Chung Hong Tan

Universiti Tenaga Nasional (UNITEN) | uniten · College of Engineering

Microalgal biofuel is a promising solution to replace fossil fuel as a renewable and environmental‐friendly energy source, thereby contributing to the United Nations (UN) Sustainable Development Goals (SDGs), in particular SDG‐7, or Affordable and Clean Energy. Unlike energy crops (like oil palm and sugar cane), microalgae benefit from faster growt...

Switchgear and control gear are susceptible to arc problems that arise from slowly developing defects such as partial discharge, arcing, and heating due to faulty connections. These issues can now be detected and monitored using modern technology. This study aims to explore the effectiveness of deep learning techniques, specifically 1D-CNN model, L...

A radiator is used to remove a portion of the heat generated by a vehicle engine. It is challenging to efficiently maintain the heat transfer in an automotive cooling system even though both internal and external systems need enough time to keep pace with catching up with evolving engine technology advancements. The effectiveness of a unique hybrid...

Fossil fuels have provided humans with an enormous and stable primary energy source to rapidly develop advanced technologies, increasingly efficient machines and industries, as well as greater varieties of consumer products. While humans enjoy the conveniences of the modern world, critical global issues have also been created, such as an exponentia...

Catalytic reactions in producing biofuels often face issues such as low product yield, low selectivity to preferred products and serious environmental issues which leads to the exploration of green technologies. Microwave technology is one of the green technologies that is widely applied in the field such as medical, food, signal processing or navi...

The utilization of fossil fuel has increased atmospheric carbon dioxide (CO 2 ) concentrations drastically over the last few decades. This leads to global warming and climate change, increasing the occurrence of more severe weather around the world. One promising solution to reduce anthropogenic CO 2 emissions is methanation. Many researchers and i...

The rapid spread of coronavirus disease 2019 (COVID-19) in early 2020 prompted a global lockdown from March to July 2020. Due to strict lockdown measures, many countries experienced economic downturns, negatively affecting many industries including energy, manufacturing, agriculture, finance, healthcare, food, education, tourism, and sports. Despit...

In our modern world, biotechnology products play important roles not only in our health and culture, but also various industries such as food, agriculture, sewage treatment, biofuels, nutraceuticals, and pharmaceuticals. Rapid technological advances in biotechnology over the last few decades have allowed industrial integration of mammalian cells (l...

Even though microalgae are able to produce various valuable metabolites, microalgal culture on an industrial scale still faces challenging difficulties. Open systems may be cheaper to construct, easier to operate and maintain, and possess greater surface area to volume ratio, but they are also easily contaminated, have high water loss due to evapor...

Rapid improvements in bioseparation technology, new regulatory directives, product quality constraints, and the production efficiency have necessitated the development of more advanced and powerful downstream bioprocesses for biotechnology and biopharmaceuticals industrial. This has transformed in dramatically improvements in traditional bioseparat...

The expanding aquaculture industry increases the prices of fishmeal, the main protein source in fish diet. A promising alternative is microalgal protein. Therefore, the protein production capacities of two green microalgae species, Chlorella sorokiniana CY1 and Chlorella vulgaris ESP-31, were investigated. After optimization, the maximum biomass an...

The expanding aquaculture industry increases the prices of fishmeal, the main protein source in fish diet. A promising alternative is microalgal protein. Therefore, we investigated the protein production capacities of green microalgae Chlorella sorokiniana CY1 and Chlorella vulgaris ESP-31. After optimization, the maximum biomass and protein produc...

Third generation biofuels, also known as microalgal biofuels, are promising alternatives to fossil fuels. One attractive option is microalgal biodiesel as a replacement for diesel fuel. Chlamydomonas sp. Tai-03 was previously optimized for maximal lipid production for biodiesel generation, achieving biomass growth and productivity of 3.48 ± 0.04 g/...

Abstract Scientific studies have demonstrated that it is possible to generate a wide variety of bioenergy from biomass residues and waste, and however its cost is not competitive with petro-fuels and other renewable energy. On-going efforts are continued extensively to improve conversion technologies in order to reduce production costs. The present...

In this work, the extraction of microalgal protein from wet Chlorella sorokiniana species using alcohol/salt liquid biphasic flotation (LBF) with the aid of ultrasonication for cell rupturing was proposed. The effect of varying crude feedstock concentration, flotation time, salt type, salt concentration, alcohol type, alcohol concentration, initial...

Photobioreactors (PBRs) have a major role in cultivating phototrophic microorganisms to fix CO2 and produce target products. Light penetration and distribution as the energy source and the supply of CO2 as the inorganic carbon source are the two key factors for PBR design. Among phototrophic microorganisms grown in PBRs, microalgae are the most pop...

In our search for a substitute energy source, microalgal biodiesel has presented itself as a potential candidate. However, the development of biodiesel results in the overproduction of crude glycerol, which can cause undesirable environmental issues. The environmental harm can be minimized by converting crude glycerol into value-added products. One...

Facing the global issues of dwindling oil reserves and global warming, the search for alternative green energy source has become a priority. Microalgal biofuels has been regarded as a potential sustainable energy source, due to the high oil yield per area of land, ease of culturing microalgae, zero net carbon emission and reduced competition for ar...

Spirulina platensis can mitigate CO2 emissions and simultaneously produce an antioxidant called C-phycocyanin (C-PC), which is a high value nutraceutical product. An innovative pH control system was used to cultivate S. platensis, in which CO2 feeding, instead of acid/alkaline titration, was used to control the pH of the culture. The optimum cultur...

Microalgae are widely regarded as the most promising source of green and sustainable fuel for the future. Compared to biofuels from terrestrial crops, the benefits of microalgal biofuels include high lipid content, rapid growth rate, high productivity per unit land area, and the ability to utilize wastewater for growth. In this study, five indigeno...

The development and promotion of biodiesel, a substitute energy source for fossil fuels, has resulted in the overproduction of crude glycerol, causing undesirable environmental issues. However, the environmental harm can be minimized by converting crude glycerol into useful products. One solution involves using microalga Schizochytrium limacinum SR...

Global concern for energy security and environmental sustainability has put a great prominence towards alternative energy resources, substituting the rapidly-depleting fossil fuels. Fossil fuels have been a major contributing factor for greenhouse gas production, leading to global warming. Hence, biofuels have been greatly researched in hopes to re...

Fishmeal is currently the major protein source for commercial aquaculture feed. Due to its unstable supply and increasing price, fishmeal is becoming more expensive and its availability will face significant challenges in the near future. Therefore, finding feasible alternatives to fishmeal is in urgent demand. Microalgae have been recognized as th...

Microbial lipases are popular biocatalysts due to their ability to catalyse diverse reactions such as hydrolysis, esterification, and acidolysis. Lipases function efficiently on various substrates in aqueous and non-aqueous media. Lipases are chemo-, regio-, and enantio-specific, and are useful in various industries, including those manufacturing f...