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Publication Metadata only Microalgae as a key tool in achieving carbon neutrality for bioproduct production(ELSEVIER, 2023) Sadvakasova, Assemgul K.; Kossalbayev, Bekzhan D.; Bauenova, Meruyert O.; Balouch, Huma; Leong, Yoong Kit; Zayadan, Bolatkhan K.; Huang, Zhiyong; Alharby, Hesham F.; Tomo, Tatsuya; Chang, Jo-Shu; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Tunghai University; Tunghai University; Chinese Academy of Sciences; Tianjin Institute of Industrial Biotechnology, CAS; King Abdulaziz University; Tokyo University of Science; National Cheng Kung University; Yuan Ze University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Lomonosov Moscow State University; Bahcesehir UniversityThe upcoming global climate change as a result of anthropogenic action is now increasingly attracting the attention of scientific communities. Over the past three decades, researchers and industries around the world have spent a lot of time and effort developing various carbon capture and storage technologies, which, despite their promise, are still economically complex, with unclear long-term consequences to the environment. As an alternative, biological carbon sequestration is considered an attractive method of atmospheric CO2 fixation with the production of biomass, which, in turn, can be used as a readily renewable feedstock for the production of biofuels and other valuable products. This review focuses on the latest data of microalgae research in terms of key carbon footprint minimization strategies, which include features of the carbon concentrating mechanism (CCM) in microalgae, the main range of biofuels and the possibility of obtaining valuable metabolites based on them, such as bioplastics, biofertilizers, and biologically active compounds.Publication Metadata only Synthetic algocyanobacterial consortium as an alternative to chemical fertilizers(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2023) Sadvakasova, Assemgul K.; Bauenova, Meruyert O.; Kossalbayev, Bekzhan D.; Zayadan, Bolatkhan K.; Huang, Zhiyong; Wang, Jingjing; Balouch, Huma; Alharby, Hesham F.; Chang, Jo-Shu; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Chinese Academy of Sciences; Tianjin Institute of Industrial Biotechnology, CAS; King Abdulaziz University; Tunghai University; Tunghai University; National Cheng Kung University; Yuan Ze University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Bahcesehir UniversityThe use of unregulated pesticides and chemical fertilizers can have detrimental effects on biodiversity and human health. This problem is exacerbated by the growing demand for agricultural products. To address these global challenges and promote food and biological security, a new form of agriculture is needed that aligns with the principles of sustainable development and the circular economy. This entails developing the biotechnology market and maximizing the use of renewable and eco-friendly resources, including organic fertilizers and biofertilizers. Phototrophic microorganisms capable of oxygenic photosynthesis and assimilation of molecular nitrogen play a crucial role in soil microbiota, interacting with diverse microflora. This suggests the potential for creating artificial consortia based on them. Microbial consortia offer advantages over individual organisms as they can perform complex functions and adapt to variable conditions, making them a frontier in synthetic biology. Multifunctional consortia overcome the limitations of monocultures and produce biological products with a wide range of enzymatic activities. Biofertilizers based on such consortia present a viable alternative to chemical fertilizers, addressing the issues associated with their usage. The described capabilities of phototrophic and heterotrophic microbial consortia enable effective and environmentally safe restoration and preservation of soil properties, fertility of disturbed lands, and promotion of plant growth. Hence, the utilization of algo-cyanobacterial consortia biomass can serve as a sustainable and practical substitute for chemical fertilizers, pesticides, and growth promoters. Furthermore, employing these bio-based organisms is a significant stride towards enhancing agricultural productivity, which is an essential requirement to meet the escalating food demands of the growing global population. Utilizing domestic and livestock wastewater, as well as CO2 flue gases, for cultivating this