Pau-Loke Show

Khalifa University | KU · Department of Chemical Engineering

PYROASIA forum is an effort to bring a network of researchers and practitioners for the advancement and commercialization of pyrolysis and related technologies for future fuels. Participants are cordially invited to submit their original work for presentation. PYROASIA symposium 2023 will include presentations from all thermo-chemical conversion te...

Water contamination due to soluble synthetic dyes has serious concerns. Membrane-based wastewater treatments are emerging as a preferred choice for removing dyes from water. Poly(vinylidene fluoride) (PVDF)-based nanomembranes have gained much popularity due to their favorable features. This review explores the application of PVDF-based nanomembran...

The supernatant from Bacillus subtilis possessed significant antifungal activity against Fusarium oxysporum and Rhizoctonia solani, two harmful pathogenic fungi. In this study, antifungal compounds were purified from the extracellular extract of B. subtilis including volatile organic compounds (VOCs) and membranes protein. The antifungal compound w...

While clay has been extensively studied for its ability to remove chlorophyll from vegetable oil, its effects and suitability on microalgae oil have received far less attention. In this study, three different clay types are evaluated and compared for their ability to dechlorophyllise microalgae oil. The clays involved are kaolinite, Fuller’s earth...

The textile, paper and pulp, distillery, and pharmaceutical industries are only a few of the many sectors that contribute significantly to the contamination of water bodies and their unsuitability for human use. Pharmaceuticals, which are credited with saving millions of lives in recent decades, have emerged as a new category of environmental hazar...

This work reviews hydrothermal subcritical water pretreatment to enhance biogas production through anaerobic digestion. The complexity of the lignocellulosic structure has been the main limitation contributing to unsatisfactory biogas production throughout the anaerobic digestion. The high resistance of the structure to biological hydrolysis has in...

The current research demonstrates the capability of hydrodynamic cavitation (HC) for the manufacture of ester sourcing Hippophae rhamnoides (HiRO) seed oil, which is non-edible in nature. According to the authors' best knowledge, the HC pilot developed assembly has not been put to use in any research pertaining to the manufacturing of biodiesel fro...

The number of restaurants is increasing day by day in almost all the developing countries, causing the increase in the generation of restaurant wastewaters. Various activities (i.e., cleaning, washing, and cooking) going on in the restaurant kitchen lead to restaurant wastewater (RWW). RWW has high concentrations of chemical oxygen demand (COD), bi...

A novel kinetic model has been developed to explain the degradation of total petroleum hydrocarbons. Microbiome engineered biochar amendment may result in a synergistic impact on degradation of total petroleum hydrocarbons (TPHs). Therefore, the present study analyzed the potential of hydrocarbon-degrading bacteria A designated as Aeromonas hydroph...

Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio...

The increased water scarcity, depletion of freshwater resources, and rising environmental awareness are stressing for the development of sustainable wastewater treatment processes. Microalgae-based wastewater treatment has resulted in a paradigm shift in our approach toward nutrient removal and simultaneous resource recovery from wastewater. Wastew...

The present study reported the biological treatment in order to improve the removal of recalcitrant dyes including aniline blue, reactive black 5, orange II, and crystal violet in contaminated water. The results indicated the biodegradation efficiency by the Fusarium oxysporum was significantly enhanced by the addition of mediator and by adjusting...

Green biomass is a renewable and biodegradable material that has the potential use to trap urea to develop a high-efficiency urea fertilizer for crops' better performance. Current work examined the morphology, chemical composition, biodegradability, urea release, soil health, and plant growth effects of the SRF films subjected to changes in the thi...

The protein hydrolysate that contains bioactive peptides of yellowfin tuna (Thunnus albacares) skin collagen with antioxidant activity has been successfully studied by using in silico and in vitro assays. We found that using the in silico assessment, the antioxidant peptides can be found from the precursor (type I α1 and α2 collagen of yellowfin tu...

The increase in global temperature calls for ambitious action to reduce the release of greenhouse gases into the atmosphere. The transportation sector contributes up to 25% of the total emissions released, mainly from the burning of vehicle fuel. Therefore, scientists from all around the world are focusing on finding a sustainable alternative to co...

