Article
Biotechnology & Applied Microbiology
Sunisa Pansook, Aran Incharoensakdi, Saranya Phunpruch
Summary: This study demonstrates the potential of simazine for enhancing dark fermentative H-2 production by A. halophytica.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Agricultural Engineering
Nattanon Chinchusak, Aran Incharoensakdi, Saranya Phunpruch
Summary: Research showed that the addition of glucose in the culture medium significantly increased H2 production by Aphanothece halophytica, and the inclusion of reducing agents such as sodium sulfide further enhanced H2 production.
BIOMASS & BIOENERGY
(2022)
Article
Biotechnology & Applied Microbiology
Nattanon Chinchusak, Aran Incharoensakdi, Saranya Phunpruch
Summary: The study aimed to enhance hydrogen (H2) production by the halotolerant cyanobacterium Aphanothece halophytica through nutrient deprivation. Nitrogen and potassium deprivation induced dark fermentative H2 production, while sulfur and phosphorus deprivation had no effect. Deprivation of nitrogen and potassium resulted in the highest H2 production due to the stimulation of hydrogenase activity and the activation of glycogen biosynthesis genes.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Energy & Fuels
L. R. Monisha Miriam, Ajith J. Kings, R. Edwin Raj, K. Prakash Shyam, M. Adhi Viswanathan
Summary: This study optimized the mass cultivation of halophilic microalgae Aphanothece halophytica in raceway ponds using organic and inorganic nutrients. The biomass was successfully harvested using an organic flocculant and the oil was extracted using a solvent method. Gas chromatography-mass spectrometry analysis was performed to determine the optimal combination of fatty acids for enhancing biofuel production.
BIOENERGY RESEARCH
(2023)
Article
Food Science & Technology
Jordan A. Facey, Jake P. Violi, Josh J. King, Chowdhury Sarowar, Simon C. Apte, Simon M. Mitrovic
Summary: Microcystis aeruginosa, a widespread cyanobacteria, exhibits growth limitation when iron, cobalt, and manganese are excluded from the growth media. Intracellular iron concentrations are notably higher in treatments grown in cobalt-deplete media compared to other treatments.
Article
Marine & Freshwater Biology
Jacob A. Cianci-Gaskill, Katrina K. Knott, Rebecca O'Hearn, Alba Argerich, Darby Niswonger, Jeff Wenzel, Joanna B. Whittier, Rebecca L. North
Summary: This study investigates the accumulation of microcystin in bluegill and largemouth bass from an agricultural reservoir in the North American Great Plains. The results show that bluegill has significantly higher microcystin levels than largemouth bass. Harvest date and water microcystin concentrations are identified as important factors influencing the accumulation of microcystin in fish tissues.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Sijia Hua, Jiawen Chen, Liang Wu, Xinyue Yu, Jing Ye, Yuanting Li, Yongqiang Zhu, Fuxiang Tian
Summary: This study detected the contents of MC-LR in Microcystis aeruginosa cultures and water samples from the Huangpu River using ELISA and HPLC methods. The results showed that ELISA was a reliable and simple method for monitoring low levels of MC-LR. The concentration of MC-LR in the Huangpu River varied with the season, but remained below the WHO drinking water quality standard.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Carolina Acuna-Alonso, Xana Alvarez, Olalla Lorenzo, Angeles Cancela, Enrique Valero, Angel Sanchez
Summary: Blooms of microalgae and cyanobacteria are increasing annually, posing significant environmental concerns. Harvesting these microalgae is crucial for water governance without releasing toxins. Among the three methods studied, electroflocculation showed the highest efficiency. However, post-harvesting toxicity levels may be affected by chlorophyll interference, requiring further research.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Di Wu, Ting Wang, Jing Wang, Lijuan Jiang, Ying Yin, Hongyan Guo
Summary: The study reveals that 1 μm polystyrene microplastics have a greater impact on freshwater cyanobacteria compared to 100 nm microplastics, promoting algal growth and inhibiting photosynthesis. Additionally, 1 μm microplastics increase intracellular microcystins content and inhibit their release, while 100 nm microplastics only promote microcystin production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Microbiology
Zoran Marinovic, Nada Tokodi, Damjana Drobac Backovic, Ilija Scekic, Nevena Kitanovic, Snezana B. Simic, Nevena B. Dordevic, Arpad Ferincz, Adam Staszny, Tamara Dulic, Jussi Meriluoto, Bela Urbanyi, Jelena Lujic, Zorica Svircev
Summary: Lake Balaton, the largest shallow lake in Central Europe, is affected by the Zala River. The Kis-Balaton Water Protection System (KBWPS) was constructed to improve water quality, but toxic cyanobacterial blooms were still observed. The KBWPS acts as a significant buffering zone, protecting the water quality of Lake Balaton. Regular monitoring of cyanobacteria and cyanotoxins in this ecosystem is crucial.
Article
Environmental Sciences
Franziska Bauer, Immanuel Wolfschlaeger, Juergen Geist, Jutta Fastner, Carina Wiena Schmalz, Uta Raeder
Summary: This study analyzed the benthic and planktic forms of cyanobacterial communities in 34 lakes in Germany. It found that 35% of the lakes had benthic mats consisting mainly of Nostocales and Oscillatoriales. The most abundant cyanotoxin in benthic samples was Anatoxin, while microcystin was predominant in open-water samples. These findings suggest the need to strengthen monitoring of benthic cyanobacteria and their toxins.
