
About
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Introduction
Meisam Tabatabaei is a Professor of Environmental Biotechnology at Universiti Malaysia Terengganu; Lead collaborator of the Lancet Countdown on Public Health and Climate Change (UCL, UK); Associate Editor of Critical Reviews in Biotechnology (Taylor & Francis); United Nations Development Program (UNDP) Collaborator; Editorial/Advisory Board Member of Intl. J. Life Cycle Assessment (Springer), Data In Brief (Elsevier), Biofuel Research Journal & Scientific Reports (Nature).
Additional affiliations
June 2021 - December 2023
May 2020 - present
Publications
Publications (486)
Growing concerns about greenhouse gas emissions have accelerated research into converting CO2 into valuable products like methanol. Catalytic hydrogenation, utilizing a catalyst in a thermochemical process, offers a promising solution for reducing atmospheric CO2 and combating climate change. However, optimizing operating conditions and selecting s...
Phase transitions are fundamental phenomena in physics that have been extensively studied owing to their applications across diverse industrial sectors, including energy, power, healthcare, and the environment. An example of such applications in the energy sector is thermal energy storage using phase change materials. In such systems, and indeed in...
Integrating renewable energy technologies into agriculture offers a promising approach to significantly reducing carbon emissions. Agriculture is inherently energy-intensive, with substantial reliance on fossil fuels for various operations, including machinery, irrigation, heating, cooling, and processing. However, these systems come with their own...
While the agricultural sector plays a profound role in food provisioning, achieving
sustainability poses formidable challenges worldwide. In this context, this study projects the environmental impacts of China’s agricultural sector in the years 2030 and 2050 in line with the framework of shared socioeconomic pathways (SSPs) in comparison to the bas...
Rapeseed straw, a widely available waste stream typically disposed of by field burning, was utilized as a biorefinery feedstock for biofuel and mycoprotein production across three different scenarios. Scenario 1 focused on biomethane production and optimization, while scenarios 2 and 3 aimed at ethanol and mycoprotein production using, an edible as...
This study presents an innovative cascade biorefinery process that efficiently converts furfural residues (FRs) into valuable bioethanol and pyrolytic oil. Two pretreatment methods, acetic acid/glycerol (R1) and sulfuric acid/glycerol (R2), were applied to fractionate FRs biomass. Optimized pretreatment conditions increased the cellulose accessibil...
Exergy analysis, along with its extensions, plays a pivotal role in understanding and improving the efficiency and
sustainability of energy systems. In the realm of renewable energy, diesel engines fueled by biodiesel have
received significant attention through exergy-based analyses. This paper aims to comprehensively investigate the
effects of int...
It is highly desirable to seek green and sustainable technologies, such as employing photothermal effects to drive energy catalysis processes to address the high energy demand and associated environmental impacts induced by the current methods. The photothermocatalysis process is an emerging research area with great potential in efficiently convert...
The wide application of diesel engines globally and the resulting exhaust emissions have been the driving force behind producing eco-friendly alternatives to fossil diesel. Biodiesel derived from triglycerides is a promising replacement for fossil diesel due to less contribution to greenhouse gases and other harmful emissions. Transesterification i...
Despite the exceptional performance of recyclable biphasic pretreatment systems (i.e., p-toluenesulfonic acid (TsOH)/pentanol, H2SO4/butanol, and AlCl3/MTHF) in the holistic fractionation of lignocellulosic biomass (LCB), there remains a significant gap in understanding of the intricate mechanisms governing the rapid dissolution of lignin and xylan...
Besides having adverse environmental impacts, power production from conventional sources is severely threatened by uncertainties, such as the COVID-19 pandemic and political conflicts between energy-producing nations. These uncertainties and risks highlight the unsustainability of energy security in conventional power generation systems. Hence, gre...
This study investigates using lignite waste as a carrier matrix for creating engineered nitro-humic fertilizer (NHF). The NHF is synthesized through an innovative ozone oxidation method and nitrogen enrichment. Agronomic efficiency was evaluated through maize growth responses, soil incubation experiments, and fertilizer performance, comparing NHF t...
This study confirmed the efficacy of modified electrode microbial fuel cells (MFCs) in removing chemical oxygen demand (COD) and generating electricity using wastewater from industrial meat processing. The findings of linear sweep voltammetry (LSV) and cyclic voltammetry (CV) demonstrated that applying CuO particles to carbon cloth (CC) significant...
While e-waste poses significant environmental and health risks, it also harbors valuable metals like gold, ripe for recycling. However, extracting gold from e-waste carries its own ecological footprint. Therefore, employing tools like Life Cycle Assessment (LCA) to evaluate environmental impacts and identify mitigation measures is imperative. This...
Furfural is a versatile chemical building block derived from hemicellulose-rich lignocellulosic biomass. Considering the availability of various process routes and conditions, it is crucial to determine the most environmentally sustainable production routes and conditions for furfural production. This study evaluates the life cycle environmental im...
