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Bajpai VK, Shukla S, Kang SM, Hwang SK, Song X, Huh YS, Han YK. Developments of Cyanobacteria for Nano-Marine Drugs: Relevance of Nanoformulations in Cancer Therapies. Mar Drugs 2018; 16:E179. [PMID: 29882898 PMCID: PMC6024944 DOI: 10.3390/md16060179] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/10/2018] [Accepted: 05/20/2018] [Indexed: 02/04/2023] Open
Abstract
Current trends in the application of nanomaterials are emerging in the nano-biotechnological sector for development of medicines. Cyanobacteria (blue-green algae) are photosynthetic prokaryotes that have applications to human health and numerous biological activities as dietary supplements. Cyanobacteria produce biologically active and chemically diverse compounds such as cyclic peptides, lipopeptides, fatty acid amides, alkaloids, and saccharides. More than 50% of marine cyanobacteria are potentially exploitable for the extraction of bioactive substances, which are effective in killing cancer cells by inducing apoptotic death. The current review emphasizes that not even 10% of microalgal bioactive components have reached commercialized platforms due to difficulties related to solubility. Considering these factors, they should be considered as a potential source of natural products for drug discovery and drug delivery approaches. Nanoformulations employing a wide variety of nanoparticles and their polymerized forms could be an emerging approach to the development of new cancer drugs. This review highlights recent research on microalgae-based medicines or compounds as well as their biomedical applications. This review further discusses the facts, limitations, and commercial market trends related to the use of microalgae for industrial and medicinal purposes.
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Affiliation(s)
- Vivek K Bajpai
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Korea.
| | - Shruti Shukla
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Korea.
| | - Sung-Min Kang
- WCSL of Integrated Human Airway-on-a-chip, Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Korea.
| | - Seung Kyu Hwang
- WCSL of Integrated Human Airway-on-a-chip, Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Korea.
| | - Xinjie Song
- Department of Food Science and Technology, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, Korea.
| | - Yun Suk Huh
- WCSL of Integrated Human Airway-on-a-chip, Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Korea.
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Korea.
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Bácsi I, Deli J, Gonda S, Mészáros I, Veréb G, Dobronoki D, Nagy SA, B-Béres V, Vasas G. Non-steroidal anti-inflammatory drugs initiate morphological changes but inhibit carotenoid accumulation in Haematococcus pluvialis. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Martínez-Ruiz EB, Martínez-Jerónimo F. Exposure to the herbicide 2,4-D produces different toxic effects in two different phytoplankters: A green microalga (Ankistrodesmus falcatus) and a toxigenic cyanobacterium (Microcystis aeruginosa). THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:1566-1578. [PMID: 29070448 DOI: 10.1016/j.scitotenv.2017.10.145] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/13/2017] [Accepted: 10/14/2017] [Indexed: 06/07/2023]
Abstract
The extensive use of 2,4-dichlorophenoxiacetic acid (2,4-D) in agriculture is an important source of pollution to water and soil. Toxicity of commonly used herbicides to non-target, planktonic photosynthetic organisms has not been described completely yet. Therefore, we determined the effect of subinhibitory 2,4-D concentrations on the Chlorophycean alga Ankistrodesmus falcatus and on a toxigenic strain of the cyanobacterium Microcystis aeruginosa. Population growth, photosynthetic pigments, macromolecular biomarkers (carbohydrates, lipids, and protein), and antioxidant enzymes (catalase [CAT], glutathione peroxidase [GPx], and superoxide dismutase [SOD]) were quantified, and the integrated biomarker response (IBR) was calculated. Scanning electron microscope (SEM) and transmission electron microscope (TEM) observations were also performed. The 96-h median inhibitory concentration (IC50) for 2,4-D was 1353.80 and 71.20mgL-1 for the alga and the cyanobacterium, respectively. Under 2,4-D stress, both organisms increased pigments and macromolecules concentration, modified the activity of all the evaluated enzymes, and exhibited ultrastructural alterations. M. aeruginosa also increased microcystins production, and A. falcatus showed external morphological alterations. The green alga was tolerant to high concentrations of the herbicide, whereas the cyanobacterium exhibited sensitivity comparable to other phytoplankters. Both organisms were tolerant to comparatively high concentrations of the herbicide; however, negative effects on the assessed biomarkers and cell morphology were significant. Moreover, stimulation of the production of cyanotoxins under chemical stress could increase the risk for the biota in aquatic environments, related to herbicides pollution in eutrophic freshwater ecosystems.
