Review
Agricultural Engineering
Shinyoung Oh, Jechan Lee, Su Shiung Lam, Eilhann E. Kwon, Jeong-Myeong Ha, Daniel C. W. Tsang, Yong Sik Ok, Wei-Hsin Chen, Young-Kwon Park
Summary: Recent studies have shown that fast hydropyrolysis is a promising technology for converting biomass into liquid fuels, producing more aromatic hydrocarbons and reducing the oxygen content of bio-oil. Current research focuses on both non-catalytic and catalytic fast hydropyrolysis processes, as well as efforts to combine fast hydropyrolysis with hydrotreatment processes. Future research directions and challenges in fast hydropyrolysis are also discussed.
BIORESOURCE TECHNOLOGY
(2021)
Article
Thermodynamics
Vladimir Heredia, Jack Legrand, Jeremy Pruvost
Summary: Current microalgae biofuel production pathways face energy self-sufficiency challenges, particularly in cultivation and metabolite recovery processes. Various technologies, such as intensified photobioreactors, photovoltaic panels, and solvent-free metabolite recovery processes, have been suggested to improve the net energy ratio. Additionally, an energy-driven biorefinery approach can obtain liquid fuels and photovoltaic energy in the same production process, increasing the final volume of biofuels and net energy ratio.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
R. Reshmy, T. A. P. Paulose, Eapen Philip, Deepa Thomas, Aravind Madhavan, Ranjna Sirohi, Parameswaran Binod, Mukesh Kumar Awasthi, Ashok Pandey, Raveendran Sindhu
Summary: Bio-based fuels and value-added materials are gaining attention as an alternative to petroleum derived fuels and chemicals. Cellulosic biorefinery offers a cost-effective way to produce a wide range of platform chemicals, biofuels, and other biomaterials using abundant lignocellulosic raw materials. Despite challenges, integrating novel technologies is essential for optimizing processing and enhancing the quality of products.
Article
Thermodynamics
Yingdong Zhou, Javier Remon, Jesus Gracia, Zhicheng Jiang, Jose Luis Pinilla, Changwei Hu, Isabel Suelves
Summary: This study explores the use of "sea-thermal" treatment of the microalgae Chlorella Vulgaris to produce energy-dense biofuels and value-added liquid products. The processing conditions and reaction medium were found to significantly affect the yields and properties of the products. Low temperatures and short reaction times favored the formation of biocrude, while high temperatures and prolonged processing times promoted the repolymerization of the biocrude to hydrochar. The salinity of the seawater also played a role in these transformations.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Microbiology
Valentina Ambrogi, Francesca Bottacini, John O'Callaghan, Eoghan Casey, Justin van Breen, Barry Schoemaker, Linqiu Cao, Bas Kuipers, Mary O'Connell Motherway, Margriet Schoterman, Douwe van Sinderen
Summary: This study further characterized seven bifidobacterial beta-galactosidases, finding that they all possess transgalactosylation activity but differ in efficiency. Chromatography analysis showed that these enzymes generate two distinct GOS mixtures with varying degrees of polymerization. These findings may pave the way for future studies in synthesizing new GOS variants with enhanced prebiotic activities.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Agricultural Engineering
Nisha Singh, Reeta Rani Singhania, Poonam S. Nigam, Cheng-Di Dong, Anil Kumar Patel, Munish Puri
Summary: The bioprocessing of lignocellulosic biomass to produce bio-based products is gaining global attention under biorefinery setup. However, the commercial success at industrial scale is still inadequate due to irregular biomass supply chain, market uncertainties, and scale-up challenges. Global research efforts by public and private sectors are underway to achieve deeper market penetration for the commercial success of lignocellulosic biorefineries.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
K. D. Gonzalez-Gloria, Rosa M. Rodriguez-Jasso, Gilver Rosero-Chasoy, Shiva, Emily T. Kostas, E. Aparicio, Arturo Sanchez, Iosvany Lopez-Sandin, Hector A. Ruiz