consortium not only helps reduce agricultural waste but also enables the creation of a novel bioproduct within a closed production cycle.Publication Metadata only Microalgae- and cyanobacteria-derived phytostimulants for mitigation of salt stress and improved agriculture(ELSEVIER, 2024) Sarsekeyeva, Fariza K.; Sadvakasova, Asemgul K.; Sandybayeva, Sandugash K.; Kossalbayev, Bekzhan D.; Huang, Zhiyong; Zayadan, Bolatkhan K.; Akmukhanova, Nurziya R.; Leong, Yoong Kit; Chang, Jo-Shu; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Akhmet Yassawi International Kazakh-Turkish University; Chinese Academy of Sciences; Tianjin Institute of Industrial Biotechnology, CAS; Tunghai University; Tunghai University; National Cheng Kung University; Yuan Ze University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Russian Academy of Sciences; Bahcesehir UniversitySoil salinization poses severe abiotic stress that adversely affects plant growth and development, ultimately threatening global food security by inducing physiological abnormalities. In response to escalating nutrient demands, with global requirements quantified at 76 % for nitrogen and 87 % for phosphorus, modern agriculture is increasingly adopting sustainable practices to enhance nutrient recycling and reduce reliance on external inputs. Emerging sources of plant phytostimulants, such as microalgal and cyanobacterial biomass, show promise in augmenting crop yields and bolstering plant resistance to various abiotic factors, including salt stress. The efficacy of these microorganisms stems from their simplistic cellular structure, superior photosynthetic efficiency, capacity for heterotrophic growth, adaptability to varying environmental conditions, potential for metabolic engineering, and the abundance of valuable biomolecules (such as soluble amino acids, micronutrients, polysaccharides, and phytohormones) within their biomass. This review provides an analysis of the current research landscape concerning microalgae- and cyanobacteria-derived phytostimulants, highlighting their promise as an innovative and sustainable alternative to synthetic fertilizers in the agricultural sector. Moreover, it identifies various adaptive responses of plants to salinity stress and assesses the potential and challenges associated with the use of microalgae and cyanobacteria-based metabolites for developing new sustainable strategies to enhance crop tolerance to salinity stress.Publication Metadata only Biotechnological production of hydrogen: Design features of photobioreactors and improvement of conditions for cultivating cyanobacteria(PERGAMON-ELSEVIER SCIENCE LTD, 2024) Kossalbayev, Bekzhan D.; Yilmaz, Girayhan; Sadvakasova, Asemgul K.; Zayadan, Bolatkhan K.; Belkozhayev, Ayaz M.; Kamshybayeva, Gulzhanay K.; Sainova, Gaukhar A.; Bozieva, Ayshat M.; Alharby, Hesham F.; Tomo, Tatsuya; Allakhverdiev, Suleyman I.; Satbayev University; Satbayev University; Al-Farabi Kazakh National University; Bahcesehir University; Aitkhozhin Institute of Molecular Biology & Biochemistry; Akhmet Yassawi International Kazakh-Turkish University; Timiryazev Institute of Plant Physiology; Russian Academy of Sciences; King Abdulaziz University; Tokyo University of ScienceOver the last five decades, solar-based hydrogen (H2) production has been intensively studied. Specifically, the study of biophotolysis by cyanobacteria has received great attention to produce H2, and promising research approaches have been established. To date, numerous photobioreactors (PBRs) have been built to collect cyanobacterial biomass and generate bioenergy. Additionally, different PBR parameters were adjusted to increase the product yield. PBR development holds great potential not only for cell biomass but also for biological H2 production. This review aimed to examine the mechanisms involved in H2 production by cyanobacteria, explore the factors influencing the process, and describe five distinct PBRs known for their high H2 production. This article examines the pros and cons of the most efficient PBRs for H2 production and offers insights into strategies for (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Publication Metadata only Genetic engineering contribution to developing cyanobacteria-based hydrogen energy to reduce carbon emissions and establish a hydrogen economy(PERGAMON-ELSEVIER SCIENCE LTD, 2024) Kamshybayeva, Gulzhanay K.; Kossalbayev, Bekzhan D.; Sadvakasova, Asemgul K.; Kakimova, Ardak B.; Bauenova, Meruyert