Article
Green & Sustainable Science & Technology
Vikas Kumar, Brandon Kieft, Parmila Devi, Steven J. Hallam, Cigdem Eskicioglu
Summary: This study investigated the effects of two-step activated carbon cloth on syntrophic microbial associations during anaerobic digestion of municipal sludge. The results showed that activated carbon cloth enhanced methane yield and reduced the lag phase, attributed to its increased electron transfer and methane production kinetics. Additionally, activated carbon cloth promoted the adherence of methane-producing microorganisms, providing a stable environment for syntrophic energy metabolism.
Review
Green & Sustainable Science & Technology
Qianqian Zhang, Yu Yang, Li-an Hou, Hongtao Zhu, Yaobin Zhang, Jian Pu, Yuyou Li
Summary: Anaerobic digestion (AD) is a crucial technology for the treatment of organic wastes, but there are still challenges such as low digestibility and slow reaction kinetics in practical implementation, limiting bio-product production. Carbon-based additives (CAs), particularly biochar and activated carbon (AC), have shown great potential in enhancing AD performance by facilitating direct interspecies electron transfer (DIET) and adjusting microorganisms. In this review, the research advancements in the use of CAs in AD systems are comprehensively summarized, covering the construction of CAs, their macro-behaviors, micro-mechanisms, and hybrid strategies. Furthermore, future modifications and applications of CAs in AD systems are discussed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Biotechnology & Applied Microbiology
Liu Cao, Chris D. Cox, Qiang He
Summary: This study identified the important role of Syntrophobacter in syntrophic propionate conversion, while the methanogen partners lacked consistency. Propionate conversion was mainly achieved through the transformation of propionate into acetate and hydrogen.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Mathematics, Applied
Radhouane Fekih-Salem, Yessmine Daoud, Nahla Abdellatif, Tewfik Sari
Summary: This study provides a comprehensive analysis of a syntrophic model by considering the effects of syntrophy relationship, mortality, substrate inhibition, and input concentrations. The model involving mortality poses a difficult problem and exhibits a rich behavior with coexistence of two microbial species, bistability, and multiplicity of coexistence steady states. Including substrate inhibition can destabilize a two-tiered microbial food chain, affecting the system's asymptotic behavior depending on the initial conditions.
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
(2021)
Article
Engineering, Environmental
Shilei Wang, Zhi Wang, Muhammad Usman, Zehui Zheng, Xiaoling Zhao, Xingyao Meng, Kai Hu, Xia Shen, Xiaofen Wang, Yafan Cai
Summary: Ammonia inhibition is a challenge in anaerobic digestion of nitrogen-rich substrates, but bioaugmentation with specific microbial consortia can restore digestion performance. In this study, two microbial consortia were obtained and applied to a nitrogen-rich AD system, resulting in restoration of performance within 21 days and 83 days, respectively. Methanogenic archaea played a crucial role in the recovery process, and both consortia enhanced the hydrogenotrophic pathway.
Article
Engineering, Environmental
Ligong Wang, Hongyan Zhang, Zhuangqiang Dai, Yi Liu, Chang Chen, Guangqing Liu
Summary: The study demonstrated that a nicotine concentration higher than 4% can inhibit anaerobic digestion, but the nicotine content in tobacco stalks is lower than this inhibitory level. Co-digestion of pretreated tobacco stalks and pig manure showed the highest methane production and exhibited a synergistic effect.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Energy & Fuels
Andreia D. Santos, Joao R. Silva, Luis M. Castro, Rosa M. Quinta-Ferreira
Summary: This study evaluates the methane production potential of pig slurry anaerobic digestion using two different substrate to inoculum ratios (SIR 0.65 and 1) and compares it with theoretical predictions. The results show that a higher SIR of 1 produced more biogas with higher methane content compared to a lower SIR of 0.65, with an SMP of 0.568 NL CH4/g VS and an average methane content of 83% achieved in the experiment. The estimated value presented a deviation of just 2.96% during the assay with a SIR of 1.
