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1. Assessment of oxidative balance in hydrophilic cellular environment in Chlorella vulgaris exposed to glyphosate

Author:
Ostera, Juan M.; Malanga, Gabriela; Puntarulo, Susana
Source:
Chemosphere 2020 v.248 pp. 125955
ISSN:
0045-6535
Subject:
Chlorella vulgaris,   etc   ; antioxidant activity; antioxidants; glyphosate; hydrophilicity;     Show all 5 Subjects
Abstract:
... The studied hypothesis is that glyphosate (GLY) can affect the oxidative balance in the hydrophilic intracellular medium in non-target Chlorella vulgaris cells. Analytical GLY (5 μM) and a commercial product (RUP) (5 μM) supplementation, did not affect the growth profile. Neither in latent (Lag) nor in exponential (Exp) phase of development, there were significant differences in the cellular abund ...
DOI:
10.1016/j.chemosphere.2020.125955

2. Finned spacer for enhancing the impact of air bubbles for membrane fouling control in Chlorella vulgaris filtration

Author:
Razak, Nik Nurul Ain Nabilah; Rahmawati, Ratri; Bilad, Muhammad Roil; Pratiwi, Amalia Enggar; Elma, Muthia; Nawi, Normi Izati Mat; Jaafar, Juhana; Lam, Man Kee
Source:
Bioresource technology reports 2020 v.11 pp. 100429
ISSN:
2589-014X
Subject:
Chlorella vulgaris,   etc   ; aeration; air; biomass; bubbles; fouling; harvesting; microalgae; microfiltration;     Show all 9 Subjects
Abstract:
... Membrane filtration offers appreciable promise as an effective process to harvest microalgae biomass but largely limited by membrane fouling. This study proposed a new spacer system for fouling control in Chlorella vulgaris filtration. Results demonstrate the effectiveness of finned spacer in directing the air bubbles toward the membrane surface thus improve their contacts and their foulant remova ...
DOI:
10.1016/j.biteb.2020.100429

3. Chlorella vulgaris heterotrophic colony development and interaction

Author:
Zhang, Jing; Tran, Thi-Bich-Thuy; Taidi, Behnam; Lu, Pin; Perré, Patrick
Source:
Algal research 2020 v.49 pp. 101907
ISSN:
2211-9264
Subject:
Chlorella vulgaris,   etc   ; glucose; image analysis; light microscopes; microscopy;     Show all 5 Subjects
Abstract:
... This study is a first outcome of a series of works on immobilized cultures of Chlorella vulgaris. Colonies were grown independently on solid media under heterotrophic conditions and their growth was followed by continuous three-dimensional microscopy and image analysis. The growth was assessed by 3D imaging using a structured light microscope and subsequent image processing. Based on the expressio ...
DOI:
10.1016/j.algal.2020.101907

4. Enhancing rotifer Brachionus calyciflorus population growth with commercial probiotics

Author:
Contreras‐Tapia, Rubén Alonso; Castellanos‐Páez, María Elena; Nandini, S.; Benítez‐Díaz‐Mirón, Marcela Ivonne; Garza‐Mouriño, Gabriela
Source:
Aquaculture research 2020 v.51 no.5 pp. 2102-2111
ISSN:
1355-557X
Subject:
Chlorella vulgaris,   etc   ; Brachionus calyciflorus; growth performance; population growth; probiotics; Mexico;     Show all 6 Subjects
Abstract:
... The effect of a commercial probiotic (NanoCrusta, Altacrusta, Mexico City, Mexico) on the growth performance of Brachionus calyciflorus Pallas, 1766, was evaluated. In a first approach, probiotics were supplied in four densities (2.0 × 10³, 1.1 × 10⁵, 2.1 × 10⁵ and 2.1 × 10⁶ cells/ml), alone and in combination with Chlorella vulgaris (1 × 10⁶ cells/ml). The test rotifer did not grow on the probiot ...
DOI:
10.1111/are.14561

5. Grazing rates of freshwater copepod Thermocyclops decipiens (Kiefer, 1929) on Chlorella vulgaris under different light intensities