O.; Zayadan, Bolatkhan K.; Lan, Chi-Wei; Alwasel, Saleh; Tomo, Tatsuya; Chang, Jo-Shu; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Yuan Ze University; King Saud University; Tokyo University of Science; Tunghai University; Tunghai University; National Cheng Kung University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Russian Academy of Sciences; King Abdulaziz University; Bahcesehir UniversityGrowing concerns over greenhouse gas emissions and energy insecurity caused by the depletion of conventional fuels have led to a search for sustainable fuel alternatives. As an alternative energy carrier, hydrogen (H2) is particularly attractive as only water is released during combustion. The process of H2 production from genetically engineered phototrophic microorganisms through biophotolysis leads the way to solve energy shortages. Genetically engineered cyanobacteria species are potential candidates due to their superior properties for reducing greenhouse gases and using solar energy as an energy source. The review discusses the mechanisms and enzymes involved in H2 production by cyanobacteria and applications of genetic engineering. A critical analysis of the fundamental issues attributed to the technical advancement of photobiological cyanobacteria-based H2 production is provided, as well as the perspectives for future research to reduce carbon dioxide emissions through the creation of waste-free technology. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Publication Metadata only Prospects of cyanobacterial pigment production: Biotechnological potential and optimization strategies(ELSEVIER, 2022) Sandybayeva, Sandugash K.; Kossalbayev, Bekzhan D.; Zayadan, Bolatkhan K.; Sadvakasova, Asem K.; Bolatkhan, Kenzhegul; Zadneprovskaya, Elena, V; Kakimov, Ardak B.; Alwasel, Saleh; Leong, Yoong Kit; Allakhverdiev, Suleyman I.; Chang, Jo-Shu; Al-Farabi Kazakh National University; Satbayev University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; King Saud University; Tunghai University; Russian Academy of Sciences; Bahcesehir University; Tunghai University; National Cheng Kung University; Yuan Ze UniversityIncreasing awareness of the harmful effects of synthetic colorants has led consumers to favor the use of natural alternatives such as plant or microbial pigments in food and cosmetics. Cyanobacteria are a rich source of many natural biopigments that are of high commercial value. In the market, bio-based pigments are usually sold as extracts to reduce purification costs. Various cell disruption methods are used for pigment extraction, such as sonication, homogenization, high pressure, supercritical CO2 extraction, enzymatic extraction, as well as other promising novel extraction methods that make the production of cyanobacterial pigments economically viable. In addition, a continuous cultivation system is considered the most suitable cultivation mode for large-scale biomass production. However, a major limitation in the large-scale production of cyanobacterial pigments is the installation and operation costs. Thus, basic and applied research is still needed to overcome such limitations and enable cyanobacteria to enter the global market. This review focuses on various cyanobacterial pigments, their applications, and current biotechnological approaches to increase the production of biopigments for their potential use in the pharmaceutical, food, and cosmetic industries. The current state of production technologies based on either open pond systems or closed photobioreactors was compared. The potential of scientific and technological advances to increase yield and reduce production costs of cyanobacteria biomass-based pigments was also discussed.Publication Metadata only Effect of the photosynthesis inhibitors on hydrogen production by non-heterocyst cyanobacterial strains(PERGAMON-ELSEVIER SCIENCE LTD, 2024) Kamshybayeva, Gulzhanay K.; Kossalbayev, Bekzhan D.; Sadvakasova, Asemgul K.; Bauenova, Meruyert O.; Zayadan, Bolatkhan K.; Krapivina, Anastasia A.; Sainova, Gaukhar A.; Alharby, Hesham F.; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Akhmet Yassawi International Kazakh-Turkish University; King Abdulaziz University; Russian Academy of Sciences; Bahcesehir UniversityThe energy of cyanobacterial hydrogen (H2) produced via bio-photolysis is being investigated as a potential solution to early-century environmental challenges. The main limiting factors of cyanobacterial H2 photoproduction are the availability