Article
Engineering, Chemical
Tianwei Hao, Zheng Liu, Muxiang Liang, Xiaoming Liu, Jing Chen, Xiaohui Wu, Sunita Varjani, Feixiang Zan
Summary: This study demonstrates the significant impact of sulfite pretreatment on the solubilization and substrate release of PS, as well as the reduction of methane production from PS. Additionally, sulfite pretreatment affects the functional groups and degradation extent of PS.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Georgios Manthos, Margarita Dareioti, Dimitris Zagklis, Michael Kornaros
Summary: This study aimed to mathematically model anaerobic digestion in batch systems to analyze the potential synergies between complementary substrates. The results showed that a mixture ratio of 70:30 for olive mill wastewater and liquid cow manure achieved a maximum net profit of 16 euro/m3reactor/d, ensuring the sustainability of the process.
Article
Microbiology
Sotirios D. Kalamaras, Maria Lida Christou, Christos A. Tzenos, Sotirios Vasileiadis, Dimitrios G. Karpouzas, Thomas A. Kotsopoulos
Summary: This study investigated the role of the bioaugmented critical biomass in addressing ammonia inhibition in anaerobic reactors used for biogas production. It was found that injecting a volume equal to 65.62% of the total working reactor volume resulted in the best methane production. The dominant microbial member in all reactors was Methanosaeta.
Article
Green & Sustainable Science & Technology
W. O. Meneses-Quelal, B. Velazquez-Marti, J. Gaibor-Chavez, Z. Nino-Ruiz
Summary: This study evaluated the anaerobic digestion of agricultural waste, manure, and slaughterhouse residues from species typical of the Andes region, such as llama, vicuna, and guinea pig; quinoa, amaranth, and wheat straw. The highest methane production rates were achieved for flame manure and quinoa straw at an RSI of 1:2, with significant increases compared to an RSI of 1:1. The modified Gompertz model proved to be the best fit for performance analysis, with a constant difference of 7.06% between experimental and predicted values.
Article
Agricultural Engineering
Zahra Al Hasani, Jagdeep Kumar Nayak, Halima Alhimali, Abdullah Al-Mamun
Summary: The study found that the use of conductive additive GAC/nZVI in anaerobic digestion process can significantly increase the biogas production and methane generation, as well as improve the removal rate of COD.
BIORESOURCE TECHNOLOGY
(2022)
Article
Thermodynamics
Archana Kasinath, Hubert Bylinski, Wojciech Artichowicz, Anna Remiszewska-Skwarek, Malgorzata Szopinska, Ewa Zaborowska, Aneta Luczkiewicz, Sylwia Fudala-Ksiazek
Summary: This study investigated the effect of low-temperature pretreatment on the efficiency of anaerobic digestion of waste activated sludge (WAS). The results showed that low-temperature pretreatment increased methane production and improved energy performance. AD of pretreated WAS achieved a positive net energy balance.
Article
Agricultural Engineering
Mirco Garuti, Erika Sinisgalli, Mariangela Soldano, Antonia Jimenez Rodriguez, Fernando G. Fermoso
Summary: Agricultural biogas plants should aim for high biological efficiency by quickly converting organic feedstocks to minimize residual methane potential. Optimal biochemical conditions can enhance microorganism activity and improve process performance.
BIOMASS & BIOENERGY
(2023)
Article
Engineering, Environmental
Yanan Yue, Junyu Wang, Xiayuan Wu, Jianfeng Zhang, Zhongbing Chen, Xuejing Kang, Zuopeng Lv
Summary: The study investigated the impact of acetate and propionate accumulation on anaerobic syntrophy during methane formation. Results showed that increased acetate and propionate concentrations had a negative effect on biogas production, but stable hydrogenotrophic methanogens and syntrophic acetate/propionate oxidizing bacteria maintained stable methane formation. The study provides insights into anaerobic syntrophy and changes in synergistic relationships, contributing to the stability of biogas reactors.
