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https://www.readbyqxmd.com/read/29352458/polyhydroxybutyrate-phb-synthesis-by-spirulina-sp-leb-18-using-biopolymer-extraction-waste
#1
Cleber Klasener da Silva, Jorge Alberto Vieira Costa, Michele Greque de Morais
The reuse of waste as well as the production of biodegradable compounds has for years been the object of studies and of global interest as a way to reduce the environmental impact generated by unsustainable exploratory processes. The conversion of linear processes into cyclical processes has environmental and economic advantages, reducing waste deposition and reducing costs. The objective of this work was to use biopolymer extraction waste in the cultivation of Spirulina sp. LEB 18, for the cyclic process of polyhydroxybutyrate (PHB) synthesis...
January 20, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29346320/c-phycocyanin-and-phycocyanobilin-as-remyelination-therapies-for-enhancing-recovery-in-multiple-sclerosis-and-ischemic-stroke-a-preclinical-perspective
#2
REVIEW
Giselle Pentón-Rol, Javier Marín-Prida, Viviana Falcón-Cama
Myelin loss has a crucial impact on behavior disabilities associated to Multiple Sclerosis (MS) and Ischemic Stroke (IS). Although several MS therapies are approved, none of them promote remyelination in patients, limiting their ability for chronic recovery. With no available therapeutic options, enhanced demyelination in stroke survivors is correlated with a poorer behavioral recovery. Here, we show the experimental findings of our group and others supporting the remyelinating effects of C-Phycocyanin (C-PC), the main biliprotein of Spirulina platensis and its linked tetrapyrrole Phycocyanobilin (PCB), in models of these illnesses...
January 18, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29339102/spirulina-ameliorates-methotrexate-hepatotoxicity-via-antioxidant-immune-stimulation-and-proinflammatory-cytokines-and-apoptotic-proteins-modulation
#3
Asmaa F Khafaga, Yasser S El-Sayed
AIMS: Methotrexate (MTX) is an efficient cytotoxic drug used against various carcinogenic, inflammatory and autoimmune diseases; however, the hepatotoxicity of MTX limits its use. Therefore, the present study aimed to evaluate the potential hepatoprotective and immune-stimulant effect of Spirulina platensis (SP) against MTX acute toxicity. MAIN METHODS: Thirty-two male Wistar rats were randomly allocated into the following four groups (n = 8): control, MTX (20 mg/kg bwt, single ip injection), SP (500 mg/kg bwt, oral gavage daily for 21 days), and MTX+SP...
January 12, 2018: Life Sciences
https://www.readbyqxmd.com/read/29336630/ameliorating-role-of-lycopene-tomato-puree-and-spirulina-tomato-puree-on-the-hematology-of-fluoride-exposed-swiss-albino-mice
#4
Shweta Sharma, Puneet Parashar, Subhasini Sharma, Kanta Prasad Sharma
Plant species rich in antioxidants (vitamins, flavonoids, lignans, and carotenoids) have been explored for complementary therapy of chronic diseases (cancers, coronary heart disease) and mitigation of pollutant toxicity. This article investigates their ameliorative role on selective hematological and serum biochemical parameters in fluoride-exposed (190 mg/kg body weight) Swiss albino mice pretreated with the antioxidant-rich diet supplements tomato puree (with and without peels), spirulina (cyanobacteria), and lycopene (present in tomato) for 45 days prior to entry into experimental protocol...
January 16, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29333572/possible-protective-effect-of-the-algae-spirulina-against-nephrotoxicity-induced-by-cyclosporine-a-and-or-gamma-radiation-in-rats
#5
Maha M Aziz, Nihad I Eid, Ahmed S Nada, Nour El-Din Amin, Afaf A Ain-Shoka
The present study was conducted to evaluate the possible protective role of the algae spirulina (Sp) against nephrotoxicity and oxidative stress which are the main secondary effects induced by the immunosuppressant drug CSA and/or ionizing radiation. In this study, male rats were given Sp (1 g/kg) either for 15 days before irradiation (6.5 Gy) or 5 days before and 10 days concomitant with CSA (25 mg/kg). Markers used to assess renal injury included serum creatinine, urea, glucose, albumin, protein, and lipid profile as well as kidney content of reduced glutathione (GSH); lipid peroxidation (thiobarbituric acid reactive substances (TBARS)); nitrite and superoxide dismutase (SOD) activity...