Author:
Kandathil Radhakrishnan, Divya; AkbarAli, Isamma; Thundiparambil Sathrajith, Arunjith; Schmidt, Bjorn V.; Sivanpillai, Sureshkumar; Thazhakot Vasunambesan, Sankar
Source:
Aquaculture 2020 v.525 pp. 735321
ISSN:
0044-8486
Subject:
Chlorella vulgaris,   etc   ; Copepoda; diet; egg production; eggs; feces; fecundity; freshwater; grazing; hatching; light intensity; microalgae; zooplankton;     Show all 13 Subjects
Abstract:
... Light is one of the most important structuring factors for life in aquactic biology. For zooplankton grazers, including copepods, light offers a behavioral dilemma that is potentially present at both small and large scales. We investigated the grazing rate, clearance rate, fecal pellet production rate, egg production rate, percertage of egg hatching and survival percentage of the freshwater copepo ...
DOI:
10.1016/j.aquaculture.2020.735321

6. Co-cultivation of microalgae in aquaculture water: Interactions, growth and nutrient removal efficiency at laboratory- and pilot-scale

Author:
Tejido-Nuñez, Yaiza; Aymerich, Enrique; Sancho, Luis; Refardt, Dominik
Source:
Algal research 2020 v.49 pp. 101940
ISSN:
2211-9264
Subject:
Chlorella vulgaris,   etc   ; Protozoa; Tetradesmus; bacteria; coculture; environmental factors; microalgae; photobioreactors; recirculating aquaculture systems; wastewater; wastewater treatment;     Show all 11 Subjects
Abstract:
... Microalgae biotechnology is of increasing importance and a central application concerns the treatment of wastewater. Here, its implementation in a recirculating aquaculture system (RAS) to lower the discharge of wastewater is studied. To better cope with external variations in culture conditions, a co-cultivation of two species of microalgae, Chlorella vulgaris and Tetradesmus obliquus, was used t ...
DOI:
10.1016/j.algal.2020.101940

7. Microalgae dewatering using a hybrid dead-end/cross-flow forward osmosis system: Influence of microalgae properties, draw solution properties, and hydraulic conditions

Author:
Ma, Cong; Huang, Jingyun; Wang, Liang; Zhao, Bin; Zhang, Zhaohui; Zhang, Hongwei
Source:
Algal research 2020 v.48 pp. 101899
ISSN:
2211-9264
Subject:
Chlorella vulgaris,   etc   ; Fourier transform infrared spectroscopy; biodiesel; biomass; dewatering; fuel production; microalgae; osmosis; pH; water content;     Show all 10 Subjects
Abstract:
... The high energy input required for microalgae dewatering makes biodiesel production economically unfeasible. Forward osmosis, as an energy-efficient method, has gained increasing attention. However, the biomass moisture content obtained by traditional forward osmosis is relatively high, which has a negative influence on the downstream process. In this study, a hybrid dead-end/cross-flow forward os ...
DOI:
10.1016/j.algal.2020.101899

8. Nutrient removal by alginate‐immobilized Chlorella vulgaris: response to different wastewater matrices

Author:
Kube, Matthew; Spedding, Ben; Gao, Li; Fan, Linhua; Roddick, Felicity
Source:
Journal of chemical technology and biotechnology 2020 v.95 no.6 pp. 1790-1799
ISSN:
0268-2575
Subject:
Chlorella vulgaris,   etc   ; algae; ammonium; biomass production; harvesting; inorganic carbon; municipal wastewater; nitrates; nitrogen; nutrient uptake; phosphorus;     Show all 11 Subjects
Abstract:
... BACKGROUND: Immobilized algae are a promising tool to treat wastewater within a short time (<12 h) and simplify biomass harvesting compared with suspended algae. The potential of alginate‐entrapped Chlorella vulgaris to bioremediate secondary (with and without nutrient supplementation), primary and two lagoon municipal wastewaters was investigated. The capability of the system to adapt to these wa ...
DOI:
10.1002/jctb.6377

9. Flocculation behavior and mechanisms of block copolymer architectures on silica microparticle and Chlorella vulgaris systems

