This study presents the synergistic liquid-liquid extraction (LLE) of turquoise blue dye through the formulation of synergist extractants in the organic liquid phase, their extraction mechanism, as well as the selection of the best stripping agent. The results showed that a single extractant provides...

Fermentable sugars synthesized from pineapple waste (PW) biomass can be potentially used to supplement increasing demand for the application in fine chemicals, pharmaceuticals, agriculture, cosmetics, and many more. To produce fermentable sugars, pre-treatment process is required to break the complex...

This article aims to provide an overview on bioactive constituents and extraction procedure used of Malaysian medicinal plants. Search on the electronic databases including “ScienceDirect’, ‘Scopus, and ‘Web of Science’ was done based on related keywords, ‘Malaysia’,’ medicinal plant’ and ‘extraction...

Cyclodextrin (CD) is a non-reducing oligosaccharides constituted by variable number of units of glucose. CD has a doughnut-shaped molecule with hydrophilic outer surface and hydrophobic inner cavity. Such structure features enables CD to form inclusion complexes with guest compound. CD is produced by...

It is known that carbonate reservoirs account for about half of the world’s oil and gas reserves but not many have been put to production. In Central Luconia, Offshore Sarawak, Malaysia for example, there are about 200-250 known carbonate buildups that can account for between 40-70% of the country’s...

Cellulose is abundantly obtained from plant however the main drawback it has to be extracted from its source and purified by chemical separation process to remove the hemicellulose and lignin. Certain bacteria such as Acetobacter xylinum produce cellulose during fermentation process. This technique is...

Deterioration of surface water quality is the effect of anthropogenic activities in research areas due to rapid industrialization. The study was conducted to determine the spatial variation of the water quality of the industrial water effluent following the Malaysian National Quality Standard (MNQS)....

Eurycoma longifolia which is a renowned folk medicinal herb in South East Asia is rich in saponins. This study investigated the different extraction and fractionation techniques of saponins from the roots of the plant. Organic solvents such as acetone and ethyl acetate were used to precipitate and partition...

The root of Eurycoma longifolia or locally called as Tongkat Ali contains numerous health benefits, mainly due to the bioactive compounds. The main compound of interest is from the group of quassinoids which is also known as degraded triterpenoids such as eurycomanone, eurycomalactone, longilactone,...

Concentration process of cucumber juice is an essential step in cucumber extracts and juice production in the industry in order to minimise the volume and weight for storage and handling purposes besides to keep the quality of the products. Enriching total phenolic content (TPC) in cucumber juice that...

This study analysed the wound healing and antioxidant activities of Swietenia macrophylla seed and Syzygium aromaticum bud. The antioxidant activity of Swietenia macrophylla seed and Syzygium aromaticum bud were determined using diphenyl-1-picrylhydrazyl (DPPH) scavenging assay. The cytotoxicity activity...

The existence of humic substances is the key factor for antagonistic coloration of stabilized landfill leachate, which is a remarkable pollutant parameter. To examine the performance of natural starch from oil palm trunk (OPTS) like a coagulant is the focus of the current study, for the removal of color...

Casuarina equisetifolia empty fruit has been utilized as activated carbon material because it is abundantly available in nature. The fruit was activated by metals hydroxide, namely potassium hydroxide and sodium hydroxide for dyes adsorption. The present work was aimed to evaluate the adsorption properties...

Ammonium ion is an common pollutant which exist in municipal sewage, fertilizer plant discharge and agriculture wastewater. This study aims to investigate the potential of carbon black (from pyrolysis of tire waste) and modified carbon black on the adsorption of ammonium ion in aqueous solution. The...

Biodiesel is conventionally catalyzed by homogeneous catalyst such as sodium hydroxide or potassium hydroxide, which possesses several disadvantages as they are difficult to separate from biodiesel products and require a multiple neutralization step. Therefore, the usage and development of heterogeneous...

Methylene blue (MB) as a basic dye usually found in coloring usage industries can cause several injuries to human health and body. The current trend of treating MB is by using several wastewater treating techniques and adsorption technology. However, adsorption technology was considered to be efficient...

As the new type of green solvents, Deep eutectic solvents (DESs) might be the key to a better future. This mini review presents a brief discussion on the applications of DESs especially in oil and gas sector published in the past half a decade. Several reviews made on applications of DESs in different...

In this research, an experimental investigation was carried out in the existence of gasoline on the Carbon Dioxide hydrate. This was done to replicate or Understanding the development of gas hydrates in multi-phase transmission pipelines. The experiments are conducted in a Rocking cell Gas hydrate reactor,...

The detection of pharmaceutical such as acetylsalicylic acid (ASA) in water bodies has gained a great concern due to causing adverse effects on the environment. This study aims to explore the potential of magnetic crosslinked-chitosan (MACsorb) adsorbent in the removal of ASA. In the adsorbent synthesis...

Carbon capture, utilization, and storage (CCUS), has been deemed an essential component for climate change mitigation. Commercialization of CCUS requires an efficient transportation method of the captured carbon dioxide (CO2). Previous works have investigated the technological aspects for conventional...

