An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
... A novel purification process developed by stirred fluidized bed adsorption (SFBA) chromatography was employed to directly purify C-phycocyanin (C-PC) from highly turbid Spirulina platensis. The SFBA column and STREAMLINE Phenyl adsorbent were used in the purification process. The method development was based on the scouting experiments performed in small packed beds. The purification of C-PC by SF ...
... This study aimed to develop a method to rapidly quantify biomolecules in Spirulina platensis. Fourier transform infrared (FTIR) spectra of Spirulina cells were modeled from the individual spectra of glucose, bovine serum albumin and glycerol tripalmitate standards by iterative spectral subtraction and addition methods in accordance with the Beer-Lambert's law. Multipoint regression and partial lea ...
... The aim of presented work is to estimate remediation potential of the blue-green alga Spirulina (Spirulina platensis), in particular, its ability to uptake 2,4,6-trinitrotoluene (TNT) that is one of the most widely used military high explosive and a dangerous pollutant of the environment. The obtained results show that Spirulina has high ability to adsorb TNT, and the uptake of TNT and/or its meta ...
... BACKGROUND: The aim of this study was to analyze the response of selected components of the immune system in rowers to maximal physical exercise, and to verify if this response can be modulated by supplementation with spirulina (cyanobacterium Spirulina platensis). METHOD: The double-blind study included 19 members of the Polish Rowing Team. The subjects were randomly assigned to the supplemented ...
... After decades of ‘living dangerously’, the human kind has paused to think of Mother Nature. Alternate energy sources are being developed as a part of this realization. The use of indigenous sources of nutrients would considerably bring down the cost of production. A mixed consortium of Chlorella vulgaris, Arthrospira platensis, and tap water-originated Scenedesmus dimorphus was cultured using natu ...
... The pyrolysis kinetics of the microalgae Chlorella vulgaris (CV), Isochrysis galbana (IG), Nannochloropsis gaditana (NG), Nannochloropsis limnetica (NL), Phaeodactylum tricornutum (PT), and Spirulina platensis (SP) were studied by non-isothermal thermogravimetric analysis conducted at nine different constant heating rates. The kinetic parameters of each microalgae species were calculated using sev ...
... Spirulina platensis (SP) is a traditionally used microalga for a wide range of pharmacological activities, including amelioration of heavy metals and pesticides toxicity. This study evaluated the antioxidant and organoprotective effects of SP against diazinon (DZN)-induced subacute toxicity on the blood, heart, liver, and kidneys of male Wistar albino rats. Diazinon (20 mg/kg, subcutaneous) was ad ...
... 1. This work investigates the apparent metabolisable energy (AME), its nitrogen-corrected form (AMEn) and amino acid (AA) digestibility coefficients of the microalgae Spirulina platensis as an ingredient in broiler chicken diets. 2. One group of birds was fed with a basal control diet (BD), and another was fed with a test diet composed of the BD with the addition of the microalgae at a proportion ...
... Since cultivations of Arthrospira platensis have a high water demand, it is necessary to develop treatment methods for reusing the exhausted medium that may prevent environmental problems and obtaining useful biomass. The exhausted Schlösser medium obtained from A. platensis batch cultivation in bench-scale mini-tanks was treated by varying concentrations of different coagulants, ferric chloride ( ...
... The aim of the present investigation was to study the effect of Arthrospira (Spirulina) platensis supplemented diet on follicular development and related endocrine parameters, such as estradiol and progesterone levels as well as ghrelin levels in pre-pubertal gilts. Twenty-one 60-day-old Danube White gilts, randomly divided in three groups—control and two experimental—were involved in the experime ...
