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Brito-Bello AA, Lopez-Arredondo D. Bioactive Compounds with Pesticide Activities Derived from Aged Cultures of Green Microalgae. BIOLOGY 2023; 12:1149. [PMID: 37627033 PMCID: PMC10452921 DOI: 10.3390/biology12081149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/08/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023]
Abstract
The excessive use of synthetic pesticides has caused environmental problems and human health risks and increased the development of resistance in several organisms. Allelochemicals, secondary metabolites produced as part of the defense mechanisms in plants and microorganisms, are an attractive alternative to replace synthetic pesticides to remediate these problems. Microalgae are natural producers of a wide range of allelochemicals. Thus, they provide new opportunities to identify secondary metabolites with pesticide activities and an alternative approach to discover new modes of action and circumvent resistance. We screened 10 green microalgae strains belonging to the Chlorophyta phylum for their potential to inhibit the growth of photosynthetic and nonphotosynthetic organisms. Bioassays were established to assess microalgae extracts' effectiveness in controlling the growth of Chlorella sorokiniana, Arabidopsis thaliana, Amaranthus palmeri, and the model nematode Caenorhabditis elegans. All tested strains exhibited herbicidal, nematocidal, or algicidal activities. Importantly, methanol extracts of a Chlamydomonas strain effectively controlled the germination and growth of a glyphosate-resistant A. palmeri biotype. Likewise, some microalgae extracts effectively killed C. elegans L1 larvae. Comprehensive metabolic profiling using LC-MS of extracts with pesticide activities showed that the metabolite composition of Chlamydomonas, Chlorella, and Chloroidium extracts is diverse. Molecules such as fatty acids, isoquinoline alkaloids, aldehydes, and cinnamic acids were more abundant, suggesting their participation in the pesticide activities.
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Affiliation(s)
| | - Damar Lopez-Arredondo
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA
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Vishwakarma R, Dey S, Samuchiwal S, Malik A. A biphasic photobioreactor system for consecutive extraction of lipids and carotenoids from pre-hydrolysed microalgae and evaluation of its biodiesel potential. ENVIRONMENTAL RESEARCH 2023; 226:115681. [PMID: 36925037 DOI: 10.1016/j.envres.2023.115681] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
A green extraction method is developed using partially hydrolysed microalgal cells grown in biocompatible solvent for simultaneous cultivation and extraction of bioproducts from a highly efficient permeabilized microalgal cell with enhanced biomass and lipid content for potential use in biodiesel production. Incomplete digestion of cell wall was achieved by regulating the incubation time of the enzymatic pretreatment of the microalgal cells. 15.77% increase in lipid content was seen when untreated cells were cultured with biocompatible solvent, while cultivation of these enzymatically pretreated cells with biocompatible solvent, the lipid content increased by 53.33% and 22% higher carotenoid content was observed as compared to conventional extraction. The total fatty acids obtained after 1st and 2nd extractions in untreated samples were 67.82%, while those in enzymatically partially digested samples were 91.94%. The untreated and partially enzymatically predigested strain showed suitable properties for quality biodiesel production as per international recommendations. The cost benefit analysis of the overall process showed the use of biocompatible solvent coupled to enzymatically predigested biomass was a favorable option as compared to conventional extraction.
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Affiliation(s)
- Rashi Vishwakarma
- Applied Microbiology Laboratory, Center for Rural Development and Technology, Indian Institute of Technology- Delhi, New Delhi, 110016, India.
| | - Saptarshi Dey
- Applied Microbiology Laboratory, Center for Rural Development and Technology, Indian Institute of Technology- Delhi, New Delhi, 110016, India
| | - Saurabh Samuchiwal
- Applied Microbiology Laboratory, Center for Rural Development and Technology, Indian Institute of Technology- Delhi, New Delhi, 110016, India
| | - Anushree Malik
- Applied Microbiology Laboratory, Center for Rural Development and Technology, Indian Institute of Technology- Delhi, New Delhi, 110016, India
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3
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Feasibility of packed columns for continuous cloud point extraction with subsequent product recovery. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Fellechner O, Smirnova I. Process design of a continuous biotransformation with in situ product removal by cloud point extraction. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23967] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Oliver Fellechner
- Institute of Thermal Separation Processes Hamburg University of Technology Hamburg Germany
| | - Irina Smirnova
- Institute of Thermal Separation Processes Hamburg University of Technology Hamburg Germany
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5
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Seručnik M, Vicente FA, Brečko Ž, Coutinho JA, Ventura SP, Žnidaršič-Plazl P. Development of a Microfluidic Platform for R-Phycoerythrin Purification Using an Aqueous Micellar Two-Phase System. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2020; 8:17097-17105. [PMID: 33344096 PMCID: PMC7737240 DOI: 10.1021/acssuschemeng.0c05042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/22/2020] [Indexed: 05/14/2023]
Abstract
Temperature-dependent aqueous micellar two-phase systems (AMTPSs) have recently been gaining attention in the isolation of high-added-value biomolecules from their natural sources. Despite their sustainability, aqueous two-phase systems, and particularly AMTPSs, have not been extensively applied in the industry, which might be changed by applying process integration and continuous manufacturing. Here, we report for the first time on an integrated microfluidic platform for fast and low-material-consuming development of continuous protein purification using an AMTPS. A system comprised of a microchannel incubated at high temperature, enabling instantaneous triggering of a two-phase system formation, and a microsettler, allowing complete phase separation at the outlets, is reported here. The separation of phycobiliproteins and particularly the purification of R-phycoerythrin from the contaminant proteins present in the aqueous crude extract obtained from fresh cells of Gracilaria gracilis were thereby achieved. The results from the developed microfluidic system revealed that the fractionation performance was maintained while reducing the processing time more than 20-fold when compared with the conventional lab-scale batch process. Furthermore, the integration of a miniaturized ultrafiltration module resulted in the complete removal of the surfactant from the bottom phase containing R-phycoerythrin, as well as in nearly twofold target protein concentration. The process setup successfully exploits the benefits of process intensification along with the integration of various downstream processes. Further transfer to a meso-scale integrated system would make such a system appropriate for the separation and purification of biomolecules with high commercial interest.