The air conditioner is one of the devices that uses a high amount of electricity – more electricity consumption means more heat and greenhouse gases emitted to the environment if the electricity is generated by fossil fuel sources such as coal, diesel, natural gas etc. Energy-efficient control algorithms...

Increasing attention on the environmental issue especially the wastewater from the palm oil mill effluent (POME) has become one of the great concern to many researchers. The excessive amount of untreated POME may cause the reduction of oxygen and sunlight in the water, which in turn affects the aquatic...

A variety of toxic and harmful matters contribute to the severe impacts of water sources. Toxic pollutant such as heavy metals tend to deteriorate the environment vigorously due to its mobility. In this study, corncob based activated carbon (CCAC) was prepared for Cu (II) adsorption from aqueous solution....

A tool is constructed for Indoor Air Quality (IAQ) pre-assessment of pre-school buildings on the basis of a methodology that incorporates structured expert judgment and analytic hierarchy process (AHP). The tool calculates the level of indoor air pollutants such as Carbon Dioxide (CO2), Carbon Monoxide...

The construction industry has become one of the world’s biggest carbon emitter with the rapid urbanization process and rapid economic growth. It is actually believed that the built environment is a major contributor to a nation’s carbon emissions. The carbon emissions connected with the built environment...

Flood has occurred many times in Malaysia and it has greatly affected the residents that live in flood risk area such as Bukit Merah. Due to the climate change and land use changes issues, the flood and drought events seem to be occurred more frequently in larger scale in Bukit Merah. Therefore, the...

In the petroleum industry, produced water is regarded as the significant waste stream that constitutes a comparatively higher fraction of hydrocarbons, heavy metal ions & various contaminants. Because of the minimal quantity of freshwater, there is a need to investigate other resources. Using produced...

Biodegradable materials have attracted the industry with the increasingly global trend of biopolymers of low toxicity and durability. Chitosan is a high molecular weight and charging density naturally organic polyelectrolyte (biopolymer), which is obtained from chitin’s de-acetylation from the crustaceans...

The crystallization of struvite (MgNH4PO4.6H2O) is known as an effective way for recovering nutrients from landfill leachate (LL). Recently, several studies have been done to examine nonconventional sources of phosphorus, in order to improve the applicability of struvite technology. This study aimed...

Hydrogen sulphide (H2S) is always present in biogas, and causes odours, corrosiveness, and sulphur emissions when the gas is burned. It is used regularly in internal combustion engines, turbines or fuel cells, the removal of hydrogen sulphide from biogas is required to protect the equipment. More importantly,...

Biochar is a charcoal that produce from biomass feedstock and act as promising agent for many application such as wastewater treatment, energy production, soil amendment and gas storage. This review summarizes recent research development on production, properties and application of biochar. This review...

Coconut shell was used as a precursor to prepare activated carbon using potassium hydroxide (KOH) as a chemical activating agent for carbon dioxide (CO2) adsorption at ambient conditions. The purpose of this study was to determine the optimum activation parameters of the activated carbon using Response...

Worldwide economic growth, professional and domestic lifestyle and the ecosystem are affected by a lack of fresh water supplies. Oceans are the 97% part of earth’s crust, due to increasing demand of growing industrialization and population it has become an important source of freshwater over the last...

Phenolics are bioactive compounds produced in plants, which are primarily associated with plants defense mechanisms. The compounds possessed antioxidant and anti-inflammatory properties which exert favourable effects on human health. However in order to achieve the benefit, the phenolics need to be isolated...

Cenozoic sediments in Peninsular Malaysia occur along the western and eastern part of the Peninsular as onshore basins and in the South China Sea and the Straits of Malacca as offshore basins. The study is about reviewing the stratigraphy, sedimentation and tectonic pattern of the onshore Cenozoic basins/sediments,...

Soil erosion is a common challenge faced by geotechnical engineers, occurrings naturally in the environment due to wind, water, and gravity. The loss of soil from the land surface can be detrimental to both terrestrial and aquatic environments by depleting nutrients, increasing runoff and affecting aquatic...

In the last decade, high consumption of fossil fuels has led to a serious energy crisis because of the increased energy demand for industrialization and modernization. It caused many environmental concerns because of the greenhouse gas emission along with energy security issues. These fossil fuels resources...

Currently, the huge bulk of glycerol formed during biodiesel production as a by-product offered an abundant and low-cost feedstock. Researchers have shown a growing interest in using glycerol as a sustainable feedstock to produce functional chemicals. In this work, ketalization of glycerol using acetone...

Technology of material development on drug delivery system has expanded vastly nowadays. The potential of alginate and carboxymethyl cellulose (CMC) as drug delivery carrier is presented. The alginate and CMC was prepared as hybrid hydrogels via sol-gel method and dried by supercritical CO2 and at ambient...

This study performs a review of the adsorptive removal of volatile organic compounds such as benzene, toluene, ethylbenzene and xylene (BTEX) from various industrial wastewaters. The literature has been reviewed in accordance with a variety of adsorbents that have been applied in BTEX removal based on...