The critical challenge being faced by our current modern society on a global scale is to reduce the surging effects of climate change and global warming, being caused by anthropogenic emissions of CO2 in the environment. Present study reports the surface driven adsorption potential of deep eutectic solvents (DESs) surface functionalized cerium oxid...

Cellulose is the most abundant polysaccharide on earth. It has a large number of desirable properties. Its low toxicity makes it more useful for a variety of applications. Nowadays, its composites are used in most engineering fields. Composite consists of a polymer matrix and use as a reinforcing material. By reducing the cost of traditional fibers...

The Agrobacterium-mediated transient gene expression system is a rapid and efficient method for heterologous recombinant protein expression in plants. The fermentation of genetically modified Agrobacterium tumefaciens is an important step in increasing the efficiency of recombinant protein production in plants. However, the limitation of this syste...

Exploring the influence of various heteroatoms on MNxC and developing novel synthetic MNC of strategies are great significance to improve the efficiency of continuable energy transformation and storage technologies. In this work, an economic and environmental in-situ doping synthesis scheme for extensible synthesis Co, N and S doped multiple porous...

Sustainable biodiesel synthesis from waste, toxic and non-edible oil seeds give a sustainable opportunity to combat energy crises and environmental depreciation. A new non-edible oil of Diospyros malabarica (Malabar Ebony) was analyzed for the synthesis of eco-friendly biodiesel using newly synthesized green nanoparticles (NPs) of Cadmium oxide (Cd...

There is a great demand for a clean, economical, and long-term energy source, due to the depletion of fossil fuels. Large-scale production of microalgae biomass for biofuel production is likely attributable to several challenges, including the high cost of photobioreactors, the need for a sustainable medium for optimum development, and time-consumi...

The increase in worldwide demand for energy is driven by the rapid increase in population and exponential economic development. This resulted in the fast depletion of fossil fuel supplies and unprecedented levels of greenhouse gas in the atmosphere. To valorize biomass into different bioproducts, one of the popular and carbon-neutral alternatives i...

Concerns have been raised about the effects of fossil fuel combustion on global warming and climate change. Fuel consumer behavior is also heavily influenced by factors such as fluctuating fuel prices and the need for a consistent and reliable fuel supply. Microalgae fuel is gaining popularity in the aviation industry as a potential source of energ...

Cellulose is the most abundant polysaccharide on earth. It has a large number of desirable properties. Its low toxicity makes it more useful for a variety of applications. Nowadays, its composites are used in most engineering fields. Composite consists of a polymer matrix and use as a reinforcing material. By reducing the cost of traditional fibers...

The International Maritime Organization has set a goal to achieve a 50% reduction of total annual greenhouse gas emission related to the international shipping by 2050 compared to the 2008 baseline emissions. Malaysia government has taken an initiative to investigate the assessment (cost-effectiveness) of this International Maritime Organization's...

Cell-free system is an easy, rapid, sensitive platform for production of various chemicals and biofuels. The system lacks membrane-bound barriers, but it possesses all of the necessary substrates, biomolecules, and machinery that are needed for the production of desired products. In addition, cell-free system offers an alternative to existing in vi...

This study reports optimization and simulation of biodiesel synthesis from waste cooking oil through supercritical transesterification reaction without the use of any catalyst. Although the catalyst enhances the reaction rate but due to the presence of water contents in waste cooking oil, the use of catalyst could cause a negative impact on the bio...

The present study examines food-waste (FW) and agriculture compost media (ACM) as cultivation media for D. armatus in conjunction with the bold basal medium (BBM). The microalgae cultivated in different dilutions of organic (FW or ACM) and inorganic (BBM) offered promising results at 3:1 (organic, FW or ACM: inorganic, BBM) dilution for one month....

Epoxy resins are important thermosetting polymers. They are widely used in many applications i.e., adhesives, plastics, coatings, and sealers. Epoxy molding compounds have attained dominance among common materials due to their excellent mechanical properties. Here, the sol-gel simple method was applied to distinguish the impact on the colloidal tim...