Summary: Hydrothermal processes were used to treat Sargassum spp. biomass under different conditions, achieving a conversion yield of 99.91%. The enzymatic hydrolysis was scaled up in a stirred bioreactor, resulting in a saccharification yield of 95.92%. The simultaneous saccharification and fermentation strategy yielded ethanol yields of 57.69% in a continuous stirred tank bioreactor and 71.37% in a bubble column reactor. The bioreactor enzymatic hydrolysis process showed the best energy efficiency at 30.19 (gsugar/MJ). This study establishes the conditions for a third-generation biorefinery using Sargassum biomass in a circular bioeconomy.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Gustavo Amaro Bittencourt, Luciana Porto de Souza Vandenberghe, Kim Valladares-Diestra, Leonardo Wedderhoff Herrmann, Ariane Fatima Murawski de Mello, Zulma Sarmiento Vasquez, Susan Grace Karp, Carlos Ricardo Soccol
Summary: Soybean hulls, as a byproduct of soybean processing, have a wide range of potential uses and are worth further research and exploration. Numerous studies have shown that soybean hulls can be utilized to produce various high value-added molecules, with potential applications in multiple sectors.
BIORESOURCE TECHNOLOGY
(2021)
Review
Agricultural Engineering
Yuwen Zhou, Vinay Kumar, Sharareh Harirchi, V. S. Vigneswaran, Karthik Rajendran, Pooja Sharma, Yen Wah Tong, Parameswaran Binod, Raveendran Sindhu, Surendra Sarsaiya, Deepanraj Balakrishnan, M. Mofijur, Zengqiang Zhang, Mohammad J. Taherzadeh, Mukesh Kumar Awasthi
Summary: This review provides an overview of advanced technologies for the valorization of solid waste and the generation of various bio-products, including the utilization of microbial fermentation techniques for waste biorefinery processes and the utilization of C1 and C2 gases generated from different industries by various microbes to control global warming.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Dendera Munguia-Aguilar, Hector A. Ruiz, Elias Razo-Flores, Cesar Nieto-Delgado, Edith Cadena-Chamorro, Felipe Alatriste-Mondragon
Summary: The efficiency of enzymatic saccharification of lignocellulosic biomass can be improved by a sequential process of hydrothermal pretreatment followed by enzymatic hydrolysis, resulting in higher release of sugars and methane production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Neha Arora, Shweta Tripathi, Krishna Mohan Poluri
Summary: This study reveals the adaptive response of a halotolerant microalga to salinity and arsenic toxicity. The microalga efficiently removed 75-89% of arsenic from artificial seawater by modifying its cell size. Despite the inhibition of growth and photosynthetic activity, the cells maintained the proportion of lipids through remodeling of biochemical pools. Increased levels of superoxide dismutase, glutathione, and glutathione reductase aided the stress adaptation of the cells under the combined toxicity of salinity and arsenic. Additionally, the cells grown in arsenic-spiked artificial seawater media improved the oxidative stability and cetane number of the derived fuel. This research provides insights into the potential use of halotolerant microalgae for arsenic remediation, green fuel production, and desalination of seawater for municipal usage.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Michael Kavalopoulos, Vasileia Stoumpou, Andreas Christofi, Sofia Mai, Elli Maria Barampouti, Konstantinos Moustakas, Dimitris Malamis, Maria Loizidou
Summary: This study investigated valorisation pathways of brewers' spent grains (BSG) towards biofuels production under the biorefinery concept using experimental data. The recovery and utilization of used oil, bioethanol and biogas from BSG were thoroughly studied and optimized, leading to the establishment of three biorefinery scenarios capable of producing biodiesel, bioethanol and/or biogas. Material flow diagrams were utilized to evaluate these schemes, and it was found that BSG could significantly contribute to the biofuel energy strategy if fully valorized.