... A two-stage continuous fermentative hydrogen and methane co-production using macro-algae (Laminaria digitata) and micro-algae (Arthrospira platensis) at a C/N ratio of 20 was established. The hydraulic retention time (HRT) of first-stage H2 reactor was 4 days. The highest specific hydrogen yield of 55.3 mL/g volatile solids (VS) was obtained at an organic loading rate (OLR) of 6.0 gVS/L/d. In the ...
blood serum; interferon-gamma; brain; interleukin-6; signs and symptoms (animals and humans); enzyme-linked immunosorbent assay; mice; sclerosis; animal models; encephalitis; Arthrospira platensis; patients; quality of life; transmission electron microscopy; oral administration; spinal cord; oxidative stress; rats
Abstract:
... The only three oral treatments currently available for multiple sclerosis (MS) target the relapsing forms of the disease and concerns regarding efficacy, safety and tolerability limit their use. Identifying novel oral disease-modifying therapies for MS, targeting both its inflammatory and neurodegenerative components is still a major goal.The scope of this study was to provide evidence that the or ...
... Spirulina (Arthrospira) platensis is the most commonly produced microalgae for commercial applications, such as nutraceuticals and feed. While crop productivity of commercial Spirulina farms is often compromised by grazers and contaminating microzooplanktons, the biodiversity and identity of the most harmful microzooplanktons in Spirulina farms have not been extensively studied. As China is the nu ...
... Microalgae have the ability to utilize nutrients from wastewater and use it for biomass production. The effluent from a biogas process was tested as a nutrient source for blue-green microalga Arthrospira platensis cultivation and compared with conventional synthetic medium. Cultivation was carried out in four different concentrations of industrial process water (25, 50, 75, and 100%). The biomass ...
Arthrospira platensis; active ingredients; bioactive properties; bioassays; biomass; cytokinins; enzymatic hydrolysis; foliar application; humans; hydrolysates; hydrolysis; leaves; lettuce; microalgae; protein sources; raw materials; seedling growth; seedlings; spermine; vegetable growing
Abstract:
... Developing new and natural sources of plant growth promotors is essential to ensure the safe and sustainable production of vegetables for human consumption. In recent years, the potential of microalgae as plant biostimulants has been investigated. Arthrospira platensis (Spirulina platensis) biomass is a recognized protein source and its enzymatic hydrolysis contains molecules such as polyamines wi ...
... C-Phycocyanin (C-PC), a kind of blue protein isolated from Spirulina platensis, can ameliorate hyperglycemia, but its effects on gluconeogenesis and glycogenesis are unknown. In the present study, we investigated the effects and underlying mechanisms of C-PC on gluconeogenesis and glycogenesis in insulin resistant hepatocytes. Insulin resistance was induced by high glucose (HG) in human hepatocell ...
... Carbon dioxide (CO₂) recovery with high alkalinity microalgal culture is expected to be an energy-efficient and environmentally friendly process. To increase the CO₂ recovery efficiency, selection of rapidly growing alkalihalophilic microalgae is necessary. This study optimized the culture conditions of three species of alkalihalophilic microalgae, Arthrospira platensis, Dunaliella salina, and Euh ...
Arthrospira platensis; biomass; carotenoids; chemical composition; chlorophyll; fluorescence; heavy metals; ions; microalgae; photosynthesis; phycocyanin; polyunsaturated fatty acids; wastewater; zinc
Abstract:
... In this study, the effect of various initial Zn²⁺ concentration additionally on microalgae growth and biochemical composition were investigated. The Spirulina platensis biomass of each concentration reached the maximum at the end of the cultivation. However, high levels could severely inhibit the growth of microalgae. Fluorescence activity occurred changes in response to heavy metal stress. Moreov ...
... We developed an easy-to-use method for the routine analysis of the central metabolism using an affordable low-resolution GC–MS system run in SIM mode. The profiling approach was optimized for the derivatization protocol of some 60 targeted metabolites. The performance of two silylation reagents (MSTFA and BSTFA) that allowed the comprehensive derivatization of 42 key intermediary metabolites of th ...
... One hundred chickens of 1-day age were divided randomly into five groups of 20 birds each. Group I was kept as control, group II was fed with 0.2% Spirulina platensis powder only till 90th day post-treatment (DPT). Group III was administered 1.6-ppm cadmium. Groups IV and V were administered 1.61-ppm cadmium in triple glass distilled water along with S. platensis powder orally in standard recommen ...
