Article
Biotechnology & Applied Microbiology
Eldrin Dlr Arguelles, Milagrosa R. Martinez-Goss
Summary: Lipid-accumulating microalgae, such as Chlorolobion sp. and Chlorella sp., showed increased lipid yield and decreased biomass production under nitrogen-starved culture conditions. The obtained algal biodiesel exhibited high concentrations of saturated and monounsaturated fatty acid methyl esters, making them suitable for biodiesel production. Additionally, the biodiesel properties of the two microalgae met the set specifications of biodiesel standards EN 14214 (European) and ASTM D6751 (American), indicating their potential as raw materials for biodiesel production with superior fuel quality.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Multidisciplinary Sciences
Yoshiaki Maeda, Kahori Watanabe, Marshila Kaha, Yusuke Yabu, Tomoko Yoshino, Mitsufumi Matsumoto, Tsuyoshi Tanaka
Summary: Microalgae, especially marine oleaginous diatom Fistulifera solaris, are promising producers of biofuel due to their high lipid accumulation. In this study, knocking down Tgl1 gene in F. solaris showed positive impacts on cell growth and lipid accumulation, but the effects were not significant in a two-stage growth system. Changes in fatty acid composition were observed, but comprehensive understanding of lipid catabolism is crucial for further improving lipid production.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Hans Christian Correa-Aguado, Gloria Viviana Cerrillo-Rojas, Alejandro Rocha-Uribe, Ruth Elena Soria-Guerra, Jose Francisco Morales-Dominguez
Summary: This study examined the effects of benzyl amino purine (BAP) and gibberellic acid (GA) coupled with nitrogen limitation on Scenedesmus obliquus, and found that these hormones significantly increased biomass and lipid production in the microalgae. This suggests a potential new approach for sustainable biofuel production.
PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Energy & Fuels
Jayati Trivedi, Deepti Agrawal, Neeraj Atray, Anjan Ray
Summary: The present study optimized nitrate concentration in a flat panel photobioreactor to achieve high lipid accumulation of Scenedesmus obliquus CCAP 276/3A and a FAME profile suitable for biodiesel production. The results showed that Scenedesmus obliquus CCAP 276/3A is a suitable feedstock for biodiesel production, and provided important insights into enhancing lipid production in algae.
Article
Agricultural Engineering
Preeti Singh, Dhananjay Kumar
Summary: This study investigated the potential of different cyanobacterial and microalgal strains for biodiesel feedstock production. The ranking of strains was performed using the PROMETHEE software, considering specific growth rate, biomass productivity, and lipid content as important parameters. The study identified Pseudobohlinia sp. and Leptolyngbya foveolarum as the most promising candidates for biodiesel production, with several other strains also showing high potential.
BIOMASS & BIOENERGY
(2022)
Article
Agricultural Engineering
Dong Liang, Jingcheng Wu, Luying Lu, Ronglei Fang, Jingliang Xu, Md. Asraful Alam
Summary: This study presents a facile strategy for lipids extraction using electrocatalytic pretreatment and two-phase partitioning method. The combination of these methods enables efficient recovery of lipids with reduced organic solvent consumption, providing economic and environmental advantages.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Laure Wetterwald, Antoine Leybros, Gatien Fleury, Florian Delrue, Alexandra Dimitriades-Lemaire, Paul Chambonniere, Audrey Hertz
Summary: This study investigates the effects of water content, operating pressure and temperature on supercritical CO2 extraction of lipids from Chlorella vulgaris microalgae. The highest extraction yield was obtained with freeze-dried microalgae at 40℃ and 200 bar. However, extracts obtained at 40℃ and 250 bar had the highest fatty acid content, while those obtained at 60℃ and 250 bar had the highest cetane number and oxidative stability. Water in the initial biomass had a negative impact on total extraction yield, but promoted the extraction of fatty acids, particularly monounsaturated ones.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Plant Sciences
Adeyemi Oladapo Aremu, Lenka Plackova, Samson Olufemi Egbewale, Karel Dolezal, Anathi Magadlela
Summary: Cytokinins play a crucial role in the developmental stages of plants and their content can be influenced by environmental factors. The study found that the concentrations of CKs in legume plants were significantly affected by the soil types and locations they were grown in.
PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS
(2021)
Article
Plant Sciences
Bae Young Choi, Donghwan Shim, Fantao Kong, Pascaline Auroy, Yuree Lee, Yonghua Li-Beisson, Youngsook Lee, Yasuyo Yamaoka
Summary: This study identified MYB1 as a key regulator of lipid metabolism in microalgae under stress conditions. MYB1 promotes lipid accumulation by facilitating fatty acid transport from the chloroplast to the endoplasmic reticulum.
Article
Water Resources
Dimitrios G. Giarikos, Jessica Brown, Reza Razeghifard, Duy Vo, Ammy Castillo, Nikhil Nagabandi, Justin Gaffney, Miriam Zelden, Anna Antakshinova, Sara Rodriguez, Safiyah Muhammad
Summary: Neochloris minuta and Neochloris alveolaris grown in nitrogen-rich and nitrogen-depleted media were tested for their maximum biosorption capacities and adsorption efficiencies for heavy metals. Removal of nitrogen resulted in increased lipid content, decreased protein content, and enhanced metal adsorption capacities. N. alveolaris showed the highest adsorption capacities for all five metals, with the highest adsorption efficiency percentages ranging from 50.61% to 87.10%.
APPLIED WATER SCIENCE
(2021)
Article
Plant Sciences
Zhenqing Bai, Dan Li, Lin Zhu, Xiaoyu Tang, Yanfeng Wang, Renjun Mao, Jiawen Wu
Summary: Nitrate application significantly promotes cadmium accumulation in sweet sorghum compared to ammonium, leading to higher dry weight and Cd concentrations. The effects of nitrate on Cd accumulation and antioxidant capacity under Cd stress are stronger than those of ammonium, indicating that nitrate is more suitable for Cd phytoextraction in sweet sorghum.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Ronald Tarazona Delgado, Mayara dos Santos Guarieiro, Paulo Wagnner Antunes, Servio Tulio Cassini, Haydee Montoya Terreros, Valeria de Oliveira Fernandes
Summary: The study evaluated the effects of nitrogen limitation on the growth and biochemical composition of the green alga Picocystis salinarum, a potential raw material for biodiesel. It found that nitrogen limitation led to a decrease in cell density, dry weight, and chlorophyll content, while increasing carotenoid, lipid, and carbohydrate content. High nitrogen limitation significantly increased total lipid content, making it a suitable candidate for biodiesel production.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Environmental Sciences
Yequan Sheng, Thangavel Mathimani, Kathirvel Brindhadevi, Sakeenabi Basha, Ashraf Elfasakhany, Changlei Xia, Arivalagan Pugazhendhi
Summary: The study investigated the effects of different CO2 concentrations on the growth, lipid content, and fatty acid composition of Chlorella vulgaris. Results showed that higher CO2 levels led to increased biomass yield and lipid content, with 15% CO2 supply resulting in the highest biomass yield and lipid content.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Sivakumar Uthandi, Ashokkumar Kaliyaperumal, Naganandhini Srinivasan, Kiruthika Thangavelu, Iniya Kumar Muniraj, Xinmin Zhan, Nicholas Gathergood, Vijai Kumar Gupta
Summary: Microbial oils offer a potential solution for biodiesel production, with oleaginous microorganisms accumulating high levels of oils in their cells. Using lignocellulosic biomass as a renewable raw material for producing second-generation biodiesel has become a fundamental approach for tackling challenges of higher energy costs, environmental protection, and depletion of crude oil reserves. Research is focused on examining different microbes' lipid accumulation capability using lignocellulosic biomass as substrates and overcoming future challenges in using lignocellulosic biomass for biodiesel production.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Plant Sciences
Lizhu Guo, Huizhen Meng, Ke Teng, Xifeng Fan, Hui Zhang, Wenjun Teng, Yuesen Yue, Juying Wu
Summary: The study demonstrates that supplying nitrate as a nitrogen source significantly promotes growth and nitrogen accumulation in buffalograss seedlings, playing a crucial role in facilitating vegetative propagation. On the other hand, applications of ammonium have detrimental effects on buffalograss seedlings growth, indicating the importance of avoiding nitrogen applications as NH4+-N.