of electrons for [NiFe]hydrogenase (H2ase) and the suppression of bidirectional H2ase activity induced by O2 acquired from water molecules splitting in photosystem II. The current study investigated how photosynthetic inhibitors (PIs) affected H2 production in non-N2-fixing cyanobacteria. Study findings revealed a rather high H2 yield in Synechocystis sp. PSU 1262, as well as a beneficial (14.2-fold) influence of 500 mmol KCN on the H2 production by the aforesaid strain. A 12/6-h light/dark cycle increased H2 production by 80.3% in cells supplemented with 500 mmol KCN. Under the optimised conditions, the photobiological H2 production of Synechocystis sp. PSU 1262 increased from 49.6 to 1552 nmol H2 mg-1 Chl a h-1. PIs suppressed chlorophyll a concentration under illumination, lowering the O2 levels, which enhanced bidirectional H2ase activity in Synechocystis sp. PSU 1262 cells. Applying varied light modes, preceded by the incorporation of PIs at optimal concentrations in H2 production by research cyanobacterial strains, improved the H2 yield and contributed signif (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Publication Metadata only Prospecting the biofuel potential of new microalgae isolates(PERGAMON-ELSEVIER SCIENCE LTD, 2023) Balouch, Huma; Zayadan, Bolatkhan K.; Sadvakasova, Asemgul K.; Kossalbayev, Bekzhan D.; Bolatkhan, Kenzhegul; Gencer, Donus; Civelek, Dilek; Demirbag, Zihni; Alharby, Hesham F.; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Trabzon University; Karadeniz Technical University; King Abdulaziz University; Russian Academy of Sciences; Timiryazev Institute of Plant Physiology; Bahcesehir UniversityThe continued search and urgent need for renewable fuel sources have necessitated the exploration of microalgae to identify relevant species for making biofuels. The aim of the study was bioprospecting and screening native microalgae strains from freshwater habitats of the Almaty region, Kazakhstan, to assess the potential for producing biofuel. The studied strains demonstrated simultaneous biomass productivity, lipid productivity, suitable fatty acid composition, and biodiesel properties. The sequence analysis of the ribosomal DNA internal transcribed spacer partial region and ribulose-bisphosphate carboxylase gene (rbcL) led to the identification of five microalgae: Monoraphidium griffithii ZBD-01, Nephrochlamys subsolitaria ZBD-02, Ankistrodesmus falcatus ZBD-03, Parachlorella kessleri ZBD-04, and Desmodesmus pannonicus ZBD-05. P. kessleri had the highest biomass production (1.42 +/- 0.08 g L-1 day(-1)), lipid productivity (29 +/- 1.2 g L(-1)day(-1)), and C-16-C-18 fatty acid contents (90%), followed by A. falcatus and M. griffithi. Gas chromatography/mass spectrometry analysis indicated that the dominant fatty acids in these strains were palmitic, stearic, and oleic acids. The calculated biodiesel properties of P. kessleri and A. fal-catus based on fatty acid methyl esters (FAME) profiles showed relatively good fuel properties (cetane numbers -48 and 50, iodine and saponification values -83.4 and 103.6 g I-2/100 g oil, 260.8 and 199.5 mg KOH g(-1)), which correlate well with. Our results suggest that P. kessleri and A. falcatus are promising strains for biodiesel production due to their high lipid productivity, fatty acid profile with relatively high content of oleic acid, and suitable biodiesel properties. The isolated native species of microalgae from natural freshwater bodies of the Almaty region present opportunities for further exploitation for the sustainable production of biomass and biodiesel. (C) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Publication Metadata only Screening and optimisation of hydrogen production by newly isolated nitrogen-fixing cyanobacterial strains(PERGAMON-ELSEVIER SCIENCE LTD, 2023) Kamshybayeva, Gulzhanay K.; Kossalbayev, Bekzhan D.; Sadvakasova, Asemgul K.; Bauenova, Meruyert O.; Zayadan, Bolatkhan K.; Bozieva, Ayshat M.; Alharby, Hesham F.; Tomo, Tatsuya; Allakhverdiev, Suleyman I.; Al-Farabi Kazakh National University; Satbayev University; Satbayev University; Timiryazev Institute of Plant Physiology; Russian Academy of Sciences; King Abdulaziz University; Tokyo University of Science; Bahcesehir UniversityRecently, there has been a propensity to postpone dealing with the world's climate concerns until later, resulting in a 1.5 degrees C rise in temperature over the last century. Therefore, interest in biologically derived, inexhaustible energy