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Affiliation(s)
- Erika Berenice Martínez-Ruiz
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Hidrobiología Experimental, Carpio y Plan de Ayala S/N, Col. Santo Tomás, Mexico City 11340, Mexico
| | - Fernando Martínez-Jerónimo
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Hidrobiología Experimental, Carpio y Plan de Ayala S/N, Col. Santo Tomás, Mexico City 11340, Mexico.
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Talarek-Karwel M, Bajguz A, Piotrowska-Niczyporuk A, Rajewska I. The effect of 24-epibrassinolide on the green alga Acutodesmus obliquus (Chlorophyceae). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 124:175-183. [PMID: 29414313 DOI: 10.1016/j.plaphy.2018.01.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/31/2017] [Accepted: 01/19/2018] [Indexed: 05/25/2023]
Abstract
Brassinosteroids play an important role in the plant growth and development as well as in the adaptation of plants to environmental stresses. Studies have shown the effect of 24-epibrassinolide (EBL) in the range of concentrations 0.0001-10 μM on the green unicellular alga Acutodesmus obliquus (Chlorophyceae) during 7 days of cultivation. EBL is an effective stimulator of algal growth as it causes an increase in the number of cells and the contents of selected metabolites such as proteins, monosaccharides, and photosynthetic pigments (chlorophylls, carotenes, and xanthophylls). Furthermore, EBL inhibits the formation of reactive oxygen species such as hydrogen peroxide and oxidative damage as evidenced by a decrease of the lipid peroxidation. The positive effect of EBL resulting from the cellular oxidative state can be alleviated by antioxidants such as ascorbate peroxidase, catalase, superoxide dismutase, and ascorbate.
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Affiliation(s)
- Marta Talarek-Karwel
- University of Bialystok, Faculty of Biology and Chemistry, Institute of Biology, Department of Plant Biochemistry and Toxicology, 1J Konstantego Ciolkowskiego St., 15-245 Bialystok, Poland
| | - Andrzej Bajguz
- University of Bialystok, Faculty of Biology and Chemistry, Institute of Biology, Department of Plant Biochemistry and Toxicology, 1J Konstantego Ciolkowskiego St., 15-245 Bialystok, Poland.
| | - Alicja Piotrowska-Niczyporuk
- University of Bialystok, Faculty of Biology and Chemistry, Institute of Biology, Department of Plant Biochemistry and Toxicology, 1J Konstantego Ciolkowskiego St., 15-245 Bialystok, Poland
| | - Iwona Rajewska
- University of Bialystok, Faculty of Biology and Chemistry, Institute of Biology, Department of Plant Biochemistry and Toxicology, 1J Konstantego Ciolkowskiego St., 15-245 Bialystok, Poland
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Minich JJ, Morris MM, Brown M, Doane M, Edwards MS, Michael TP, Dinsdale EA. Elevated temperature drives kelp microbiome dysbiosis, while elevated carbon dioxide induces water microbiome disruption. PLoS One 2018; 13:e0192772. [PMID: 29474389 PMCID: PMC5825054 DOI: 10.1371/journal.pone.0192772] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/30/2018] [Indexed: 01/23/2023] Open
Abstract
Global climate change includes rising temperatures and increased pCO2 concentrations in the ocean, with potential deleterious impacts on marine organisms. In this case study we conducted a four-week climate change incubation experiment, and tested the independent and combined effects of increased temperature and partial pressure of carbon dioxide (pCO2), on the microbiomes of a foundation species, the giant kelp Macrocystis pyrifera, and the surrounding water column. The water and kelp microbiome responded differently to each of the climate stressors. In the water microbiome, each condition caused an increase in a distinct microbial order, whereas the kelp microbiome exhibited a reduction in the dominant kelp-associated order, Alteromondales. The water column microbiomes were most disrupted by elevated pCO2, with a 7.3 fold increase in Rhizobiales. The kelp microbiome was most influenced by elevated temperature and elevated temperature in combination with elevated pCO2. Kelp growth was negatively associated with elevated temperature, and the kelp microbiome showed a 5.3 fold increase Flavobacteriales and a 2.2 fold increase alginate degrading enzymes and sulfated polysaccharides. In contrast, kelp growth was positively associated with the combination of high temperature and high pCO2 'future conditions', with a 12.5 fold increase in Planctomycetales and 4.8 fold increase in Rhodobacteriales. Therefore, the water and kelp microbiomes acted as distinct communities, where the kelp was stabilizing the microbiome under changing pCO2 conditions, but lost control at high temperature. Under future conditions, a new equilibrium between the kelp and the microbiome was potentially reached, where the kelp grew rapidly and the commensal microbes responded to an increase in mucus production.