Review
Engineering, Chemical
Himanshi Singh, Kunwar Paritosh, Vivekanand Vivekanand, Nidhi Pareek
Summary: Microorganism-assisted biohydrogen is a promising alternative to fossil-based fuels, capable of reducing greenhouse gas emissions and addressing environmental issues. This review focuses on model organisms and metabolic pathways involved in microorganism-assisted biohydrogen production.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Twinkle Soni, Mengchuan Zhuang, Manish Kumar, Venkatesh Balan, Bryan Ubanwa, Vivekanand Vivekanand, Nidhi Pareek
Summary: This article reviews the chitin and chitosan-degrading enzymes found in various organisms and the expression systems widely used to produce glucosamine. It also discusses new developments and methods, such as genetic and metabolic engineering, to produce high titers of glucosamine. Other sources of glucosamine production, such as starch and inorganic ammonia, are also discussed. Furthermore, the conversion of glucosamine to fuels and chemicals using catalytic and biochemical conversion methods is examined.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Yuzhou Lan, Aakash Chawade, Ramune Kuktaite, Eva Johansson
Summary: The study found that old Swedish wheat lines and wheat-rye introgressions had better early root vigor, while 3R genotypes had higher yield under early drought stress. Root biomass, grains, and spikes per plant were key factors for early drought tolerance, while 1000-grain weight and flag-leaf area were key factors for late drought tolerance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
Shivangi Shah, Dinabandhu Sahoo, Girish Mishra
Summary: The selection of an appropriate strain is crucial for algae-based oil industries. In this study, a novel microalgal strain, Desmodesmus sp. DLK, rich in omega-3 fatty acids, was identified as a potential biofuel feedstock based on its fatty acid profile and enhanced lipid productivity when grown with different carbon sources. The study also showed that supplementing with glucose and glycerol significantly increased biomass and lipid production of DLK. Fatty acid analysis revealed that DLK has desirable properties for biofuel production.
Article
Biochemistry & Molecular Biology
Manisha Sharma, Manju Chaudhary, Soom Nath Raina, Dinabandhu Sahoo, Neel Sarovar Bhavesh, Rakesh Kr Thakur, Vijay Rani Rajpal, Dhananjay Raturi, Apekshita Singh
Summary: This research analyzed the genetic diversity and population structure of black rice cultivars in Manipur, North East India, which has distinct geographical and agroclimatic variations. The results showed that the black rice cultivars in Manipur formed two main groups, with the hill black rice cultivars being more diverse. The population structure analysis revealed seven subpopulations, indicating high genetic variability. Some diverse black rice cultivars, such as Amubi, Chedo Anal, and Chipi Buh, were identified and can be used in future black rice breeding programs to prevent genetic erosion and protect intellectual property rights.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Plant Sciences
Vishnukiran Thuraga, Ulrika Dyrlund Martinsson, Ramesh R. R. Vetukuri, Aakash Chawade
Summary: This study evaluated the grain yield of different sets of spring barley genotypes under two treatments (no treatment and fungicide treatment) using AMMI, GGE biplot, and stability analysis. The results showed that the environment was the main factor contributing to grain yield variation, followed by genotype X environment interaction and genotypic effects. Utilizing the stable yielding genotypes and representative environments identified in this study could assist in breeding for improved grain yield in spring barley genotypes.
Review
Neurosciences
Shikha Kushwah, Neha Shree Maurya, Sandeep Kushwaha, Luciana Scotti, Aakash Chawade, Ashutosh Mani
Summary: Alzheimer's disease is a chronic neurodegenerative disease characterized by the formation of amyloid-beta plaques and neurofibrillary tangles in the brain. Current drugs have not been able to completely cure the disease due to its complex etiology. Traditional herbs and formulations from the Indian ayurvedic system are rich sources of compounds with antioxidant, anti-amyloidogenic, neuroprotective, and anti-inflammatory properties, which can improve cognitive memory and brain functioning. Combining traditional herbal knowledge with modern science may lead to the discovery of new therapeutic leads for Alzheimer's disease.