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Affiliation(s)
- Mojca Seručnik
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
| | - Filipa A. Vicente
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Živa Brečko
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
| | - João A.
P. Coutinho
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Sónia P.
M. Ventura
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Polona Žnidaršič-Plazl
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- Chair
of Microprocess Engineering and Technology–COMPETE, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- . Phone: +386 1 479 8572
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Pinheiro N, Assunção P, Rodríguez A, Sanromán MÁ, Deive FJ. Surfactant-assisted disruption and extraction for carotenoid production from a novel Dunaliella strain. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Taubert A, Jakob T, Wilhelm C. Glycolate from microalgae: an efficient carbon source for biotechnological applications. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1538-1546. [PMID: 30637910 PMCID: PMC6662103 DOI: 10.1111/pbi.13078] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/27/2018] [Accepted: 12/21/2018] [Indexed: 06/07/2023]
Abstract
Glycolate is produced in autotrophic cells under high temperatures and Ci -limitation via oxygenation of ribulose-1,5-bisphosphate. In unicellular algae, glycolate is lost via excretion or metabolized via the C2 cycle by consuming reductants, ATP and CO2 emission (photorespiration). Therefore, photorespiration is an inhibitory process for biomass production. However, cells can be manipulated in a way that they become glycolate-producing 'cell factories', when the ratio carboxylation/oxygenation is 2. If under these conditions the C2 cycle is blocked, glycolate excretion becomes the only pathway of photosynthetic carbon flow. The study aims to proof the biotechnological applicability of algal-based glycolate excretion as a new biotechnological platform. It is shown that cells of Chlamydomonas can be cultivated under specific conditions to establish a constant and long-term stable glycolate excretion during the light phase. The cultures achieved a high efficiency of 82% of assimilated carbon transferred into glycolate biosynthesis without losses of function in cell vitality. Moreover, the glycolate accumulation in the medium is high enough to be directly used for microbial fermentation but does not show toxic effects to the glycolate-producing cells.
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Affiliation(s)
- Anja Taubert
- Department of Plant PhysiologyInstitute of BiologyUniversity of LeipzigLeipzigGermany
| | - Torsten Jakob
- Department of Plant PhysiologyInstitute of BiologyUniversity of LeipzigLeipzigGermany
| | - Christian Wilhelm
- Department of Plant PhysiologyInstitute of BiologyUniversity of LeipzigLeipzigGermany
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Fellechner O, Rotzolk S, Smirnova I. Long-Chain Alcohol-Modified Micellar Systems and Their Application in a Continuous Extraction Process. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b04617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oliver Fellechner
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, D-21075 Hamburg, Germany
| | - Sebastian Rotzolk
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, D-21075 Hamburg, Germany
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, D-21075 Hamburg, Germany
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Akbari S, Khoshnood RS, Ahmadabad FK, Pourayoubi M, Dušek M, Shchegravina ES. The (CF 3C(O)NH)(C 6H 5CH 2NH) 2P(O) phosphoric triamide as a novel carrier with excellent efficiency for Cu( ii) in a liquid membrane transport system. RSC Adv 2019; 9:9153-9159. [PMID: 35517695 PMCID: PMC9062073 DOI: 10.1039/c8ra09118h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 02/22/2019] [Indexed: 12/04/2022] Open
Abstract
Transport of Ag(i), Cd(ii), Co(ii), Cu(ii), Ni(ii), Pb(ii) and Zn(ii) cations across a bulk liquid membrane (BLM) containing N,N′-dibenzyl-N′′-(2,2,2-trifluoroacetyl)-phosphoric triamide (PTC) as a new carrier is studied by atomic absorption spectrometry. The results show selective and efficient transport of the copper(ii) cation from aqueous solution in the presence of the other cations. Various factors are optimized in order to obtain maximum transport efficiency. The PTC ligand is characterized by single crystal X-ray diffraction analysis, IR, NMR (19F, 31P, 1H, 13C) and mass spectroscopy. The complex formation reaction between copper(ii) and PTC is studied by a conductometric method, which shows the 1 : 1 stoichiometry for ligand and copper(ii). Selective transport of Cu(ii) cation in the presence of six other cations across a bulk liquid membrane containing a novel phosphoric triamide carrier is studied.![]()
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Affiliation(s)
- Setareh Akbari
- Department of Chemistry
- Mashhad Branch
- Islamic Azad University
- Mashhad
- Iran
| | | | | | - Mehrdad Pourayoubi
- Department of Chemistry
- Faculty of Science
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Michal Dušek
- Institute of Physics of the Czech Academy of Sciences
- Czech Republic
| | - Ekaterina S. Shchegravina
- Department of Chemistry
- Lobachevsky State University of Nizhni Novgorod
- Nizhny Novgorod
- Russian Federation
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Racheva R, Rahlf AF, Wenzel D, Müller C, Kerner M, Luinstra GA, Smirnova I. Aqueous food-grade and cosmetic-grade surfactant systems for the continuous countercurrent cloud point extraction. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.03.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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