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Affiliation(s)
- Jeremiah J. Minich
- Department of Biology, San Diego State University, San Diego, CA, United States of America
| | - Megan M. Morris
- Department of Biology, San Diego State University, San Diego, CA, United States of America
| | - Matt Brown
- Department of Biology, San Diego State University, San Diego, CA, United States of America
| | - Michael Doane
- Department of Biology, San Diego State University, San Diego, CA, United States of America
| | - Matthew S. Edwards
- Department of Biology, San Diego State University, San Diego, CA, United States of America
| | | | - Elizabeth A. Dinsdale
- Department of Biology, San Diego State University, San Diego, CA, United States of America
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Dao GH, Wu GX, Wang XX, Zhuang LL, Zhang TY, Hu HY. Enhanced growth and fatty acid accumulation of microalgae Scenedesmus sp. LX1 by two types of auxin. BIORESOURCE TECHNOLOGY 2018; 247:561-567. [PMID: 28982085 DOI: 10.1016/j.biortech.2017.09.079] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/09/2017] [Accepted: 09/11/2017] [Indexed: 05/03/2023]
Abstract
Microalgae are potential candidates for the production of valuable products, such as renewable biodiesel, health products and pigments. However, low biomass productivity has restricted their large-scale applications. In this study, the effects of two auxins (one natural type of indole-3-acetic acid (IAA) and the other synthetic type of 2,4-dichlorophenoxyacetic acid (2,4-D)) on the growth and fatty acid methyl esters (FAMEs) production of a freshwater microalgae Scenedesmus sp. LX1 were investigated. Both auxins showed a "low dosage-promotion and high dosage-inhibition" effect on the growth and FAMEs accumulation. The optimum dosage of IAA and 2,4-D were 1mgL-1 and 0.1mgL-1, respectively. Moreover, the IAA could increase the monounsaturated fatty acid content. The auxins may promote the growth by enhancing the photosynthetic activity through increasing chlorophyll contents. Therefore, auxin significantly enhanced microalgal growth and FAMEs accumulation, and has a potential for application in developing efficient microalgal cultivation.
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Affiliation(s)
- Guo-Hua Dao
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Guang-Xue Wu
- Key Laboratory of Microorganism Application and Risk Control (MARC) of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, Guangdong, PR China
| | - Xiao-Xiong Wang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, PR China
| | - Lin-Lan Zhuang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Tian-Yuan Zhang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, PR China
| | - Hong-Ying Hu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, PR China.
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Autoinhibitory sterol sulfates mediate programmed cell death in a bloom-forming marine diatom. Nat Commun 2017; 8:1292. [PMID: 29101388 PMCID: PMC5670183 DOI: 10.1038/s41467-017-01300-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 09/07/2017] [Indexed: 01/07/2023] Open
Abstract
Cell mortality is a key mechanism that shapes phytoplankton blooms and species dynamics in aquatic environments. Here we show that sterol sulfates (StS) are regulatory molecules of a cell death program in Skeletonema marinoi, a marine diatom-blooming species in temperate coastal waters. The molecules trigger an oxidative burst and production of nitric oxide in a dose-dependent manner. The intracellular level of StS increases with cell ageing and ultimately leads to a mechanism of apoptosis-like death. Disrupting StS biosynthesis by inhibition of the sulfonation step significantly delays the onset of this fatal process and maintains steady growth in algal cells for several days. The autoinhibitory activity of StS demonstrates the functional significance of small metabolites in diatoms. The StS pathway provides another view on cell regulation during bloom dynamics in marine habitats and opens new opportunities for the biochemical control of mass-cultivation of microalgae. Phytoplankton blooms are shaped by a period of rapid growth followed by massive cell death. Here the authors show that sterol sulfates accumulate in aging cells of a bloom-forming marine diatom and trigger an oxidative burst that leads to a mechanism of apoptosis-like death.