... Chronic airway inflammation is the key process of bronchial asthma which is a serious disease harmful to human health. This study demonstrated the pharmacological effects of the combination of fish oil and ethanol extract of Spirulina platensis (CFS) on alleviation of asthma induced by ovalbumin (OVA) in mice. BALB/c mice were divided into 6 groups: normal, model, 1 mg/kg of dexamethasone, 0.4, 0. ...
energy use and consumption; phycocyanin; Arthrospira platensis; fluorescent lamps; economic feasibility; nitrates; health services
Abstract:
... C-phycocyanin (C-PC) produced from Spirulina platensis is of great commercial interest due to its healthcare properties. In this study, light sources and light-dark frequency were manipulated to enhance C-PC productivity of S. platensis. Using white LED resulted in higher C-PC production efficiency when compared to using fluorescent lamps and monochromatic LEDs. Proper adjustment of light-dark eff ...
... Wastewater, containing vanadium, uranium, and lanthanum are produced by mining, nuclear, and other industries. Bacteria Pseudomonas putida, Halomonas mono, and cyanobacterium Spirulina platensis were used for lanthanum, vanadium, and uranium, removal from aqueous solutions by means of biosorption and bioreduction processes. A rapid rate of metal adsorption was observed within the first 5–15 min of ...
... Zinc is an essential micronutrient for many organisms, and it is known to enhance abiotic stress tolerance in various plant species. However, the effect of zinc on temperature stress and physiological changes in the cyanobacterium Arthrospira platensis are unknown. In this paper, physiological and comparative proteomic experiments were conducted to investigate the ameliorative effects of exogenous ...
Tom M.M. Bernaerts; Lore Gheysen; Clare Kyomugasho; Zahra Jamsazzadeh Kermani; Stéphanie Vandionant; Imogen Foubert; Marc E. Hendrickx; Ann M. Van Loey
... Microalgae are rich in several nutritional and health-beneficial components, showing great potential as functional food ingredients. To this extent, knowledge of the biomass composition is essential in the selection of suitable microalgae species for specific food applications. Surprisingly, although cell wall polysaccharides are generally reported to play a role in functionality, limited attentio ...
... Circadian rhythm is an important endogenous biological signal for sustainable growth and development of cyanobacteria in natural ecosystems. Circadian effects of photosynthetically active radiation (PAR), ultraviolet-A (UV-A) and ultraviolet-B (UV-B) radiations on pigment composition have been studied in the cyanobacterium Spirulina platensis under light (L)/dark (D) oscillation with a combination ...
Arthrospira platensis; biorefining; case studies; energy; fluid mechanics; industry; microalgae; pulsed electric fields; ultrasonics
Abstract:
... Pulsed electric field (PEF) is an emerging nonthermal technique with promising applications in microalgae biorefinery concepts. In this work, the flow field in continuous PEF processing and its influencing factors were analyzed and energy input distributions in PEF treatment chambers were investigated. The results were obtained using an interdisciplinary approach that combined multiphysics simulat ...
Arthrospira platensis; Spirulina; consumer attitudes; consumer surveys; flavor; human nutrition; interviews; models; new products; novel foods; pasta; product development; protein sources; sensory evaluation; sushi
Abstract:
... The world population is steadily growing and the demand for protein increases along with it, yet our planetary resources are finite. Spirulina (Arthrospira platensis) is an underutilized protein source suitable for human nutrition, and little is known about the use of spirulina as a food and the associated consumer opinion. New product development (NPD) requires early and active participation of c ...
... Dairy cattle treated wastewaters are potential resources for production of microalgae biofuels. A study was conducted to evaluate the capability of Arthrospira platensis cultivated in dairy farm wastewater for biodiesel production. The biomass of Arthrospira platensis was found to be 4.98 g L⁻¹ and produced 30.23 wt% lipids to dry biomass cultivated in wastewater which was found nitrogen stressed ...
