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- Author:
- Ross, Michael E.; Stanley, Michele S.; Day, John G.; Semião, Andrea J.C.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2925-2936
- ISSN:
- 0921-8971
- Subject:
- biomass; macroalgae; nitrates; physiology; pressing
- Abstract:
- ... The determination of rates of macroalgal growth and productivity via temporal fresh weight (FW) measurements is attractive, as it does not necessitate the sacrifice of biomass. However, there is no standardised method for FW analysis; this may lead to potential discrepancies when determining growth rates or productivity and make literature comparison problematic. This study systematically assessed ...
- DOI:
- 10.1007/s10811-017-1157-8
- PubMed:
- 29213184
- PubMed Central:
- PMC5705739
-
http://dx.doi.org/10.1007/s10811-017-1157-8
- Author:
- Nobre, A. M.; Valente, L. M. P.; Neori, A.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3039-3055
- ISSN:
- 0921-8971
- Subject:
- Ulva; aquaculture industry; aquaculture systems; economic sustainability; farmers; macroalgae; models; nitrogen; planning; surveys; user interface
- Abstract:
- ... Key factors affecting the economic sustainability of any aquaculture industry and in particular the seaweed industry are its ecological interactions and impacts. Understanding these issues requires an extended production analysis and simulation, given the natural variability and dynamics of external factors that affect those interdependencies. As such, making sense of production data is required f ...
- DOI:
- 10.1007/s10811-017-1164-9
-
http://dx.doi.org/10.1007/s10811-017-1164-9
- Author:
- Eze, Chijioke N.; Ogbonna, James C.; Ogbonna, Innocent O.; Aoyagi, Hideki
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2745-2754
- ISSN:
- 0921-8971
- Subject:
- Desmodesmus; biomass; carbon; glucose; glycerol; lipids; liquids; photobioreactors; potato starch; starch; tap water; Nigeria
- Abstract:
- ... The aim of this study was to construct a novel photobioreactor with improved mixing and light supply efficiencies. A 4-L flat panel airlift photobioreactor with inclined broth circulation guide installed in the downcomer column was constructed. The circulation time (θ c) and mixing time (θ ₘ) were determined, using the solid flow follower technique and dye method, respectively. The circulation flu ...
- DOI:
- 10.1007/s10811-017-1153-z
-
http://dx.doi.org/10.1007/s10811-017-1153-z
- Author:
- Pirian, Kiana; Moein, Soheila; Sohrabipour, Jelveh; Rabiei, Reza; Blomster, Jaanika
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3151-3159
- ISSN:
- 0921-8971
- Subject:
- Rhodophyta; Sargassum; alpha-amylase; antioxidant activity; antioxidants; enzyme inhibition; ethyl acetate; inhibitory concentration 50; macroalgae; methanol; noninsulin-dependent diabetes mellitus; solvents; Persian Gulf
- Abstract:
- ... The inhibition of pancreatic α-amylase and the prevention of pancreatic oxidative damage are considered possible strategies for the management of type 2 diabetes. The aim of our study was to evaluate in vitro the antioxidant properties and α-amylase inhibition of ten brown and red macroalgal species from the Persian Gulf. The α-amylase inhibition was tested using the chromogenic dinitrosalicylic a ...
- DOI:
- 10.1007/s10811-017-1152-0
-
http://dx.doi.org/10.1007/s10811-017-1152-0
- Author:
- Alavi, Nasireh; Golmakani, Mohammad-Taghi
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2971-2978
- ISSN:
- 0921-8971
- Subject:
- storage conditions; butylated hydroxytoluene; algae; olive oil; alpha-tocopherol; oxidative stability; Arthrospira platensis; bioactive compounds; oxidation; antioxidant activity; antioxidants; protective effect
- Abstract:
- ... The antioxidant activity of whole-cell Spirulina (Arthrospira platensis) powder was assessed in olive oil at different concentrations of 0.5, 1.0, and 1.5% during accelerated storage. Also, antioxidant activity of Spirulina was compared with that of α-tocopherol and butylated hydroxytoluene (BHT). Spirulina samples exhibited lower primary, secondary, and total oxidation products than the control. ...
- DOI:
- 10.1007/s10811-017-1190-7
-
http://dx.doi.org/10.1007/s10811-017-1190-7
- Author:
- Moreira, Ramón; Sineiro, Jorge; Chenlo, Francisco; Arufe, Santiago; Díaz-Varela, Diego
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3191-3200
- ISSN:
- 0921-8971
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Ascophyllum nodosum; air drying; antioxidant activity; carbohydrate content; color; drying temperature; freeze drying; macroalgae; milling; particle size; particle size distribution; powders; ultrasonic treatment
- Abstract:
- ... The purpose of this study was to determine the effects of convective air-drying at different temperatures (35, 50, 60 and 75 °C) on the colour and particle size distribution of Ascophyllum nodosum seaweed powders obtained after milling (mesh 500 μm). The antioxidant activity and polyphenolic and carbohydrate content of the aqueous extracts obtained by ultrasound-assisted extraction from air-dried ...