Article
Environmental Sciences
Liqun Jiang, Juan Cheng, Haiyan Pei, Shuo Zhang, Zhigang Yang, Changliang Nie, Lijie Zhang
ENVIRONMENTAL TECHNOLOGY
(2018)
Article
Agricultural Engineering
Haiyan Pei, Zhigang Yang, Changliang Nie, Qingjie Hou, Lijie Zhang, Yuting Wang, Shasha Zhang
BIORESOURCE TECHNOLOGY
(2018)
Article
Biotechnology & Applied Microbiology
Liqun Jiang, Lijie Zhang, Changliang Nie, Haiyan Pei
BIOTECHNOLOGY FOR BIOFUELS
(2018)
Article
Engineering, Environmental
Zhigang Yang, Haiyan Pei, Qingjie Hou, Liqun Jiang, Lijie Zhang, Changliang Nie
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Green & Sustainable Science & Technology
Changliang Nie, Haiyan Pei, Liqun Jiang, Juan Cheng, Fei Han
Article
Biotechnology & Applied Microbiology
Liqun Jiang, Jiongming Sun, Changliang Nie, Yizhen Li, Jackson Jenkins, Haiyan Pei
BIOTECHNOLOGY FOR BIOFUELS
(2019)
Article
Engineering, Environmental
Zhigang Yang, Changliang Nie, Qingjie Hou, Lijie Zhang, Shasha Zhang, Ze Yu, Haiyan Pei
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Environmental
Zhigang Yang, Lijie Zhang, Changliang Nie, Qingjie Hou, Shasha Zhang, Haiyan Pei
Article
Energy & Fuels
Changliang Nie, Liqun Jiang, Qingjie Hou, Zhigang Yang, Ze Yu, Haiyan Pei
Article
Chemistry, Multidisciplinary
Changliang Nie, Liqun Jiang, Ze Yu, Zhigang Yang, Qingjie Hou, Haiyan Pei
JOURNAL OF CHEMISTRY
(2020)
Article
Green & Sustainable Science & Technology
Zhen Xie, Haiyan Pei, Lijie Zhang, Zhigang Yang, Changliang Nie, Qingjie Hou, Ze Yu
Article
Environmental Sciences
Changliang Nie, Xueyun Geng, Huiling Ouyang, Lina Wang, Zongzhen Li, Mingyu Wang, Xiaomin Sun, Yan Wu, Yunhan Qin, Youxin Xu, Xu Tang, Jianmin Chen
Summary: The study reveals that the airborne microbiota in typical vegetable plastic greenhouses in Shandong, China, contains high concentrations of bacteria and fungi. The predominant bacteria species include Ralstonia, Alcanivorax, Pseudomonas, Bacillus, and Acinetobacter, while frequent fungal genera include Botrytis, Alternaria, Fusarium, Sporobolomyces, and Cladosporium. The airborne microbiota is associated with soil microbiota and their functions mainly involve metabolism and neurodegenerative diseases for bacteria, while fungal trophic mode is dominated by Pathotroph-Saprotroph.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Changliang Nie, Xueyun Geng, Runqi Zhang, Lina Wang, Ling Li, Jianmin Chen
Summary: This study investigated the presence of cyanobacteria on the pre-filter of HVAC systems and found that the concentrations were highest in autumn and significantly higher compared to winter and summer. The airborne transportation of aquatic and terrestrial cyanobacteria contributed to their presence on the pre-filter. The dominant cyanobacteria families identified were Chroococcidiopsaceae, norank_cyanobacteriales, Nostocaceae, and Paraspirulinaceae. Some detected genera, such as Nodularia sp., Pseudanabaena sp., and Leptolyngbya sp., potentially produced cyanobacterial toxins that could pose a threat to human health. This study provides new insights into the distribution of cyanobacteria outside of aquatic habitats.
Article
Agricultural Engineering
Ze Yu, Haiyan Pei, Yizhen Li, Zhigang Yang, Zhen Xie, Qingjie Hou, Changliang Nie
BIORESOURCE TECHNOLOGY
(2020)
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)