Author:
Morrissey, Kathryn L.; Fairbanks, Benjamin D.; Bull, David S.; Stoykovich, Mark P.; Bowman, Christopher N.
Source:
Journal of colloid and interface science 2020 v.567 pp. 316-327
ISSN:
0021-9797
Subject:
Chlorella vulgaris,   etc   ; composite polymers; electrolytes; flocculants; flocculation; microparticles; molecular weight; silica; zeta potential;     Show all 9 Subjects
Abstract:
... Flocculation performance using polyelectrolytes is influenced by critical design parameters including molecular weight, amount and sign of the ionic charge, and polymer architecture. It is expected that systematic variation of these characteristics will impact not only flocculation efficiency (FE) achieved but that charge density and architecture, specifically, can alter the flocculation mechanism ...
DOI:
10.1016/j.jcis.2020.02.001

10. A new reactor design for harvesting algae through electrocoagulation-flotation in a continuous mode

Author:
Parmentier, Dries; Manhaeghe, Dave; Baccini, Luca; Van Meirhaeghe, Rik; Rousseau, Diederik P.L.; Van Hulle, Stijn
Source:
Algal research 2020 v.47 pp. 101828
ISSN:
2211-9264
Subject:
Chlorella vulgaris,   etc   ; aluminum; electrodes; energy; energy requirements; harvesting; iron; microalgae; pH; reproduction;     Show all 10 Subjects
Abstract:
... The low energy requirements to grow microalgae combined with the very fast reproduction gives microalgae unique abilities to utilize them for industrial and environmental applications. However, harvesting these algae still remains energy consuming and, as a consequence, expensive. In this work a new electrocoagulation-flotation set-up with a tubular coaxial reactor, developed by Noah Water Solutio ...
DOI:
10.1016/j.algal.2020.101828

11. Integration of osmotic shock assisted liquid biphasic system for protein extraction from microalgae Chlorella vulgaris

Author:
Krishna Koyande, Apurav; Tanzil, Vera; Murraly Dharan, Haridharan; Subramaniam, Manivarman; Robert, Ryann Noel; Lau, Phei-Li; Khoiroh, Ianatul; Show, Pau-Loke
Source:
Biochemical engineering journal 2020 v.157 pp. 107532
ISSN:
1369-703X
Subject:
Chlorella vulgaris,   etc   ; air flow; alcohols; biomass; cell walls; liquids; microalgae; osmotic stress; permeability; proteins; recycling; solutes;     Show all 12 Subjects
Abstract:
... The aim of this research is to study a sustainable method to recover whole proteins from microalgae Chlorella vulgaris FSP-E using osmotic shock through liquid biphasic flotation (LBF) system. Osmotic shock induces the change in solute concentration around the cell, which results in permeation thus resulting in disruption of cell wall. Various parameters affecting the protein recovery including ty ...
DOI:
10.1016/j.bej.2020.107532

12. The growth suppression effects of UV-C irradiation on Microcystis aeruginosa and Chlorella vulgaris under solo-culture and co-culture conditions in reclaimed water

Author:
Li, Shang; Dao, Guo-Hua; Tao, Yi; Zhou, Ji; Jiang, Hai-Sha; Xue, Yuan-Mei; Yu, Wen-Wen; Yong, Xiao-Lei; Hu, Hong-Ying
Source:
The Science of the total environment 2020 v.713 pp. 136374
ISSN:
0048-9697
Subject:
Chlorella vulgaris,   etc   ; Microcystis aeruginosa; algal blooms; biomass; coculture; irradiation; landscapes; microalgae; photochemistry; ultraviolet radiation; wastewater treatment;     Show all 11 Subjects
Abstract:
... Harmful algal blooms (HABs) are serious problems in landscape waters sourced from reclaimed water. In this study, the suppression effects of UV-C irradiation on microalgal growth were researched to find a possible preventive approach. Microcystis aeruginosa and Chlorella vulgaris were exposed to UV-C irradiation and then cultured in real reclaimed water for 7–18 d. UV-C irradiation at 50–200 mJ cm ...
DOI:
10.1016/j.scitotenv.2019.136374