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58
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The Effects of Plant Growth Regulators on Cell Growth, Protein, Carotenoid, PUFAs and Lipid Production of Chlorella pyrenoidosa ZF Strain. ENERGIES 2017. [DOI: 10.3390/en10111696] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Photo Protection of Haematococcus pluvialis Algae by Astaxanthin: Unique Properties of Astaxanthin Deduced by EPR, Optical and Electrochemical Studies. Antioxidants (Basel) 2017; 6:antiox6040080. [PMID: 29065482 PMCID: PMC5745490 DOI: 10.3390/antiox6040080] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 01/30/2023] Open
Abstract
Abstract The antioxidant astaxanthin is known to accumulate in Haematococcus pluvialis algae under unfavorable environmental conditions for normal cell growth. The accumulated astaxanthin functions as a protective agent against oxidative stress damage, and tolerance to excessive reactive oxygen species (ROS) is greater in astaxanthin-rich cells. The detailed mechanisms of protection have remained elusive, however, our Electron Paramagnetic Resonance (EPR), optical and electrochemical studies on carotenoids suggest that astaxanthin's efficiency as a protective agent could be related to its ability to form chelate complexes with metals and to be esterified, its inability to aggregate in the ester form, its high oxidation potential and the ability to form proton loss neutral radicals under high illumination in the presence of metal ions. The neutral radical species formed by deprotonation of the radical cations can be very effective quenchers of the excited states of chlorophyll under high irradiation.
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60
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Ambati RR, Gogisetty D, Aswathnarayana Gokare R, Ravi S, Bikkina PN, Su Y, Lei B. Botryococcus as an alternative source of carotenoids and its possible applications – an overview. Crit Rev Biotechnol 2017; 38:541-558. [DOI: 10.1080/07388551.2017.1378997] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ranga Rao Ambati
- Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, China
- Estuarine Fisheries Research Institute of Doumen, Zhuhai, China
| | - Deepika Gogisetty
- Department of Chemistry, Sri Vivekananda College, Viveka Educational Institutions, Tenali, India
| | | | - Sarada Ravi
- Plant Cell Biotechnology Department, Central Food Technological Research Institute (Constituent Laboratory of Council of Scientific & Industrial Research), Mysore, India
| | | | - Yuepeng Su
- Estuarine Fisheries Research Institute of Doumen, Zhuhai, China
| | - Bo Lei
- Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, China
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61
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Choi YK, Kim HJ, Kumaran RS, Song HJ, Song KG, Kim KJ, Lee SH, Yang YH, Kim HJ. Enhanced growth and total fatty acid production of microalgae under various lighting conditions induced by flashing light. Eng Life Sci 2017; 17:976-980. [PMID: 32624847 DOI: 10.1002/elsc.201700001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/03/2017] [Accepted: 03/09/2017] [Indexed: 11/05/2022] Open
Abstract
Microalgae are gaining importance as a source of high-value bioproducts. However, data regarding optimization of algal productivity via variation of environmental factors are lacking. Here, we evaluated a novel lighting method for the enhancement of biomass and total fatty acid (TFA) productivities during algal cultivation. We cultivated six different algal strains (Chlorella vulgaris KCTC AG10002, Acutodesmus obliquus KGE18, Uronema sp. KGE03, Micractinium reisseri KGE19, Fragilaria sp., and Spirogyra sp.) under various lighting conditions-continuous light (CL), light-dark cycle (LD), and continuous dark (CD)-with or without additional flashing light. We monitored dry cell weight (DCW) and TFA concentrations during cultivation. For each algal strain, the growth rate showed markedly different responses to the various lighting modes. The growth rates of C. vulgaris KCTC AG10002 (1.34-fold DCW increase, LD with flash), A. obliquus KGE18 (5.16-fold DCW increase, LD with flash), Uronema sp. KGE03 (2.77-fold DCW increase, CL with flash), and M. reisseri KGE19 (1.52-fold DCW increase, CL with flash) markedly increased in response to flashing light. Additionally, in some algal strains cultivated under the LD mode, the flashing light treatment induced increased TFA concentrations (C. vulgaris, 1.19-fold increase; A. obliquus, 2.59-fold increase; and M. reisseri, 3.31-fold increase). Phytohormone analysis of M. reisseri revealed increases in growth rate and TFA concentrations, associated with phytohormone induction via flashing light (e.g. 2.93-fold increase in gibberellic acid); hence, flashing light can promote substantial alterations in algal metabolism.
