Article
Chemistry, Physical
Bekzhan D. Kossalbayev, Ardak B. Kakimova, Kenzhegul Bolatkhan, Bolatkhan K. Zayadan, Sandugash K. Sandybayeva, Ayshat M. Bozieva, Asemgul K. Sadvakasova, Saleh Alwasel, Suleyman I. Allakhverdiev
Summary: The limited supply of oil has led to the exploration of alternative energy sources, with hydrogen gas emerging as a promising option. A wild strain of cyanobacteria isolated from rice paddies in Kazakhstan has shown high hydrogen production potential. Among the strains studied, Synechocystis sp. S-1 exhibited the highest hydrogen production rate under light conditions, while the wild-type cyanobacterium Anabaena variabilis A-1 had a higher hydrogen production rate in the dark.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Gulzhanay K. Kamshybayeva, Bekzhan D. Kossalbayev, Asemgul K. Sadvakasova, Meruyert O. Bauenova, Bolatkhan K. Zayadan, Ayshat M. Bozieva, Hesham F. Alharby, Tatsuya Tomo, Suleyman I. Allakhverdiev
Summary: There is a growing interest in biologically derived, inexhaustible energy sources based on solar energy, as there has been a tendency to postpone dealing with climate concerns. Cyanobacteria have the potential to produce clean, renewable fuels in the form of hydrogen gas. A recent study screened 11 cyanobacterial strains for efficient hydrogen production and found that the most active species was Anabaena variabilis BTA-1047, with an H2 production activity of 21.3 mmol mg-1 Chl a h-1. The study also questioned the idea that only an anaerobic environment is required for H2 production by cyanobacterial species.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Ayshat M. Bozieva, Makhmadyusuf Kh. Khasimov, Roman A. Voloshin, Maria A. Sinetova, Elena V. Kupriyanova, Sergey K. Zharmukhamedov, Dmitry O. Dunikov, Anatoly A. Tsygankov, Tatsuya Tomo, Suleyman I. Allakhverdiev
Summary: This study aims to investigate the H2-releasing ability of new strains of cyanobacteria and evaluate the effects of the photosystem II inhibitor DCMU on H2 production under light and dark conditions. The results demonstrate that cultures treated with DCMU produced several times more H2 than untreated cells. The highest H2 photoproduction rate of 4.24 mmol H2 (mg Chl a h)-1 was observed in Dolichospermum sp. IPPAS B.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Biotechnology & Applied Microbiology
Laila Dina Amalia Purba, Fatin Syahirah Othman, Ali Yuzir, Shaza Eva Mohamad, Koji Iwamoto, Norhayati Abdullah, Kazuya Shimizu, Joni Hermana
Summary: This study investigated the cultivation of isolated microalgae strains using municipal wastewater and found that Desmodesmus maximus CN06 had the highest growth rate and efficient nutrient removal. Acutodesmus obliquus CN01 showed the fastest total phosphorus removal, while D. maximus CN06 had the highest lipid productivity and potential for biodiesel production.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Marine & Freshwater Biology
Yasaman Tavakoli, Fatemeh Mohammadipanah, Shu Harn Te, Luhua You, Karina Yew-Hoong Gin
Summary: This study investigated the occurrence and biodiversity of cyanobacteria in a drinking water reservoir in Tehran province, Iran. Nine different cyanobacterial species were isolated and classified, with some strains showing production of cyanotoxins such as microcystin, cylindrospermopsin, and anatoxin-a. The research also identified novel findings, such as the detection of various cyanotoxins in different strains and the production of cylindrospermopsin in a picocyanobacterial strain. These findings contribute to expanding knowledge on freshwater toxic cyanobacteria taxonomy in the Middle East and will aid in the development of new water management policies in the future.
Article
Agricultural Engineering
Geetanjali Yadav, Manigandan Sekar, Sang-Hyoun Kim, V. Edwin Geo, Shashi Kant Bhatia, Jamal S. M. Sabir, Nguyen Thuy Lan Chi, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: This research article investigated lipid accumulation in four fast growing, filamentous cyanobacterial strains, finding that certain strains had higher lipid content under optimal light conditions. Additionally, the effects of different temperatures and pH on lipid content varied among the strains.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Medicinal
Marta Bellver, Susana Lemos da Costa, Begona Astrain Sanchez, Vitor Vasconcelos, Ralph Urbatzka
Summary: This study found that some cyanobacterial strains can inhibit intestinal lipid absorption without any signs of toxicity, and may be developed in the future as nutraceuticals to combat obesity.