The present study is motivated by the need to address the environmental issues related to dairy and ethanol plant wastewaters and to generate valuable products, including mycoprotein and bioenergy, through a novel three-phase fungi-based biorefinery. In the initial phase of the biorefining process, the cultivation conditions of Aspergillus oryzae w...
One of the most current discussions in the transportation sector is air pollution caused by diesel engines. In fact, even with the advances in engine technologies, the combustion of diesel in internal combustion engines leads to the significant release of toxic gases into the atmosphere, such as particulate matter and nitrogen oxide, posing threats...
Hydrothermal carbonization (HTC) is a process that converts biomass into versatile hydrochar without the need for prior drying. The physicochemical properties of hydrochar are influenced by biomass properties and processing parameters, making it challenging to optimize for specific applications through trial-and-error experiments. To save time and...
Sustainable socio-economic development largely depends on the sustainability of the energy supply from economic, environmental, and public health perspectives. Fossil fuel combustion only meets the first element of this equation and is hence rendered unsustainable. Biofuels are advantageous from a public health perspective, but their environmental...
The paper focuses on developing a machine-learning model to analyze and optimize product distribution and composition in biomass-coal co-pyrolysis
The unfavorable physicochemical properties of biomass pyrolysis bio-oil make it unsuitable for use in energy/ chemical infrastructure. Various physical/thermochemical methods should be employed to enhance bio-oil quality to the desired level. Thermochemical techniques (catalytic cracking, hydrodeoxygenation, and steam reforming) can effectively enh...
Life cycle assessment was used to evaluate the environmental impacts of phytoplanktonic biofuels as possible sustainable alternatives to fossil fuels. Three scenarios were examined for converting planktonic biomass into higher-value commodities and energy streams using the alga Scenedesmus sp. and the cyanobacterium Arthrospira sp. as the species o...
Chemical and biomass processing systems release volatile matter compounds into the environment daily. Catalytic reforming can convert these compounds into valuable fuels, but developing stable and efficient catalysts is challenging. Machine learning can handle complex relationships in big data and optimize reaction conditions, making it an effectiv...
The increasing emphasis on the development of green replacements to traditional organic solvents and ionic liquids (ILs) can be attributed to the rising concerns over human health and detrimental impacts of conventional solvents towards the environment. A new generation of solvents inspired by nature and extracted from plant bioresources has evolve...
Concerns about carbon emissions and global warming have mobilized the world toward decarburization through various strategies, such as using zero or low-carbon products. One of the most important current strategies in decarburization is to eliminate or reduce the use of fossil fuels as one of the world’s largest sources of carbon emissions. In line...
Global warming and climate change are critical problems threatening human health and ecosystems. Generally, fossil fuels play a key role in carbon emissions as one effective factor in global warming. Accordingly, researchers and governments have focused on many investigations in the search for low-carbon alternatives to fossil fuels. In line with t...
This work aimed to study an integrated pretreatment technology employing p-toluenesulfonic acid (TsOH)-catalyzed liquid hot water (LHW) and short-time ball milling for the complete conversion of poplar biomass to xylooligosaccharides (XOS), glucose, and native-like lignin. The optimized TsOH-catalyzed LHW pretreatment solubilized 98.5% of hemicellu...
Hydrothermal carbonization (HTC) is a process that converts biomass into versatile hydrochar without the need for prior drying. The physicochemical properties of hydrochar are influenced by biomass properties and processing parameters, making it challenging to optimize for specific applications through trial-and-error experiments. To save time and...
Co-pyrolysis of biomass feedstocks with polymeric wastes is a promising strategy for improving the quantity and quality parameters of the resulting liquid fuel. Numerous experimental measurements are typically conducted to find the optimal operating conditions. However, performing co-pyrolysis experiments is highly challenging due to the need for c...
Developing carbon-neutral bioenergy sources and bioproducts is an extraordinary opportunity for achieving an environmentally friendly economy. However, the overconsumption of resources in bioenergy and bioproduct production causes severe environmental concerns. The green biorefinery concept is one of the most attractive solutions for sustainably pr...
Chitin is a naturally occurring biopolymer, while chitosan is a deacetylated derivative of chitin. The unique properties of chitin/chitosan, such as nitrogen-rich, biodegradability, non-toxicity, high adsorption capacity, and biocompatibility, allow them to be utilized as precursors for CO2 adsorbents in pursuing the circular economy. This review p...
Chitin, as the main component of the exoskeleton of Arthropoda, is a highly available natural polymer that can be processed into various value-added products. Its most important derivative, i.e., chitosan, comprising β-1,4-linked 2-amino-2-deoxy-β-d-glucose (deacetylated d-glucosamine) and N-acetyl-d-glucosamine units, can be prepared via alkaline...
Mucilages are natural compounds consisting mainly of polysaccharides with complex chemical structures. Mucilages also contain uronic acids, proteins, lipids, and bioactive compounds. Because of their unique properties, mucilages are used in various industries, including food, cosmetics, and pharmaceuticals. Typically, commercial gums are composed o...