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Affiliation(s)
- Yong-Keun Choi
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
| | - Hyun-Joong Kim
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
| | | | - Hak-Jin Song
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
| | | | - Kwang Jin Kim
- Urban Agriculture Research Division NIHHS Chunjoo Republic of Korea
| | - Sang Hyun Lee
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
| | - Hyung Joo Kim
- Department of Biological Engineering Konkuk University Seoul Republic of Korea
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Giridhar Babu A, Wu X, Kabra AN, Kim DP. Cultivation of an indigenous Chlorella sorokiniana with phytohormones for biomass and lipid production under N-limitation. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.02.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kim B, Praveenkumar R, Lee J, Nam B, Kim DM, Lee K, Lee YC, Oh YK. Magnesium aminoclay enhances lipid production of mixotrophic Chlorella sp. KR-1 while reducing bacterial populations. BIORESOURCE TECHNOLOGY 2016; 219:608-613. [PMID: 27543952 DOI: 10.1016/j.biortech.2016.08.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/10/2016] [Accepted: 08/11/2016] [Indexed: 06/06/2023]
Abstract
Improving lipid productivity and preventing overgrowth of contaminating bacteria are critical issues relevant to the commercialization of the mixotrophic microalgae cultivation process. In this paper, we report the use of magnesium aminoclay (MgAC) nanoparticles for enhanced lipid production from oleaginous Chlorella sp. KR-1 with simultaneous control of KR-1-associated bacterial growth in mixotrophic cultures with glucose as the model substrate. Addition of 0.01-0.1g/L MgAC promoted microalgal biomass production better than the MgAC-less control, via differential biocidal effects on microalgal and bacterial cells (the latter being more sensitive to MgAC's bio-toxicity than the former). The inhibition effect of MgAC on co-existing bacteria was, as based on density-gradient-gel-electrophoresis (DGGE) analysis, largely dosage-dependent and species-specific. MgAC also, by inducing an oxidative stress environment, increased both the cell size and lipid content of KR-1, resulting in a considerable, ∼25% improvement of mixotrophic algal lipid productivity (to ∼410mgFAME/L/d) compared with the untreated control.
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Affiliation(s)
- Bohwa Kim
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea; Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ramasamy Praveenkumar
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea; Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere 33720, Finland
| | - Jiye Lee
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Bora Nam
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Dong-Myung Kim
- Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyubock Lee
- Graduate School of Energy Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Young-Chul Lee
- Department of BioNano Technology, Gachon University, Seongnam-Si, Gyeonggi-do 13120, Republic of Korea
| | - You-Kwan Oh
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea.