Article
Engineering, Chemical
Hao-Cheng Yu, Chyi-How Lay, Peer Mohamed Abdul, Jane-Yii Wu
Summary: This study optimized the cultivation conditions for a local microalgae species, Chlorella sp. G3H3-1-2, with high pH-resistant, high growth rate, and high lipid content. It was found that a pH range of 6.0 to 8.0 with glucose as the carbon source resulted in the highest specific growth rate of 1.22 day(-1) for Chlorella sp. G3H3-1-2. However, the highest total FAMEs content of 59% in the biomass of 1.75 g/L was obtained when using the combination of glucose and (NH4)2SO4 at a high pH value of 10.
Article
Agricultural Engineering
Pengfei Cheng, Jianke Huang, Xiaotong Song, Ting Yao, Jingshun Jiang, Chengxu Zhou, Xiaojun Yan, Roger Ruan
Summary: Furfural wastewater treatment is a significant concern in modern chemical production. Traditional methods for wastewater treatment prove inadequate. This study investigates the use of Chlorella pyrenoidosa for growth and pollutants removal in both heterotrophic and mixotrophic cultures. Results show that 10-fold dilution yields the highest biomass and removal efficiency for COD and TN. However, TP removal is inconsistent in both mixotrophic and heterotrophic modes. Algal cells experience faster growth when 0.25 g/L NaNO3 is added to the FWW compared to high nitrogen levels. In heterotrophic conditions, the total lipid content is 18.53%, which surpasses the values in mixotrophy at a concentration of 0.75 g/L NaNO3. The varying carbon assimilation mechanisms of the algal cells contribute to differences in cell growth and pollutant removal under different culture modes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Plant Sciences
Timothy J. O'Donnell, Yuheng Luo, Wesley Y. Yoshida, Sayuri Suzuki, Rui Sun, Philip G. Williams
Summary: In this study, polar metabolites produced by cyanobacterial strains were examined. The analysis of media extracts led to the discovery of seven sesquiterpenoid compounds with different structures, and their structures and configurations were determined through various techniques. A straightforward process for determining the configuration of these compounds is presented, supported by computational spectra and model compounds.
JOURNAL OF NATURAL PRODUCTS
(2022)
Article
Biotechnology & Applied Microbiology
Mahammed Ilyas Khazi, Chenshuo Li, Fakhra Liaqat, Przemyslaw Malec, Jian Li, Pengcheng Fu
Summary: This study evaluated two native cyanobacterial strains for phycocyanin production and found that they showed potential for valuable production. Optimal growth rates and accumulation of phycocyanin were observed under specific conditions. Increasing the nitrogen and iron concentration in the media improved growth rate and C-PC accumulation. A combined extraction protocol of freeze-thaw and ultrasonication was effective in increasing C-PC extraction efficiency.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Agricultural Engineering
Shin Myung Kim, Jee Young Kim, Jaewon Park, Eun Hee Bae, Jae-Shin Kang, Ka Young Kim, Yoon-E Choi
Summary: Cyanobacteria-derived biofuels can be produced efficiently by mixotrophic cultivation using volatile fatty acids as a low-cost carbon source. Butyric acid was found to be more effective than acetic acid in enhancing cell growth and increasing biodiesel and bioethanol production. The study contributes to the potential commercialization of carbon-neutral fuels derived from cyanobacteria and the development of a circular bioeconomy.
BIORESOURCE TECHNOLOGY
(2023)
Article
Microbiology
Emily Schifano, Alberta Tomassini, Adele Preziosi, Jorge Montes, Walter Aureli, Patrizia Mancini, Alfredo Miccheli, Daniela Uccelletti
Summary: Autochthonous lactic acid bacteria isolated from carrots showed promising probiotic potential both in vitro and in vivo, exhibiting antibiotic susceptibility and the ability to inhibit the growth of various pathogens. Through experiments conducted in a nematode model, it was found that these LAB strains could induce longevity effects, protect against pathogen infections, and stimulate innate immunity.