Giorgia La Barbera; Michela Antonelli; Chiara Cavaliere; Gabriele Cruciani; Laura Goracci; Carmela Maria Montone; Susy Piovesana; Aldo Laganà; Anna Laura Capriotti
Arthrospira platensis; Spirulina; case studies; chromatography; computer software; databases; glycolipids; mass spectrometry; microalgae; pH; phospholipids; screening
Abstract:
... The work describes the chromatographic separation optimization of polar lipids on Kinetex-EVO, particularly focusing on sulfolipids in spirulina microalgae (Arthrospira platensis). Gradient shape and mobile-phase modifiers (pH and buffer) were tested on lipid standards. Different conditions were evaluated, and resolution, peak capacity, and peak shape were calculated both in negative mode, for sul ...
... PSI trimer to monomer ratio in intact cyanobacterial cells and isolated thylakoids was analysed by two noninvasive, in vivo methods; low-temperature fluorescence emission and circular dichroism spectroscopy. We measured fluorescence emission spectra of cells upon chlorophyll (Chl, 436 nm) excitation. All three species – Synechocystis sp. PCC 6803, Anabaena sp. PCC 7120, and Spirulina platensis – s ...
... A sequential process for the recovery and purification of multiple products was used on a mixture of algal biomass comprised of Spirulina platensis (Arthrospira platensis) and Dunaliella salina. Activated charcoal was selected as the best adsorbent for phycocyanin recovery and purity in the discrete step product recovery studies based on adsorption coefficients of Langmuir (qₘ: 0.16 g/g) and Freun ...
... To date, the main source for phycocyanin production is the thermophilic cyanobacterium Spirulina platensis, although latest researches are exploring the possibility to exploit the thermoacidophilic Cyanidiophyceae (Rhodophyta) to this purpose. Galdieria phlegrea is a polyextremophilic red alga belonging to Cyanidiophyceae, colonizing, along with G. sulphuraria, acidic and thermal environments and ...
... BACKGROUND: The cyanobacterium Arthrospira platensis shows promise as a carbohydrate feedstock for biofuel production. The glycogen accumulated in A. platensis can be extracted by lysozyme-degrading the peptidoglycan layer of the bacterial cell walls. The extracted glycogen can be converted to ethanol through hydrolysis by amylolytic enzymes and fermentation by the yeast Saccharomyces cerevisiae. ...
... The use of microalgae for nutraceuticals, food, and feed has recently gained great interest. Having a good understanding of the trends, including the diurnal variations, of the physiological parameters and biochemical composition of the biomass in commercial scale systems is of high importance as it may lead to finding potential ways to optimize productivity and product quality. Not much is known ...
... Hydrothermal liquefaction (HTL) of microalgae produces high amount of water-insoluble organic compounds, the biocrude oil. Using high-growth-rate Spirulina platensis as feedstock, product fraction distribution and biocrude oil chemistry from HTL at a temperature of 240–300 °C under acidic, neutral and alkaline condition were studied. Positive effects on biocrude oil yield were only found with KOH ...
... The present Present experiment was conducted for 75 days in triplicates groups in 18 aquaria of 50 L each to study the effect of Wolffia arrhiza and Spirulina platensis on growth and pigmentation of Botia dario. Six isonitrogenous diets were prepared with 350 g/kg crude protein (CP) level. Diet 1 (T1) was prepared without fortification of spirulina and wolffia. T2 diet was prepared with spirulina ...
... The present study evaluated the potential modulatory effect(s) of dietary supplementation with Spirulina platensis (SP) on Atrazine (ATZ)-induced oxidative stress and inflammation in common carp (Cyprinus carpio L.). Common carp was exposed to ATZ (428μg/L) and SP (1%), either alone or in combination, for 40 days. Subsequently, the treatment groups were evaluated for ATZ-induced oxidative stress-m ...
... In horticultural practice accelerated plant development and particularly earlier flowering, has been reported with microalgae applications. Therefore, the objective of this work was to study the effects of foliar spraying with Scenedesmus sp. and Arthrospira platensis hydrolysates on Petunia x hybrida plant development and leaf nutrient status. Three treatments were tested: T1 (foliar application ...