- DOI:
- 10.1007/s10811-017-1159-6
-
http://dx.doi.org/10.1007/s10811-017-1159-6
- Author:
- Luís, Ana T.; Hlúbiková, Daša; Vaché, Véronique; Choquet, Patrick; Hoffmann, Lucien; Ector, Luc
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2989-3001
- ISSN:
- 0921-8971
- Subject:
- Amphipleura; atomic force microscopy; image analysis; mechanical properties; microorganisms; mucilages; taxonomy; ultrastructure
- Abstract:
- ... Atomic force microscopy (AFM) allows high image resolution, based on slight differences in surface height and on imaging transparent structures, thus, is an excellent type of microscopy for imaging nano-sized objects, such as diatoms. Currently and since 1992, the number of publications applying AFM on diatom studies has increased significantly. Our study considers different aspects related with A ...
- DOI:
- 10.1007/s10811-017-1177-4
-
http://dx.doi.org/10.1007/s10811-017-1177-4
- Author:
- Higashi, Aiko; Nagai, Satoshi; Salomon, Paulo S.; Ueki, Shoko
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2961-2969
- ISSN:
- 0921-8971
- Subject:
- Raphidophyceae; coasts; geographical distribution; latitude; mitochondria; mitochondrial genes; mitochondrial genome; open reading frames; phylogeography; poisonous algae; provenance; sequence analysis; transcription (genetics); Brazil; Japan; North America; Singapore
- Abstract:
- ... Information related to geographical distribution and local strain composition is essential to an understanding of the dynamics of harmful algae in the environment. Previously, we identified a highly variable segment on the mitochondrial genome of Heterosigma akashiwo, a bloom-forming noxious unicellular algal species. Here, we assessed the utility of the mitochondrial hypervariable region for the ...
- DOI:
- 10.1007/s10811-017-1142-2
-
http://dx.doi.org/10.1007/s10811-017-1142-2
- Author:
- Tao, Ran; Kinnunen, Viljami; Praveenkumar, Ramasamy; Lakaniemi, Aino-Maija; Rintala, Jukka A.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2845-2856
- ISSN:
- 0921-8971
- Subject:
- Chlorella vulgaris; Scenedesmus; ammonium; anaerobic digesters; anaerobic digestion; biofuels; biomass production; biorefining; carbohydrate content; industrial wastewater treatment; liquids; microalgae; municipal wastewater; phosphates; pulp and paper industry; sludge; total suspended solids
- Abstract:
- ... Two microalgae, Chlorella vulgaris and Scenedesmus acuminatus, were batch cultivated separately in two types of diluted liquid digestates. The first digestate (ADPP) was obtained from a mesophilic laboratory digester treating biosludge from a pulp and paper industry wastewater treatment plant. The second digestate (ADMW) was collected from a full-scale mesophilic anaerobic digester treating-mixed ...
- DOI:
- 10.1007/s10811-017-1175-6
-
http://dx.doi.org/10.1007/s10811-017-1175-6
- Author:
- Birungi, Z. S.; Chirwa, E. M. N.; Botai, O. J.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2899-2910
- ISSN:
- 0921-8971
- Subject:
- Desmodesmus; adsorption; binding sites; biosorbents; biosorption; cadmium; correlation; desorption; environmental factors; eutrophication; freshwater; lanthanum; metal ions; models; sorption isotherms; thallium; toxicity; wastewater
- Abstract:
- ... The presence of competing metals in industrial wastewater creates problems of selectivity for binding sites during biosorption of cationic metallic species on microbial cell surfaces. For this reason, modelling of adsorption and uptake of multimetal solutions based on observation of performance of single metal species since this neglects the competition for reactive sites typical in multimetal sol ...
- DOI:
- 10.1007/s10811-017-1197-0
-
http://dx.doi.org/10.1007/s10811-017-1197-0
- Author:
- Shaaban, Abd El-Salam M.; Badawy, Reham K.; Mansour, Hoda A.; Abdel-Rahman, Mohamed E.; Aboulsoud, Yasmin I. E.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3221-3234
- ISSN:
- 0921-8971
- Subject:
- Fourier transform infrared spectroscopy; Gelidium; Ulva lactuca; algae; aluminum; aqueous solutions; biomass; biosorption; cell walls; chromium; cobalt; copper; endothermy; industrial effluents; iron; manganese; models; molybdenum; nickel; pH; roughness; scanning electron microscopy; sorption isotherms; temperature; thermodynamics; vanadium; zinc; Egypt
- Abstract:
- ... Three marine algal biomasses, namely Gelidium latifolium (Grev.) Bornet et Thuret, Ulva lactuca Linnaeus and Colpomenia sinuosa (Mertens et Roth) Derbes et Solier, were used in their raw dried forms to biosorb Al³⁺, Fe³⁺, and Zn²⁺ from aqueous solutions. The optimum biosorption conditions were initial element concentration, 1000 mg L⁻¹; temperature, 40 °C; contact time, 1 h; pH, 4, 3, and 6 for Al ...