sources based on solar energy is growing. Cyanobacteria have the potential to produce clean, renewable fuels in the form of hydrogen (H2) gas, derived from solar energy and water. The current study reports the screening 11 cyanobacterial strains isolated from rice paddies and hotsprings for efficient H2 producers. According to our findings, H2 concentrations in the species ranged from 3.6 to 48.9 mmol mg-1 Chl a h-1. H2 production by isolated species was shown to have a 2% positive influence on oxygen (O2) and carbon dioxide (CO2) concentrations and a 2% negative effect on all nitrogen gas (N2) concentrations. It was discovered that at high CO2 concentrations, photosynthesis is enhanced but H2 production is suppressed. Anabaena variabilis BTA-1047 was found to be the most active H2-producing species, with an H2 production activity of 21.3 mmol mg-1 Chl a h-1. Moreover, a 1% O2: 2% CO2 gas mixture doubled the strain activity of H2 production. The findings of the study called into the question the notion that only an anaerobic environment is required for H2 production by N2-fixing cyanobacterial species and explored whether H2 productivity can be increased by stimulating the micro-anaerobic environment with a carbon source. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Publication Metadata only Prospects of cyanobacterial pigment production: Biotechnological potential and optimization strategies(Elsevier B.V., 2022) Sandybayeva, Sandugash K.; Kossalbayev, Bekzhan D.; Zayadan, Bolatkhan K.; Sadvakasova, Asemgul K.; Bolatkhan, K.; Zadneprovskaya, Elena V.; Kakimova, Ardak B.; Alwasel, Salah Hamad; Leong, Yoong Kit; Allakhverdiev, Suleyman I.; Sandybayeva, Sandugash K., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan; Kossalbayev, Bekzhan D., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan, Department of Chemical and Biochemical Engineering, Satbayev University, Almaty, Kazakhstan; Zayadan, Bolatkhan K., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan; Sadvakasova, Asemgul K., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan; Bolatkhan, K., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan; Zadneprovskaya, Elena V., Controlled Photobiosynthesis Laboratory, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russian Federation; Kakimova, Ardak B., Faculty of Biology and Biotechnology, Al Farabi Kazakh National University, Almaty, Kazakhstan; Alwasel, Salah Hamad, College of Sciences, Riyadh, Saudi Arabia; Leong, Yoong Kit, Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan; Allakhverdiev, Suleyman I., Controlled Photobiosynthesis Laboratory, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russian Federation, Institute of Fundamental Problems of Biology of the Russian Academy of Sciences, Pushchino, Russian Federation, Faculty of Engineering and Natural Sciences, Bahçeşehir Üniversitesi, Istanbul, TurkeyIncreasing awareness of the harmful effects of synthetic colorants has led consumers to favor the use of natural alternatives such as plant or microbial pigments in food and cosmetics. Cyanobacteria are a rich source of many natural biopigments that are of high commercial value. In the market, bio-based pigments are usually sold as extracts to reduce purification costs. Various cell disruption methods are used for pigment extraction, such as sonication, homogenization, high pressure, supercritical CO2 extraction, enzymatic extraction, as well as other promising novel extraction methods that make the production of cyanobacterial pigments economically viable. In addition, a continuous cultivation system is considered the most suitable cultivation mode for large-scale biomass production. However, a major limitation in the large-scale production of cyanobacterial pigments is the installation and operation costs. Thus, basic and applied research is still needed to overcome such limitations and enable cyanobacteria to enter the global market. This review focuses on various cyanobacterial pigments, their applications, and current biotechnological approaches to increase the production of biopigments for their potential use in the pharmaceutical, food, and cosmetic industries. The current state of production technologies based on either open pond systems or closed photobioreactors was compared. The potential of scientific and technological advances to increase yield and reduce production costs of cyanobacteria biomass-based pigments was also discussed. © 2022 Elsevier B.V., All rights reserved.