... In this study, the effect of nitrogen limitation on microalgal growth, biochemical composition and photosynthetic performance was investigated in fed-batch mixotrophic cultivation of microalga Spirulina platensis, compared with that in autotrophic cultivation. The microalgal biomass productivity was greatly enhanced by mixotrophic cultivation. With nitrogen limitation, the mixotrophic culture acce ...
DNA damage; DNA fragmentation; chromosomes; body weight; chromosome number; DNA; males; cadmium; albino; bone marrow; Arthrospira platensis; bioactive compounds; chromosome aberrations; genotoxicity; cadmium chloride; rats
Abstract:
... Todays, bioactive compounds extracted from Spirulina platensis have been intensively studied for their therapeutical values. Therefore, in the present study, we aimed to evaluate the effects of S. platensis extract on DNA damage and chromosomal aberrations induced by cadmium in rats. Four groups of male albino rats (n = 7 rats) were used. The first group served as a control group and received dist ...
... Chronic hyperglycemia in diabetes causes free radicals overproduction, which contributes to the development of diabetic nephropathy. In modern medicine, no satisfactory therapy is available to cure diabetes mellitus. In that context, we investigated the potential therapeutic action of spirulina-enriched diet on renal impairment and oxidative stress in diabetic rats. Diabetes was induced by a singl ...
... The present study investigated the effects of dietary Spirulina platensis supplementation on growth performance, hematological and serum biochemical parameters, hepatic antioxidant status, immune responses and resistance to the pathogen infection in Coral trout Plectropomus leopardus. The fish were fed for 8-week with diets containing different levels of S. platensis: 0% (C), 2% (SP2), 4% (SP4), 6 ...
... A 60‐day growth experiment was conducted to investigate the effect of dietary replacement of fishmeal by Spirulina platensis on growth performance, digestion and physiological parameters in juvenile gibel carp (5.0 ± 1.0 g). Four diets were formulated to replace 0 (SP0), 50% (SP50), 75% (SP75) and 100% (SP100) of dietary fishmeal protein by S. platensis respectively. Other two diets based on SP100 ...
... Nitrogen plays on important role in enhancing the biochemical composition during photosynthesis. The form of nitrogen source either organic or inorganic further has an impact on the growth and biochemical composition of microalgae. The present work focuses on the influence of various l-amino acids on the growth rate, biochemical composition and polyphenol content of Spirulina platensis. Addition o ...
... Weaning of piglets is associated with important changes in gut structure and function resulting from stressful events such as separation from the sow, moving to a new facility and dietary transition from a liquid to a solid feed. This may result in post-weaning diarrhoea and a decrease in feed intake and growth. In humans, the cyanobacterium Spirulina platensis (SP) and the freshwater microalga Ch ...
... Spirulina platensis is an important aquatic source of functional components in foods and pharmaceutical products. The main purpose of present research was investigating the effect of processing methods (shade-, sun-, oven-, microwave-, vacuum oven-, freeze- and spray-drying and freezing with and without blanching) on colour properties and important photochemical components (vitamins and pigments) ...
Arthrospira platensis; Spirulina; biomass production; biosorption; cadmium; ions; magnetic fields
Abstract:
... The effect of static magnetic field (SMF) on Spirulina platensis growth and its influence on cadmium ions (Cd²⁺) removal efficiency were studied. Application of 6 h day⁻¹ SMF resulted in the highest significant biomass productivity of 0.198 g L⁻¹ day⁻¹. However, 10 and 15 mg L⁻¹ of Cd²⁺ resulted in significant reduction in biomass productivity by 8.8 and 12.5%, respectively, below the control. Com ...
... Arthrospira (Spirulina) platensis is known to have high-quality proteins content and phycocyanin as one of the major pigment constituents of the cells, and the most challenging problem associated with phycocyanin production in Arthrospira is to optimize its intracellular accumulation. The present study evaluated the metabolic stress conditions (by nutrient enrichment) of Arthrospira platensis FACH ...