Depending on its physicochemical properties and antibacterial activities, chitosan can have a wide range of applications in food, pharmaceutical, medicine, cosmetics, agriculture, and aquaculture. In this experimental study, chitosan was extracted from shrimp waste through conventional extraction, microwave-assisted extraction, and conventional ext...
Chemical and biomass processing systems release volatile matter compounds into the environment daily. Catalytic reforming can convert these compounds into valuable fuels, but developing stable and efficient catalysts is challenging. Machine learning can handle complex relationships in big data and optimize reaction conditions, making it an effectiv...
The gasification process can treat and valorize municipal solid waste (MSW) in an environmentally and economically friendly way. Using this process, MSW can be safely disposed of and sustainably converted into bioenergy as part of regional planning. Experimental laboratory data is a key component in designing, optimizing, controlling, and scaling u...
The livestock industry needs to use crop straws that are highly digestible to improve feed productivity and reduce ruminal methane emissions. Hence, this study aimed to use the ozonation and pelleting processes to enhance the digestibility and reduce the ruminal methane emissions of wheat straw enriched with two nitrogen sources (i.e., urea and hea...
Fossil-derived products contribute significantly to greenhouse gas emissions. Transitioning from fossil-based to bio-based products is an effective solution to this problem. There has been substantial research on how biorefinery systems can help achieve such an aim. Marine shell-based biorefinery systems have been proposed in the past, but their en...
The current study aims to examine the economically viable biomass feedstocks for bioenergy generation and their export potential. The Product Space Model (PSM) is the primary tool used to achieve the aim by accomplishing certain objectives. The study’s findings show that Pakistan has abundant biomass resources for energy production. Canola oil, lea...
As the linkages between extreme weather events, changes in climatic conditions and health impacts in exposed populations become clearer, so does the need for climate-smart decisions aimed at making the public health sector more responsive and resilient. By integrating climate and health information, climate services for health provide robust decisi...
A new cutting-edge lignocellulose fractionation technology for the co-production of glucose, native-like lignin, and furfural was introduced using mannitol (MT)-assisted p-toluenesulfonic acid/pentanol pretreatment, as an eco-friendly process. The addition of optimized 5% MT in pretreatment enhanced the delignification rate by 29% and enlarged the...
Large amounts of agricultural waste, especially marine product waste, are produced annually. These wastes can be used to produce compounds with high-added value. Chitosan is one such valuable product that can be obtained from crustacean wastes. Various biological activities of chitosan and its derivatives, especially antimicrobial, antioxidant, and...
Chitosan is one of the valuable products obtained from crustacean waste. The unique characteristics of chitosan (antimicrobial, antioxidant, anticancer, and anti-inflammatory) have increased its application in various sectors. Besides unique biological properties, chitosan or chitosan-based compounds can stabilize emulsions. Nevertheless, studies h...
Sustainable cement-clay composite is used as the support of bimetallic NieCu/Al2O3 catalysts for hydrogen production frommethanol steamreforming (MSR) reaction. The results
indicate that higher methanol conversion and hydrogen yield can be obtained using composite supported catalysts. The cement-clay composite possesses CO2 absorption capability, w...
Co-pyrolysis of biomass feedstocks with polymeric wastes is a promising strategy for improving the quantity and quality parameters of the resulting liquid fuel. Numerous experimental measurements are typically conducted to find the optimal operating conditions. However, performing co-pyrolysis experiments is highly challenging due to the need for c...
The ideal conditions for anaerobic digestion experiments with biochar addition are challenging to thoroughly study due to different experimental purposes. Therefore, three tree-based machine learning models were developed to depict the intricate connection between biochar properties and anaerobic digestion. For the methane yield and maximum methane...
Microalgae have been promoted as important feedstocks for producing biofuels and bioproducts. However, their production on a large scale would require a large amount of water and nutrients. Considering the importance of food security and the high economic value of microalgal biomass, food and feed applications should be prioritized if microalgae ar...
Dilute acid (DA) pretreatment of biomass generates multiple inhibitory compounds within the pretreatment hydrolysates. These compounds subsequently contribute to the formation of pseudo-lignin on the surfaces of the substrate, consequently...
Biodiesel is a promising substitution for diesel for solving greenhouse gas emissions and traffic-related air pollution. If well-developed, switching to biodiesel can have other socioeconomic advantages, including energy security, job growth, and eco-friendly conversion of used-cooking oil. However, the biodiesel production industry currently has m...
A cost-effective and energy-efficient nitro-humification process (urea pretreatment and ozone plasma oxidation) was developed for nitrogen functionalization and activation of the humic substances (HSs) of lignite. Different nitro-humification metrics, i.e., solubility, physicochemical properties, oxidation degree, nitrogen functionalization, spectr...
Chitosan, an amino polysaccharide mostly derived from crustaceans, has been recently highlighted for its biological activities that depend on its molecular weight (MW), degree of deacetylation (DD), and acetylation pattern (AP). More importantly, for some advanced biomaterials, the homogeneity of the chitosan structure is an important factor in det...