13. Optimization of alginate bead size immobilized with Chlorella vulgaris and Chlamydomonas reinhardtii for nutrient removal

Author:
Lee, Hyunkuk; Jeong, Dawoon; Im, SungJu; Jang, Am
Source:
Bioresource technology 2020 v.302 pp. 122891
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; Chlamydomonas reinhardtii; alginates; dyes; gels; microalgae; nutrient uptake; photobioreactors; porosity; wastewater treatment;     Show all 10 Subjects
Abstract:
... Photo-bioreactor experiments using three different size beads (2.0, 3.5, and 5.0 mm) immobilized with two different types of microalgae namely Chlorella vulgaris and Chlamydomonas reinhardtii were conducted to evaluate the nutrient removal efficiency. The highest nutrient removal was obtained at gel bead pore size of 3.5 mm for both species of C. vulgaris and Ch. reinhardtii. 95% removal of T-N an ...
DOI:
10.1016/j.biortech.2020.122891

14. Evaluation of membrane fouling mitigation strategies in an algal membrane photobioreactor (AMPBR) treating secondary wastewater effluent

Author:
Fortunato, Luca; Lamprea, Andrés Felipe; Leiknes, TorOve
Source:
The Science of the total environment 2020 v.708 pp. 134548
ISSN:
0048-9697
Subject:
Chlorella vulgaris,   etc   ; advanced wastewater treatment; biofuels; biomass; fertilizers; fouling; microalgae; monitoring; nitrogen; nutrients; photobioreactors; wastewater;     Show all 12 Subjects
Abstract:
... Microalgae-based advanced wastewater treatment has gained momentum due to the possibility of recovering nutrients for the production of fertilizers, biofuels and fine chemicals from microalgal biomass. The objective of this study is to evaluate the effect of different fouling control strategies on the development of Chlorella vulgaris in a membrane photobioreactor (AMPMBR) treating a secondary was ...
DOI:
10.1016/j.scitotenv.2019.134548

15. Chlorella vulgaris broth harvesting via standalone forward osmosis using seawater draw solution

Author:
Nawi, Normi Izati Mat; Arifin, Siti Nor Hidayah M.; Hizam, Shafiq M.; Rampun, Erdina Lulu Atika; Bilad, Muhammad Roil; Elma, Muthia; Khan, Asim Laeeq; Wibisono, Yusuf; Jaafar, Juhana
Source:
Bioresource technology reports 2020 v.9 pp. 100394
ISSN:
2589-014X
Subject:
Chlorella vulgaris,   etc   ; aeration; biofuels; biomass; dewatering; feedstocks; fouling; fuel production; harvesting; microalgae; osmosis; seawater; viability;     Show all 13 Subjects
Abstract:
... Microalgae biomass gains interests for its promising sustainability as feed-stock in biofuels production. However, high-energy cost for biomass cultivation and harvesting must substantially be reduced to enhance its viability. This study evaluates the application of standalone forward osmosis (FO) and aeration as fouling control for Chlorella vulgaris dewatering using seawater as draw solution (DS ...
DOI:
10.1016/j.biteb.2020.100394

16. Synergistic effect of dual flocculation between inorganic salts and chitosan on harvesting microalgae Chlorella vulgaris

Author:
Vu, Hang P.; Nguyen, Luong N.; Lesage, Geoffroy; Nghiem, Long D.
Source:
Environmental technology & innovation 2020 v.17 pp. 100622
ISSN:
2352-1864
Subject:
Chlorella vulgaris,   etc   ; absorbance; aluminum sulfate; chitosan; ferric chloride; flocculants; flocculation; harvesting; microalgae; neutralization; polymers; synergism;     Show all 12 Subjects
Abstract:
... The flocculation efficiency of microalgae Chlorella vulgaris for subsequent harvesting was investigated using single flocculants of inorganic salts, synthetic polymer, chitosan and dual flocculants of inorganic salts and chitosan. Synthetic polymer (FlopamTM) could achieve over 90% optical density removal (OD680removal) at a low flocculant dose (20 to 40 mg polymer per litre of algal suspension) t ...
DOI:
10.1016/j.eti.2020.100622