ENVIRONMENTAL POLLUTION
(2021)
Article
Energy & Fuels
Marcela Sofia Pino, Michele Michelin, Rosa M. Rodriguez-Jasso, Alfredo Oliva-Taravilla, Jose A. Teixeira, Hector A. Ruiz
Summary: This study investigated the enhancement of enzymatic saccharification of hydrothermally pretreated agave bagasse using non-ionic surfactants, and found that the addition of PEG 400 as an additive led to the highest enhancement in the conversion yield of cellulose to glucose.
Article
Green & Sustainable Science & Technology
Esmaeil Kouhgardi, Sohrab Zendehboudi, Omid Mohammadzadeh, Ali Lohi, Ioannis Chatzis
Summary: Brown algae have attracted attention as a potential energy source due to their ability to adsorb CO2 and store carbon. This review paper discusses the cultivation and biorefinery process of brown algae, and examines the opportunities, challenges, and future prospects of brown algae-based biofuels in North America. The analysis suggests that biomass-derived fuels, including brown algae biofuels, will play a significant role in the transportation sector. However, the commercial cultivation of brown algae and meeting market demands remain the main challenges for the algal biofuels industry. Expanding the value chain of brown algae biorefinery by producing advanced biofuels and value-added by-products could have a significant impact on North American countries' GDP.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Agricultural Engineering
Shraddha Chavan, Bhoomika Yadav, Anusha Atmakuri, R. D. Tyagi, Jonathan W. C. Wong, Patrick Drogui
Summary: Rapid urbanization has led to an increased demand for food, feed, and chemicals, resulting in higher use of fossil resources and organic waste generation. Valorization of organic waste, due to its high abundance, renewability, and ease of accessibility, offers a potential solution to waste management issues. Utilization of industrial wastes rich in organic and nutrient content for producing value-added products like biofuels and bioplastics via microbial fermentation processes is a promising approach to sustainable waste management.
BIORESOURCE TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
G. S. Anisha, Rojan P. John, P. Prema, Ashok Pandey
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2010)
Article
Agricultural Engineering
G. S. Anisha, P. Prema
BIORESOURCE TECHNOLOGY
(2008)
Article
Agricultural Engineering
Rojan P. John, G. S. Anisha, K. Madhavan Nampoothiri, Ashok Pandey
BIORESOURCE TECHNOLOGY
(2011)
Review
Biotechnology & Applied Microbiology
Rojan P. John, G. S. Anisha, K. Madhavan Nampoothiri, Ashok Pandey
BIOTECHNOLOGY ADVANCES
(2009)
Article
Chemistry, Applied
G. S. Anisha, Rojan P. John, P. Prema
Article
Microbiology
K. N. Niladevi, Rajeev K. Sukumaran, Nicemol Jacob, G. S. Anisha, P. Prema
MICROBIOLOGICAL RESEARCH
(2009)
Article
Biochemistry & Molecular Biology
G. S. Anisha, Rojan P. John, P. Prema
PROCESS BIOCHEMISTRY
(2009)
Review
Biochemistry & Molecular Biology
Grace Sathyanesan Anisha
Summary: alpha-Galactosidases have diverse therapeutic applications in human medicine and are also used in various industrial sectors. Research efforts aim to identify novel alpha-galactosidases with improved catalytic efficiency.
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY
(2023)
Review
Biotechnology & Applied Microbiology
Grace Sathyanesan Anisha
Summary: This review focuses on the molecular advances in the overexpression of alpha-galactosidases in bacterial and yeast/fungal expression systems. Recombinant alpha-galactosidases have improved biochemical and hydrolytic properties compared to their native counterparts.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2022)
Review
Environmental Sciences
Cheng-Di Dong, Ashutosh Tiwari, Grace Sathyanesan Anisha, Chiu-Wen Chen, Anusuiya Singh, Dibyajyoti Haldar, Anil Kumar Patel, Reeta Rani Singhania
Summary: In the process of urbanization, anthropogenic activities, industrialization, and economic growth have led to waste management problems, disposal issues, and the emergence of pollutants. To maintain a sustainable environment, bioremediation using microorganisms or enzymes is a promising solution. Laccase, an oxidoreductase enzyme produced by microorganisms, has shown great potential in degrading chemical pollutants. However, challenges such as immobilization and engineering of robust laccase need to be addressed for large-scale application in waste treatment and emerging pollutant degradation.