- DOI:
- 10.1007/s10811-017-1185-4
-
http://dx.doi.org/10.1007/s10811-017-1185-4
- Author:
- Ganesan, M.; Monisha, N.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3029-3037
- ISSN:
- 0921-8971
- Subject:
- Nereididae; animals; biomass production; body weight; crop losses; food consumption; grazing intensity; laboratory experimentation; macroalgae
- Abstract:
- ... Laboratory experiments and outplanting were conducted to understand the consumption of the economically important carrageenophyte Sarconema filiforme by the polychaete Platynereis insolita. When S. filiforme was outplanted, the harvested biomass reached its lowest value (0.56 ± 0.12 kg fresh wt m⁻²) when the polychaete density showed its highest abundance (10 individuals per g fresh wt of alga), i ...
- DOI:
- 10.1007/s10811-017-1182-7
-
http://dx.doi.org/10.1007/s10811-017-1182-7
- Author:
- Lauceri, Rosaria; Austoni, Martina; Caviglia, Francesca; Kamburska, Lyudmila; Lami, Andrea; Morabito, Giuseppe; Pflueger, Valentin; Benavides, Ana Margarita Silva; Tonolla, Mauro; Torzillo, Giuseppe; Riccardi, Nicoletta
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2979-2988
- ISSN:
- 0921-8971
- Subject:
- Cyanobacteria; Unio; algal blooms; diodes; drinking water; enzyme-linked immunosorbent assay; freshwater; high performance liquid chromatography; human health; matrix-assisted laser desorption-ionization mass spectrometry; microcystins; monitoring; rapid methods; risk management; surface water; water reservoirs; water supply
- Abstract:
- ... Microcystins produced by freshwater cyanobacteria pose serious threats to human health and are a growing problem in drinking water supplies worldwide. Toxin detection and identification in water reservoirs when cyanobacterial density is still low is a key step to predict harmful algal blooms and to allow the safe use of the resource. For this purpose, developing sensitive and rapid methods of anal ...
- DOI:
- 10.1007/s10811-017-1193-4
-
http://dx.doi.org/10.1007/s10811-017-1193-4
- Author:
- Bruhn, Annette; Janicek, Tina; Manns, Dirk; Nielsen, Mette Møller; Balsby, Thorsten Johannes Skovbjerg; Meyer, Anne S.; Rasmussen, Michael Bo; Hou, Xiaoru; Saake, Bodo; Göke, Cordula; Bjerre, Anne Belinda
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3121-3137
- ISSN:
- 0921-8971
- Subject:
- Laminaria; Saccharina latissima; bioactive properties; biomass; chemical composition; ecotypes; environmental factors; fucoidan; industry; interspecific variation; laboratory experimentation; light intensity; macroalgae; nutrient availability; salinity; seasonal variation; North Sea
- Abstract:
- ... Fucoidans are sulphated fucose-rich polysaccharides predominantly found in the cell walls of brown algae. The bioactive properties of fucoidans attract increasing interest from the medico-pharmaceutical industries and may drive an increase in demand of brown algae biomass. In nature, the biochemical composition of brown algae displays a seasonal fluctuation driven by environmental factors and endo ...
- DOI:
- 10.1007/s10811-017-1204-5
- PubMed:
- 29213185
- PubMed Central:
- PMC5705760
-
http://dx.doi.org/10.1007/s10811-017-1204-5
- Author:
- Sterner, Martin; Ribeiro, Mauricio Sodré; Gröndahl, Fredrik; Edlund, Ulrica
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3175-3189
- ISSN:
- 0921-8971
- Subject:
- Saccharina latissima; acid deposition; algae; alginates; biomass; cations; chelating agents; energy; fractionation; greenhouse gas emissions; ion exchange resins; life cycle assessment; molecular weight; sodium citrate; solubility; uronic acids; water utilization
- Abstract:
- ... A new approach to process Saccharina latissima algal biomass was developed using sodium citrate and a polyvalent cation-specific resin to sequentially extract the alginate into several usable fractions. The fractionation was performed in a cyclic manner, utilizing a stepwise removal of the native polyvalent ions present in the algae to isolate fractions of alginate with different solubility in the ...
- DOI:
- 10.1007/s10811-017-1176-5
- PubMed:
- 29213186
- PubMed Central:
- PMC5705741
-
http://dx.doi.org/10.1007/s10811-017-1176-5
- Author:
- Mortensen, Leiv M.