CURRENT NEUROPHARMACOLOGY
(2023)
Article
Multidisciplinary Sciences
Ajit Nehe, Ulrika Dyrlund Martinsson, Eva Johansson, Aakash Chawade
Summary: This study examined the impact of climate change on spring wheat yield in Scandinavia, finding that the environment has the strongest effect on grain yield, followed by genotype and fungicide treatment. The best performing genotypes for disease tolerance and high yield were KWS Alderon, SEC 526-07-2, and WPB 13SW976-01.
Article
Agronomy
Admas Alemu, Lorena Batista, Pawan K. Singh, Alf Ceplitis, Aakash Chawade
Summary: LD-based haplotyping with subsequent SNP tagging improved the genomic prediction accuracy for Fusarium head blight resistance and spike width. The study showed that pre-selecting SNPs can enhance the prediction accuracy and reduce genotyping costs in genomic selection.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Multidisciplinary Sciences
Neha Shree Maurya, Shikha Kushwah, Sandeep Kushwaha, Aakash Chawade, Ashutosh Mani
Summary: By analyzing CRC mRNA gene expression datasets and using ML-based classification models, GLP2R and VSTM2A genes were identified as important factors in CRC progression and immune response suppression.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Sbatie Lama, Fernanda Leiva, Pernilla Vallenback, Aakash Chawade, Ramune Kuktaite
Summary: This study evaluated the impact of drought and heat stresses on the phenotypic and gluten protein characteristics of eight spring wheat genotypes. The results showed that combined heat-drought stress had the most severe negative effects on biomass, grain yield, and thousand kernel weight, but a positive effect on most gluten parameters. The best performing genotypes in terms of stability were identified as potential breeding materials for developing climate-resistant wheat genotypes with improved bread-making quality.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Energy & Fuels
Manish Meena, Hrishikesh Kumar, Nitin Dutt Chaturvedi, Andrey A. Kovalev, Vadim Bolshev, Dmitriy A. Kovalev, Prakash Kumar Sarangi, Aakash Chawade, Manish Singh Rajput, Vivekanand Vivekanand, Vladimir Panchenko
Summary: This study outlines the solutions to overcome challenges in modeling approaches for gasification technology, highlighting the essential role of machine learning methods as an intelligent retrieval tool. The study summarizes the application of various machine learning algorithms and evaluates their performance in gasification technologies.
Article
Biotechnology & Applied Microbiology
James Pierson, Gopi Raju Makkena, Sandeep Kumar, Vinod Kumar, Vivekanand Vivekanand, Hasan Husain, Muhammad Ayser, Venkatesh Balan
Summary: In this study, different case studies were conducted to estimate the annual volume of algal biomass that could be produced using the rotating algal biofilm method in three large-scale water resource recovery facilities in Texas. The total amount of biomolecules that could be fractionated from the algal biomass was calculated, and these biomolecules were converted into commodity products using reported methods and yields.
FERMENTATION-BASEL
(2023)
Review
Biotechnology & Applied Microbiology
Apoorva Upadhyay, Andrey A. A. Kovalev, Elena A. A. Zhuravleva, Dmitriy A. A. Kovalev, Yuriy V. V. Litti, Shyam Kumar Masakapalli, Nidhi Pareek, Vivekanand Vivekanand
Summary: Biogas production involves complex microbial populations in anaerobic digesters. Understanding these microbial populations through metagenomics analysis can help optimize and enhance anaerobic digestion processes. With advancements in metagenomic sequencing technologies, such as next generation sequencing and high-throughput sequencing, the study of microbial dynamics in anaerobic digestion has been revolutionized. This review provides an overview of the basic processes of metagenomics research, and discusses various bioinformatics approaches for analyzing microbial communities and characterizing metagenomes.
FERMENTATION-BASEL
(2023)