ENVIRONMENTAL POLLUTION
(2023)
Review
Agricultural Engineering
Dibyajyoti Haldar, Neelanjan Bhattacharjee, Asma Musfira Shabbirahmed, Grace Sathyanesan Anisha, Anil Kumar Patel, Jo-Shu Chang, Cheng-Di Dong, Reeta Rani Singhania
Summary: This article summarizes recent research on the purification of biogas, discussing methods to improve its quality and reduce CO2 emissions, as well as the use of sustainable materials for gas purification. The article also reviews different gas purification technologies such as water scrubbing, adsorption, cryogenic separation, and biological upgrading, and summarizes numerical models used for predicting biogas upgrading. Finally, the article highlights existing bottlenecks and recommends further research directions.
BIOMASS & BIOENERGY
(2023)
Article
Veterinary Sciences
Tessy Augustianath, D. A. Evans, G. S. Anisha
Summary: The study aimed to investigate the effects of RF-EMR on the embryonic development of organisms using chick embryos as a model. Fertilized eggs were incubated and exposed to RF-EMR from 2G and 4G mobile phones. The results showed that RF-EMR caused teratogenic changes in the morphology of chick embryos, including cross beak, non-retracted yolk sac, macrocephaly, malformed legs and toes, disability in standing and balancing, and variations in body weight, body length, and beak length.
RESEARCH IN VETERINARY SCIENCE
(2023)
Review
Biotechnology & Applied Microbiology
Pitchurajan Krishna Perumal, Cheng-Di Dong, Ajeet Singh Chauhan, Grace Sathyanesan Anisha, Mohammad Sibtain Kadri, Chiu-Wen Chen, Reeta Rani Singhania, Anil Kumar Patel
Summary: In recent years, algal-derived glycans and oligosaccharides have gained importance in health applications due to their higher bioactivities compared to plant-derived oligosaccharides. Marine organisms have complex and highly branched glycans with more reactive groups, which lead to greater bioactivities. However, their complex and large molecules limit their broad commercial applications due to dissolution limitations. On the other hand, oligosaccharides have better solubility and retain their bioactivities, offering better opportunities for applications. Efforts are being made to develop a cost-effective method for enzymatic extraction of oligosaccharides from algal polysaccharides and biomass, and detailed structural characterization of algal derived glycans is required for improved bioactivity and commercial applications. Some macroalgae and microalgae are being evaluated as in vivo biofactories in clinical trials, providing insights into therapeutic responses. This review discusses recent advancements, bottlenecks, technological limitations, and potential solutions in the production of oligosaccharides from microalgae. It also highlights the emerging bioactivities of algal oligosaccharides and their promising potential for biotherapeutic applications.
BIOTECHNOLOGY ADVANCES
(2023)
Review
Biotechnology & Applied Microbiology
Grace Sathyanesan Anisha, Savitha Padmakumari, Anil Kumar Patel, Ashok Pandey, Reeta Rani Singhania
Summary: This review focuses on the structure, chemical composition, and physicochemical properties of fucoidan, a sulfated heteropolysaccharide produced by brown algae. It also discusses the biological actions of fucoidan and its applications in human health, tissue engineering, regenerative medicine, and drug delivery. Additionally, the industrial prospects and research development are highlighted to explore the commercial viability and sustainability of fucoidan as a bioactive material in the nutritional and pharmacological sectors.
BIOENGINEERING-BASEL
(2022)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