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Halophilic microalgaeDunaliella salinaextracts improve seed germination and seedling growth ofTriticum aestivumL. under salt stress. ACTA ACUST UNITED AC 2016. [DOI: 10.17660/actahortic.2016.1148.2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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66
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Yu XJ, Sun J, Sun YQ, Zheng JY, Wang Z. Metabolomics analysis of phytohormone gibberellin improving lipid and DHA accumulation in Aurantiochytrium sp. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.05.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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67
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Shah MMR, Liang Y, Cheng JJ, Daroch M. Astaxanthin-Producing Green Microalga Haematococcus pluvialis: From Single Cell to High Value Commercial Products. FRONTIERS IN PLANT SCIENCE 2016; 7:531. [PMID: 27200009 PMCID: PMC4848535 DOI: 10.3389/fpls.2016.00531] [Citation(s) in RCA: 363] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 04/04/2016] [Indexed: 05/20/2023]
Abstract
Many species of microalgae have been used as source of nutrient rich food, feed, and health promoting compounds. Among the commercially important microalgae, Haematococcus pluvialis is the richest source of natural astaxanthin which is considered as "super anti-oxidant." Natural astaxanthin produced by H. pluvialis has significantly greater antioxidant capacity than the synthetic one. Astaxanthin has important applications in the nutraceuticals, cosmetics, food, and aquaculture industries. It is now evident that, astaxanthin can significantly reduce free radicals and oxidative stress and help human body maintain a healthy state. With extraordinary potency and increase in demand, astaxanthin is one of the high-value microalgal products of the future.This comprehensive review summarizes the most important aspects of the biology, biochemical composition, biosynthesis, and astaxanthin accumulation in the cells of H. pluvialis and its wide range of applications for humans and animals. In this paper, important and recent developments ranging from cultivation, harvest and postharvest bio-processing technologies to metabolic control and genetic engineering are reviewed in detail, focusing on biomass and astaxanthin production from this biotechnologically important microalga. Simultaneously, critical bottlenecks and major challenges in commercial scale production; current and prospective global market of H. pluvialis derived astaxanthin are also presented in a critical manner. A new biorefinery concept for H. pluvialis has been also suggested to guide toward economically sustainable approach for microalgae cultivation and processing. This report could serve as a useful guide to present current status of knowledge in the field and highlight key areas for future development of H. pluvialis astaxanthin technology and its large scale commercial implementation.
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Affiliation(s)
- Md. Mahfuzur R. Shah
- School of Environment and Energy, Peking University, Shenzhen Graduate SchoolShenzhen, China
| | - Yuanmei Liang
- School of Environment and Energy, Peking University, Shenzhen Graduate SchoolShenzhen, China
| | - Jay J. Cheng
- School of Environment and Energy, Peking University, Shenzhen Graduate SchoolShenzhen, China
- Department of Biological and Agricultural Engineering, North Carolina State UniversityRaleigh, NC, USA
| | - Maurycy Daroch
- School of Environment and Energy, Peking University, Shenzhen Graduate SchoolShenzhen, China
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Jiang L, Pei H, Hu W, Han F, Zhang L, Hou Q. Effect of diethyl aminoethyl hexanoate on the accumulation of high-value biocompounds produced by two novel isolated microalgae. BIORESOURCE TECHNOLOGY 2015; 197:178-84. [PMID: 26340025 DOI: 10.1016/j.biortech.2015.08.068] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/09/2015] [Accepted: 08/18/2015] [Indexed: 05/09/2023]
Abstract
The low productivity of microalgae has restricted scale-up application of microalgae-based biodiesel processes. Diethyl aminoethyl hexanoate (DA-6) was investigated to enhance the biomass and metabolite productivity. At a very low concentration (10(-7)M) DA-6 made Chlorella ellipsoidea SDEC-11 and Scenedesmus quadricauda SDEC-13 obtain enlarged cell size, 114mgL(-1)d(-1), 101mgL(-1)d(-1) biomass productivity and 39.13mgL(-1)d(-1), 32.69mgL(-1)d(-1) lipid productivity, respectively. Biomass and lipid productivity of SDEC-11 and SDEC-13 were 100mgL(-1)d(-1) and 30.05mgL(-1)d(-1), 94mgL(-1)d(-1) and 28.43mgL(-1)d(-1), respectively, without DA-6. Twice hormone dose in 10(-6)M DA-6 medium resulted in higher biomass productivity (106mgL(-1)d(-1)) and longer exponential growth of SDEC-13. DA-6 also ensured the property of microalgae biodiesel to meet the EN 14214 standard. The current investigation demonstrated that DA-6 accelerated the microalgae growth and simultaneously improved the quality and quantity of lipid for biodiesel production.