Article
Biotechnology & Applied Microbiology
Abdelfatah Abomohra, Mei Li, Shah Faisal, Li Li, Mahdy Elsayed
Summary: The present study optimized the composition of synthetic wastewater as a mixotrophic medium for the growth and lipid accumulation of Chlorella sp., while simultaneously achieving high nitrogen removal. The results showed that the highest lipid productivity was achieved at 25% seawater and 4 g/L glycerol supplementation. Through central composite design and numerical optimization, the optimum conditions for maximum lipid productivity and nitrogen removal were determined. Under the optimized conditions, the dry weight, lipid content, and lipid productivity of Chlorella sp. significantly increased. Moreover, the optimization process also resulted in changes in the fatty acid proportions, leading to biodiesel characteristics that met international standards. This study provides an economical approach for enhancing biodiesel production through the optimization and efficient nutrient recycling of Chlorella sp.
FERMENTATION-BASEL
(2022)
Article
Green & Sustainable Science & Technology
Jeevitha Parthiban, Ranjitha Jambulingam
Summary: In this study, the cyanobacterial species Synechococcus elongatus and Anabaena were cultured under different media conditions to enrich biomass and lipid productivity. BG-11 medium was found to be the most efficient and cost-effective for both species. The effect of organic carbon sources on biomass and lipid productivity was also investigated, with glycerol showing a significant enhancing effect on lipid production, particularly in Synechococcus elongatus.
Article
Microbiology
Leila Alidoust, Neda Soltani, Sima Modiri, Omid Haghighi, Aisan Azarivand, Khosro Khajeh, Hossein Shahbani Zahiri, Hojatollah Vali, Kambiz Akbari Noghabi
Article
Environmental Sciences
Omid Haghighi, Shahab Shahryari, Mojgan Ebadi, Sima Modiri, Hossein Shahbani Zahiri, Hadi Maleki, Kambiz Akbari Noghabi
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2017)
Article
Biochemistry & Molecular Biology
Hakimeh Sharafi, Mahya Abdoli, Hamidreza Hajfarajollah, Nima Samie, Leila Alidoust, Habib Abbasi, Jamshid Fooladi, Hossein Shahbani Zahiri, Kambiz Akbari Noghabi
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2014)
Article
Biochemistry & Molecular Biology
Hakimeh Sharafi, Venos Derakhshan, Mojgan Paknejad, Leila Alidoust, Azadeh Tohidi, Majid Pornour, Hamidreza Hajfarajollah, Hossein Shahbani Zahiri, Kambiz Akbari Noghabi
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
Nasrin Masoudzadeh, Leila Alidoust, Nima Samie, Hamidreza Hajfarajollah, Hakimeh Sharafi, Sima Modiri, Hossein Shahbani Zahiri, Hojatollah Vali, Kambiz Akbari Noghabi
JOURNAL OF BIOTECHNOLOGY
(2014)
Article
Environmental Sciences
Leila Alidoust, Hossein Shahbani Zahiri, Hadi Maleki, Neda Soltani, Hojatollah Vali, Kambiz Akbari Noghabi
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2019)
Article
Biochemistry & Molecular Biology
Omid Haghighi, Soheila Davaeifar, Hossein Shahbani Zahiri, Hadi Maleki, Kambiz Akbari Noghabi
INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS
(2020)
Article
Biochemistry & Molecular Biology
Omid Haghighi, Mohammad Moradi
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Omid Haghighi
Summary: The study investigated the PKs of Synechocystis sp. PCC 6803 using in silico methods, revealing reliable predicted structures and providing insights into potential active or allosteric sites. The molecular docking and interaction analysis suggested a strong inhibition of sll0587 by ATP and its activation under low ATP concentrations.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2021)
Article
Engineering, Environmental
Fatemeh Masoumi, Elnaz Khadivinia, Leila Alidoust, Zahra Mansourinejad, Shahab Shahryari, Mahdieh Safaei, Amir Mousavi, Ali-Hatef Salmanian, Hossein Shahbani Zahiri, Hojatollah Vali, Kambiz Akbari Noghabi
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2016)