17. Scale-up of photo-bioreactors for microalgae cultivation by π-theorem

Author:
Paladino, Ombretta; Neviani, Matteo
Source:
Biochemical engineering journal 2020 v.153 pp. 107398
ISSN:
1369-703X
Subject:
Chlorella vulgaris,   etc   ; absorbance; bubbles; carbon dioxide; glycerol; light intensity; microalgae; mixing; models; oxygen; photobioreactors; tanks; wastewater;     Show all 13 Subjects
Abstract:
... Robust microalgae cultivation at industrial scale needs complex scale-up of photobioreactors since the same yields obtained at lab-scale are hardly reached during pilot or industrial production. In this paper we propose a procedure based on Buckingham π-theorem to perform the scale-up of photobioreactors used to cultivate Chlorella Vulgaris fed by CO2 and wastewater rich in glycerol. This theoreti ...
DOI:
10.1016/j.bej.2019.107398

18. Removal of biogenic compounds from the post-fermentation effluent in a culture of Chlorella vulgaris

Author:
Szwarc, Karolina; Szwarc, Dawid; Zieliński, Marcin
Source:
Environmental science and pollution research international 2020 v.27 no.1 pp. 111-117
ISSN:
0944-1344
Subject:
Chlorella vulgaris,   etc   ; Scenedesmus; algae culture; biomass; culture media; microalgae; nitrogen; nutrients; organic carbon; phosphorus; wastewater; whey;     Show all 12 Subjects
Abstract:
... Wastewater rich in organic carbon, nitrogen and phosphorus may serve as a convenient source of carbon and nutrients for a year-long microalgae production. Scientific reports indicate that some single-cell microalgae such as Chlorella and Scenedesmus, are highly tolerant to wastewater environments and efficiently remove biogenic compounds. The aim of this study was to determine the possibility of u ...
DOI:
10.1007/s11356-019-05162-6
PubMed:
31037532
PubMed Central:
PMC6974497

19. Continuous monitoring of growth detects photoperiod-dependent oscillations in growth rates of Chlorella vulgaris

Author:
Hollis, Lauren; Trick, Charles G.; Hüner, Norman P.A.
Source:
Botany 2020 v.98 no.2 pp. 103-115
ISSN:
1916-2804
Subject:
Chlorella vulgaris,   etc   ; DNA; absorbance; chlorophyll; diurnal variation; fluorescence; metabolism; monitoring; photobioreactors; photons; photophase; starch;     Show all 12 Subjects
Abstract:
... The green alga Chlorella vulgaris Beij. exhibits minimal capacity to adjust exponential growth rates in response to photon flux density (PFD) when monitored on a discontinuous basis. We hypothesized that modulation of maximum growth rates in C. vulgaris by PFD is a photoperiod-dependent phenomenon. The use of the photobioreactors to monitor continuous growth allowed us to detect repetitive daily o ...
DOI:
10.1139/cjb-2019-0116

20. Exploring fermentation strategies for enhanced lactic acid production with polyvinyl alcohol-immobilized Lactobacillus plantarum 23 using microalgae as feedstock

Author:
Chen, Po-Ting; Hong, Zih-Syuan; Cheng, Chieh-Lun; Ng, I-Son; Lo, Yung-Chung; Nagarajan, Dillirani; Chang, Jo-Shu
Source:
Bioresource technology 2020 v.308 pp. 123266
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; Lactobacillus plantarum; batch fermentation; carbon; continuous fermentation; feedstocks; glucose; hydrolysates; immobilized cells; ion exchange; lactic acid; microalgae;     Show all 12 Subjects
Abstract:
... Lactic acid (LA) fermentation was conducted with suspended and immobilized cells of an isolated Lactobacillus plantarum 23 strain using various fermentation strategies. Glucose and an alternative, relatively inexpensive carbon source - the hydrolysate of microalga Chlorella vulgaris ESP-31, were used as the carbon source. Batch fermentation using immobilized cells of L. plantarum 23 could enhance ...
DOI:
10.1016/j.biortech.2020.123266