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Affiliation(s)
- Liqun Jiang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Haiyan Pei
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, No. 17923 Jingshi Road, Jinan 250061, China.
| | - Wenrong Hu
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, No. 17923 Jingshi Road, Jinan 250061, China
| | - Fei Han
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Lijie Zhang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Qingjie Hou
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
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Talero E, García-Mauriño S, Ávila-Román J, Rodríguez-Luna A, Alcaide A, Motilva V. Bioactive Compounds Isolated from Microalgae in Chronic Inflammation and Cancer. Mar Drugs 2015; 13:6152-209. [PMID: 26437418 PMCID: PMC4626684 DOI: 10.3390/md13106152] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/09/2015] [Accepted: 09/15/2015] [Indexed: 12/12/2022] Open
Abstract
The risk of onset of cancer is influenced by poorly controlled chronic inflammatory processes. Inflammatory diseases related to cancer development include inflammatory bowel disease, which can lead to colon cancer, or actinic keratosis, associated with chronic exposure to ultraviolet light, which can progress to squamous cell carcinoma. Chronic inflammatory states expose these patients to a number of signals with tumorigenic effects, including nuclear factor kappa B (NF-κB) and mitogen-activated protein kinases (MAPK) activation, pro-inflammatory cytokines and prostaglandins release and ROS production. In addition, the participation of inflammasomes, autophagy and sirtuins has been demonstrated in pathological processes such as inflammation and cancer. Chemoprevention consists in the use of drugs, vitamins, or nutritional supplements to reduce the risk of developing or having a recurrence of cancer. Numerous in vitro and animal studies have established the potential colon and skin cancer chemopreventive properties of substances from marine environment, including microalgae species and their products (carotenoids, fatty acids, glycolipids, polysaccharides and proteins). This review summarizes the main mechanisms of actions of these compounds in the chemoprevention of these cancers. These actions include suppression of cell proliferation, induction of apoptosis, stimulation of antimetastatic and antiangiogenic responses and increased antioxidant and anti-inflammatory activity.
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Affiliation(s)
- Elena Talero
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Sofía García-Mauriño
- Department of Plant Biology and Ecology, Faculty of Biology, University of Seville, Seville 41012, Spain.
| | - Javier Ávila-Román
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Azahara Rodríguez-Luna
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Antonio Alcaide
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Virginia Motilva
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
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Li J, Niu X, Pei G, Sui X, Zhang X, Chen L, Zhang W. Identification and metabolomic analysis of chemical modulators for lipid accumulation in Crypthecodinium cohnii. BIORESOURCE TECHNOLOGY 2015; 191:362-8. [PMID: 25818259 DOI: 10.1016/j.biortech.2015.03.068] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 05/26/2023]
Abstract
In the study, fourteen chemical modulators from five groups (i.e., auxin, gibberellin, cytokinin, signal transducer and amine) were evaluated for their effects on lipid accumulation in Crypthecodinium cohnii. The results showed that naphthoxyacetic acid (BNOA), 2-chlorodracylicacid, salicylic acid (SA), abscisic acid (ABA) and ethanolamine (ETA), increased lipid accumulation in C. cohnii by 10.00-18.78%. In addition, the combined uses of the above chemicals showed that two combinations, 1.0mg/L SA & 152.7 mg/L ETA and 4.0mg/L BNOA & 152.7 mg/L ETA, increased lipid accumulation by 22.45% and 20.54%, respectively. Moreover, a targeted metabolomic approach was employed to decipher the possible mechanisms responsible for the increased lipid accumulation, and the results showed that the enhanced metabolism in glycolysis and TCA cycle as well as the decreased metabolism in PPP pathway could be important for the stimulatory roles of BNOA & ETA and SA & ETA on lipid accumulation in C. cohnii.
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Affiliation(s)
- Jinghan Li
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Xiangfeng Niu
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Guangsheng Pei
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Xiao Sui
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Xiaoqing Zhang
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Lei Chen
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China
| | - Weiwen Zhang
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; SynBio Platform, Collaborative Innovation Center of Chemical Science & Engineering, Tianjin, PR China.
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Yu X, Niu X, Zhang X, Pei G, Liu J, Chen L, Zhang W. Identification and mechanism analysis of chemical modulators enhancing astaxanthin accumulation in Haematococcus pluvialis. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.07.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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