Microalgae are photoautotrophic microorganisms which comprise of species from several phyla. Microalgae are promising in producing a varieties of products, including food, feed supplements, chemicals, and biofuels. Medicinal supplements derived from microalgae are of a significant market in which compounds such as -carotene, astaxanthin, polyunsatu...

The International Maritime Organization (IMO) has placed stricter controls on several aspects of global maritime transport operations to protect the environment. In light of this, the goal of this study is to examine and assess the different prospective paths and technologies that will assist the shipping industry in decarbonizing its operations. W...

Algal biodiesel is of growing interest in reducing carbon emissions to the atmosphere. The production of biodiesel is affected by many process parameters. Although many research works have been conducted, the influence of each parameter on biodiesel production is not well understood when considering a complete system. Therefore, the experimental da...

The control and monitoring of the environmental conditions in mushroom cultivation has been a challenge in the mushroom industry. Currently, research has been conducted to implement successful remote environmental monitoring, or, in some cases, remote environmental control, yet there is not yet a combination of both these systems providing live str...

Red chili is a climacteric fruit that still undergoes respiration after harvest. During storage, it is susceptible to mechanical, physical, and physiological damage and decay incidence, therefore a method is needed to protect it so that the quality losses can be minimized. One way this can be achieved is by applying edible coatings that can be made...

The persistent fight against global environmental threats and energy catastrophe is currently a major concern for the economic development of bioenergy across the entire country. Hence, traditional fuel-based reserves are overburdened to cope with the rapid energy crisis, necessitating an urgent need for an innovative carbon-neutral green-energy re...

Identification of microalgae species is of great importance due to the uprising of Harmful Algae Blooms (HABs), affecting both the aquatic habitat and human health. On the contrary, microalgae have been identified as future green biomass and alternatives due to their promising bioactive compounds activities that play a significant role in many indu...

Sustainable and cheaper intercession coupled with green technologies could be the feasible and finest approach for addressing the solicitous snags like energy crises, greenhouse gas emissions and fossil fuel depletions globally. Biodiesel appeared as a feasible substitute to achieve net zero emissions globally. Biodiesel produced from waste, toxic...

Sustainable biodiesel synthesis from waste, toxic and non-edible oil seeds give a sustainable opportunity to combat energy crises and environmental depreciation. A new non-edible oil of Diospyros malabarica (Malabar Ebony) was analyzed for the synthesis of eco-friendly biodiesel using newly synthesized green nanoparticles (NPs) of Cadmium oxide (Cd...

Microbiologically influenced corrosion (MIC), commonly known as biocorrosion, is a destructive phenomenon that can be initiated by the bioactivities of microbes. It can occur in the diesel mixture storage tank, especially due to the presence of biodiesel, because the biodegradability characteristic of biodiesel results in the enhancement of microbi...

Chemical fertilizer is the most ubiquitous nutrient source used to cultivate microalgae. However, the bottlenecks associated to its vast usage such as high cost and environmental hazards are evident, whose solution is to include a search for alternative nutrient sources. Thus, nutrient-rich wastewater has been utilized in recent years for microalga...

Overgrowth of microalgae will result in harmful algae blooms that can affect the aquatic ecosystem and human health. Therefore, the quantitation of chlorophyll pigments can be used as an indicator of algae bloom. However, it is difficult to monitor the geographical and temporal distribution of chlorophyll in the aquatic environment. Accordingly, an...

Palladium (Pd) membranes are a crucial device for separating hydrogen and are usually operated at normal pressure on the permeate side with a single outlet. Instead of these common operating conditions, the difference between using a double outlet and a single outlet is studied. Four different vacuum degrees (15–60 kPa) are applied on the permeate...

Macroalgae, with short growth cycles, and high CO2 fixation capacity, are third-generation biomass mainstays that play an essential role as a global carbon sink. Macroalgal biochar plays a crucial role in soil improvement, pollutant adsorption, electrodes, and capacitors, and it has already contributed to both ecological and economic fields. Howeve...

Microplastics (size <5 mm) debris are environmentally persistent pollutants that severely affect terrestrial ecosystems by promoting the loss of soil fertility, and microbiome. The adverse effect of microplastics on the terrestrial ecosystem led to changes in physic-chemical and biological characteristics of soil resulting changes in nutrient cycli...