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 3067-3075
- ISSN:
- 0921-8971
- Subject:
- Laminaria; Saccharina latissima; brackish water; carbon dioxide; freezing point; freshwater; light intensity; macroalgae; runoff; salinity; salt tolerance; sporophytes
- Abstract:
- ... The Norwegian fjords are strongly influenced by freshwater runoff from the mountain regions as a result of high precipitation. The macroalgae growing in the fjords may therefore be frequently exposed to low salinity levels. This may affect the potential for cultivating kelp in the fjords. In the present study, the sensitivity to salinity levels of 10, 16, 24 or 34‰ was studied by measuring the car ...
- DOI:
- 10.1007/s10811-017-1183-6
-
http://dx.doi.org/10.1007/s10811-017-1183-6
- Author:
- Donner, Antje; Ryšánek, David; Mikhailyuk, Tatiana; Karsten, Ulf
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2911-2923
- ISSN:
- 0921-8971
- Subject:
- Klebsormidium; algae; arid lands; arid zones; biological soil crusts; ecophysiology; genotype; habitats; microorganisms; photoinhibition; photons; photosystem II; phylogeny; plasticity; plateaus; rehydration; ribulose-bisphosphate carboxylase; temperature; United States
- Abstract:
- ... Biological soil crusts (BSCs) represent a micro-ecosystem consisting of various microorganisms including algae in drylands worldwide. The green algal genus Klebsormidium is a typical member of such communities, and because of its filamentous morphology and sticky cells, it plays an ecological key role in the stabilization of soil surfaces. In the present study, we investigated for the first time t ...
- DOI:
- 10.1007/s10811-017-1158-7
-
http://dx.doi.org/10.1007/s10811-017-1158-7
- Author:
- Stramarkou, Marina; Papadaki, Sofia; Kyriakopoulou, Konstantina; Krokida, Magdalini
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2947-2960
- ISSN:
- 0921-8971
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Chlorella vulgaris; bioactive compounds; biofuels; biomass; carotenoids; chlorophyll; cosmetics; drugs; ethanol; freeze drying; high performance liquid chromatography; industrial applications; microalgae; microorganisms; protein content; raw materials; solvents; ultraviolet-visible spectroscopy
- Abstract:
- ... Microalgae and especially green algae are microorganisms that are used in a wide range of industrial applications of high economic interest, such as fish farming, food, cosmetics, pharmaceuticals, and biofuel. In this study, the green microalga Chlorella vulgaris was examined as raw material for the recovery of bioactive compounds and the production of multifunctional extracts. Firstly, the drying ...
- DOI:
- 10.1007/s10811-017-1181-8
-
http://dx.doi.org/10.1007/s10811-017-1181-8
- Author:
- Zhang, Kun; Zheng, Jiahui; Xue, Daling; Ren, Difeng; Lu, Jun
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2783-2788
- ISSN:
- 0921-8971
- Subject:
- Chlorella vulgaris; Rhodotorula glutinis; biodiesel; biomass; coculture; fatty acid composition; fuel production; microalgae; microbial growth; oleic acid; palmitic acid; wastewater; yeasts
- Abstract:
- ... The photoautotrophic co-culture of Chlorella vulgaris and the yeast Rhodotorula glutinis (MP culture) from industrial wastewater was investigated. Cell numbers, biomass, lipid production, and fatty acid content were measured. Owing to co-culture interaction with yeast and microalgae, the MP culture resulted in the highest number of cells (27.73 × 10⁵ cells mL⁻¹) and biomass (0.808 g L⁻¹). Lipid pr ...
- DOI:
- 10.1007/s10811-017-1168-5
-
http://dx.doi.org/10.1007/s10811-017-1168-5
- Author:
- Xu, Jiahui; Fan, Xiaoji; Li, Xingxing; Liu, Guanfu; Zhang, Zhenyan; Zhu, Youchao; Fu, Zhengwei; Qian, Haifeng
- Source:
- Journal of applied phycology 2017 v.29 no.6 pp. 2801-2810
- ISSN:
- 0921-8971
- Subject:
- Phaeodactylum tricornutum; biodiesel; developmental stages; energy; fatty acid composition; fatty acids; fuel production; genes; glycolysis; metabolomics; microalgae; raw materials; salicylic acid; transcription (genetics)
- Abstract:
- ... Microalgae possess great potential for use as raw materials for biofuel production. The marine diatom Phaeodactylum tricornutum accumulates lipids as its major form of energy storage when grown under specific conditions. This study investigated the effects of salicylic acid (SA) on the accumulation of fatty acids in P. tricornutum in the stationary growth phase. Our results showed that 40 μM SA in ...
- DOI:
- 10.1007/s10811-017-1191-6
-
http://dx.doi.org/10.1007/s10811-017-1191-6