Article
Environmental Sciences
Wenjing Wang, Yanqing Sheng, Ming Jiang
Summary: The study observed a decrease in the relative abundance of Microcystis with increasing salinity in a coastal river environment. Salinity was found to influence the growth, metabolism, and toxin production of Microcystis, potentially increasing the risk of microcystin exposure in coastal rivers during cyanobacterial blooms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Weijun Song, Weixuan Wang, Donghua Qiu, Wenzhen Zheng, Xi Li
Summary: This study assessed the microcystin risk of a toxic bloom using biochemical and molecular techniques. The results showed that ELISA and HPLC can accurately quantify microcystin concentrations and assess the risk. However, direct ELISA underestimated the risk at the development stage, and the reliability of DNA-based qPCR was affected by biomass. RNA-based qPCR could be a promising tool for early-warning and real-time assessments of microcystin risk.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Ecology
Alexander Hegg, Reinder Radersma, Tobias Uller
Summary: This study investigated the seasonal changes and the effects of microcystin-producing cyanobacteria on the reproduction and survival of Daphnia longispina individuals in five eutrophic lakes in southern Sweden. The results showed that the concentration of microcystin was higher during summer and autumn, and individuals collected during these periods or from lakes with high microcystin concentration had a stronger decline in reproductive output. The populations were unable to adapt quickly enough to recover from the negative effects of microcystin, indicating limited effects of seasonal tolerance on the eco-evolutionary dynamics between Daphnia and phytoplankton.
FRESHWATER BIOLOGY
(2022)
Article
Marine & Freshwater Biology
Ramsy Agha, Melanie Gerphagnon, Charlotte Schampera, Thomas Rohrlack, Jutta Fastner, Justyna Wolinska
Summary: Chytrid parasites are recognized as effective control agents of cyanobacteria, but their infection does not lead to a significant increase in toxin production. This suggests that chytrid epidemics do not result in massive toxin release.
Article
Biotechnology & Applied Microbiology
Prashant Swapnil, Meenakshi Singh, Sweta Singh, Naveen Kumar Sharma, Ashwani K. Rai
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2015)
Article
Environmental Sciences
Ashutosh Mishra, Brahma Dutt Tripathi, Ashwani Kumar Rai
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2016)
Article
Biotechnology & Applied Microbiology
Prashant Swapnil, Amarish Kumar Yadav, Saurabh Srivastav, Naveen K. Sharma, Saripella Srikrishna, Ashwani K. Rai
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2017)
Article
Engineering, Environmental
Rashi Vishwakarma, Dolly Wattal Dhar, Sunil Pabbi
WATER SCIENCE AND TECHNOLOGY
(2018)
Article
Ecology
Ashutosh Mishra, Brahma Dutt Tripathi, Ashwani Kumar Rai
ECOLOGICAL ENGINEERING
(2014)
Article
Plant Sciences
Keshwanand Tripathi, Naveen Kumar Sharma, Hakuto Kageyama, Teruhiro Takabe, Ashwani Kumar Rai
EUROPEAN JOURNAL OF PHYCOLOGY
(2013)
Article
Biotechnology & Applied Microbiology
Rakhi Bajpai, Naveen K. Sharma, Ashwani K. Rai
JOURNAL OF APPLIED PHYCOLOGY
(2013)
Article
Microbiology
Meenakshi Singh, Naveen K. Sharma, Shyam Babu Prasad, Suresh Singh Yadav, Gopeshwar Narayan, Ashwani K. Rai
Article
Environmental Sciences
Rashi Vishwakarma, Dolly Wattal Dhar, Sudhir Saxena
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Green & Sustainable Science & Technology
Rashi Vishwakarma, Vidushi Dhaka, Thilini U. Ariyadasa, Anushree Malik
Summary: This review discusses the advantages and constraints of integrating algal technologies into the rural economy. Existing studies show that utilizing wastewater for algal cultivation can achieve significant biomass yields in sectors such as aquaculture and agriculture. Additionally, using algal biomass as a feed supplement in poultry and aquaculture can improve product quality and reduce production costs. However, more long-term studies are needed to establish the feasibility of using wastewater as a feed supplement and to explore the full utilization and downstream processing of harvested biomass.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Saurabh Samuchiwal, Rashi Vishwakarma, Nagesh Vikram Singh, Shweta Kalia, Gunisha Wadhawan, Shaikh Ziauddin Ahammad, Anushree Malik
Summary: This study investigated the characteristics of suspended microbial biomass in anaerobically treated textile effluent and optimized a feasible separation process. The integration of the coagulation-flocculation process with anaerobic process showed high turbidity, COD, and color removal efficiencies, indicating its promising potential for textile effluent treatment.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Rashi Vishwakarma, Saptarshi Dey, Saurabh Samuchiwal, Anushree Malik
Summary: A green extraction method was developed using partially hydrolysed microalgal cells grown in biocompatible solvent, allowing simultaneous cultivation and extraction of bioproducts. The enzymatic pretreatment of the microalgal cells achieved incomplete digestion of the cell wall. Cultivating the enzymatically pretreated cells with biocompatible solvent resulted in a 53.33% increase in lipid content and a 22% higher carotenoid content compared to conventional extraction. The cost benefit analysis showed that this method was favorable for biodiesel production.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Medicinal
Rashi Vishwakarma, Ashwani Kumar Rai
NATURAL PRODUCTS JOURNAL
(2013)