The identification of microalgae species is an important tool in scientific research and commercial application to prevent harmful algae blooms (HABs) and recognizing potential microalgae strains for the bioaccumulation of valuable bioactive ingredients. The aim of this study is to incorporate rapid, high-accuracy, reliable, low-cost, simple, and s...

Management of late blight of potato incited by Phytophthora infestans remains a major challenge. Coevolution of pathogen with resistant strains and the rise of fungicide resistance have made it more challenging to prevent the spread of P. infestans. Here, the anti-oomycete potential of Bacillus velezensis VB7 against P. infestans through pan-genome...

The heavy metal toxicity affects the aquatic plants and animals disturbing the biodiversity, and ecological balance, and causing bioaccumulation of heavy metals. Industrialization and urbanization are inevitable in modern-day life, the control and detoxification methods need to be accorded to meet the hazardous environment. Microorganisms and plant...

This study presented a novel methodology to predict microalgae chlorophyll content from colour models using linear regression and artificial neural network. The analysis was performed using SPSS software. Type of extractant solvents and image indexes were used as the input data for the artificial neural network calculation. The findings revealed th...

Machine Learning is quickly becoming an impending game changer for transforming big data thrust from the bioprocessing industry into actionable output. However, the complex data set from bioprocess, lagging cyber-integrated sensor system, and issues with storage scalability limit machine learning real-time application. Hence, it is imperative to kn...

Implementation of outdoor photobioreactors has been challenged by an extremely oversaturated daily peak of solar irradiance. This study aims to understand the role of column size and paranet shading as well as to investigate the most convenient light control in outdoor cyanobacterial culture. The photobioreactor (PBR) consisted of plastic columns w...

Microalgae are microorganisms that are often found in freshwater, marine, and brackish water systems. Due to the metabolic diversity of these microorganisms, they may be used for biotechnological applications to address environmental issues, food insecurity, and illnesses. Microalgae culture on a large scale for the production of lipids, nutraceuti...

Phycoremediation is gaining attention not only as a pollutant mitigation approach but also as one of the most cost-effective paths to achieve carbon neutrality. When compared to conventional treatment methods, phycoremediation is highly effective in removing noxious substances from wastewater and is inexpensive, eco-friendly, abundantly available,...

The usage of nanoparticles in enhanced oil recovery (EOR) has been numerous due to their captivating ultra-small size and eccentric thermal, electrical, and interfacial modification properties. However, nanoparticles in their bare form could suffer from several drawbacks due to possible stability issues. The incorporation of a synergist into the pr...

Optimizing the structure and components is a prevalent strategy for increasing electrocatalytic energy-saving H2 fuel production. One of the sustainable and efficient techniques is electrocatalytic water splitting for H2 generation, but it is still restricted by the kinetically sluggish OER. Due to the lower standard oxidation potential of −0.33 V,...

Vast amounts of plastic waste are causing serious environmental issues and urge to develop of new remediation methods. The aim of the study is to determine the role of (nitric acid), organic (starch addition), and biological (Pseudomonas aeruginosa) soil amendments on the degradation of Polyethylene (PE) and phytotoxic assessment for the growth of...

Landfilling is the most widely used disposal method for municipal solid waste around the world. The main disadvantage of this strategy is the formation of leachate, among other aspects. Landfill leachate contains highly toxic and bio-refractory substances that are detrimental to the environment and human health. Hence, the risk of discharging poten...

Date palm (Phoenix dactylifera L.) has gained increment in cultivation worldwide. An increase in cultivation has a direct and profound effect on date seed waste generation. This study aims to highlight the valorization potential of date seed waste by studying the fiber, sugar, and color profiles of 18 date seed varieties. The indigestibility of neu...

Water usage increased alongside its competitiveness due to its finite amount. Yet, many industries still rely on this finite resource thus recalling the need to recirculate their water for production. Circular bioeconomy is presently the new approach emphasizing on the ‘end-of-life’ concept with reusing, recycling, and recovering materials. Microal...