phytoplankton samples, samples situ environmental parameters collected during dry wet...

This experiment was conducted to determine the possibility of utilization vegetable waste juice in production purple non-sulfur bacterium Afifella marina biomass. Bacterium cultured four diluted such as, 10%, 20%, 30% and 40% (v/v) juices. In addition synthetic 112 media were used as control compare growth characteristics marine. The grew well 10% anaerobic light condition with highest 5.02 g/l dry cell weight fifth day culture, whereas total carotenoid 0.87 mg/g recorded third culture....

Purple Non-Sulfur Bacteria (PNSB), also known as phototrophic bacteria are widely distributed in both freshwater and marine environment capable to grow wide range of substrates. In this study, Bacterium Rhodobacter sphaeroides strain UMS2, a isolate was used study utilization fish hatchery waste. This conducted determine the nutritional values bioprocess product that grown Finally, waste bio-converted feed supplement monitor growth performance live Tubifex spp. Inoculum UMS2 developed 112...

This study was conducted to observe the abundance and distribution of phy-toplankton temporal spatial variation physico-chemical water parameters in coastal Kudat, Sabah, Malaysia. Water samples in-situ quality were taken from five selected locations May 2019 February 2020. The sampling location based on human-induced activities such as Marina Resort's Jetty (ST1), Sabah Ports' (ST2), aquaculture cage/pent (ST3), river's mouth (ST4) Landung Ayang's village (ST5). parameters: pH, salinity...

Purple non-sulfur bacteria (PNSB) are well known for their ability in transforming organic substrates own source of nutrients. The nutritional values leafy vegetable waste could be improved through bioconversion with PNSB. This study was conducted to access status bio-converted product and efficacy derived as aquaculture feed supplement. Proximate compositions wastes were after 6 days 30% inoculums Afifella marina strain ME (KC205142). crude proteins (%) ashes increased 51.7% 19.6%...

Kota Kinabalu Wetland is importantly habited of mangrove, diverse aquatic flora and fauna as well feeding stop for migratory birds. This wetland inundated with the tidal flow, connected a small river nearby coastal areas, thus. A study was carried out to determine spatial distribution dissolved inorganic nutrients phytoplankton diversity at (KK) Wetlands. Five stations, in which mouth Likas Bay, channel (two stations) area KK were selected this study. In-situ parameters water, water samples...

Commercial fish hatchery generates waste both organic and inorganic; the sources are primarily from uneaten food feces. Conventional methods of treating wastes will increase operating cost become extra burden in production. It is necessary to develop a new research application this nonconventional resource reduce negative impacts on environment. The whole project utilize through bioprocess for probiotic fortified live feed In study, chemical composition was determined understand suitability...

To produce Rhodobacter sphaeroides strain UMSPSB3 biomass with the reduction of chemical oxygen demand (COD) from palm oil mill effluent. Locally isolated phototrophic bacterium different inoculum levels were used in Palm Oil Mill effluent (POME). Collected POME was characterized before as substrate. Inoculum grown synthetic media and 48 hours to utilize Biotechnological laboratory, Borneo Marine Research Institute, University Malaysia Sabah, Kota Kinabalu, Malaysia, between February 2014...