January 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29324891/correction-effects-of-spirulina-on-the-functions-and-redox-status-of-auditory-system-in-senescence-accelerated-prone-8-mice
#6
Yin-Ching Chan, Juen-Haur Hwang
[This corrects the article DOI: 10.1371/journal.pone.0178916.].
2018: PloS One
https://www.readbyqxmd.com/read/29324668/effect-of-ultrasonic-extraction-on-production-and-structural-changes-of-c-phycocyanin-from-marine-spirulina-maxima
#7
Woon Yong Choi, Hyeon Yong Lee
This work first showed that very high amounts of phycocyanins, such as 11.3 mg/mL C-phycocyanin (C-PC), 3.1 mg/mL allophycocyanin (APC), and 0.8 mg/mL phycoerythrin (PE), can be obtained using an ultrasonic extraction process (UE) with a 60 kHz frequency and 3 h of process time at 25 °C, without any other pretreatments. These yields were higher than those from most conventional water extractions at 4 °C for 24 h (Control condition) or at 25 °C for 24 h (WE), namely, 9.8 and 5.7 mg/mL C-PC, 2.3 and 1.2 mg/mL APC, and 0...
January 11, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29310849/fat-burner-induced-acute-liver-injury-case-series-of-four-patients
#8
Aleksandar Gavrić, Marija Ribnikar, Lojze Šmid, Boštjan Luzar, Borut Štabuc
Dietary supplements known as "fat burners" are typically marketed with claims of increasing energy expenditure through alterations in fat metabolism. They are marketed as natural products and their use is thus perceived as a safe body weight reduction strategy. We report on five episodes of liver injury in four patients. Liver injury was associated with consumption of different commercially available fat burners: Green tea extract (Camellia sinensis), Garcinia gummi-gutta, green coffee beans, and spirulina (blue-green algae)...
November 6, 2017: Nutrition
https://www.readbyqxmd.com/read/29306124/optimizing-light-distribution-and-controlling-biomass-concentration-by-continuously-pre-harvesting-spirulina-platensis-for-improving-the-microalgae-production
#9
Huan Liu, Hongjun Chen, Shan Wang, Qing Liu, Sen Li, Xueer Song, Jiaojiao Huang, Xin Wang, Lishan Jia
To improve the microalgae production in batch cultivation, a cultivation mode that continuously pre-harvesting Spirulina platensis from photobioreactor (PBR) with culture medium recycling was proposed. For realizing the continuously pre-harvesting cultivation mode, a Spirulina platensis culture column PBR with overflowing device was designed, which could adjust pre-harvesting rate through the overflowing device. By adjusting the pre-harvesting rate, the biomass concentration could be kept when biomass accumulation and pre-harvesting biomass were equal...
December 18, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29287781/beneficial-effects-of-oral-administration-of-c-phycocyanin-and-phycocyanobilin-in-rodent-models-of-experimental-autoimmune-encephalomyelitis
#10
Majel Cervantes-Llanos, Nielsen Lagumersindez-Denis, Javier Marín-Prida, Nancy Pavón-Fuentes, Viviana Falcon-Cama, Beatriz Piniella-Matamoros, Hanlet Camacho-Rodríguez, Julio Raúl Fernández-Massó, Carmen Valenzuela-Silva, Ivette Raíces-Cruz, Eduardo Pentón-Arias, Mauro Martins Teixeira, Giselle Pentón-Rol
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. AIM: The scope of this study was to provide evidence that the oral administration of C-Phycocyanin (C-PC), the main biliprotein of the Spirulina platensis cyanobacteria and its tetrapyrrolic prosthetic group, Phycocyanobilin (PCB), exert ameliorating actions on rodent models of experimental autoimmune encephalomyelitis (EAE)...
December 26, 2017: Life Sciences
https://www.readbyqxmd.com/read/29287362/immunomodulatory-and-anticancer-protein-hydrolysates-peptides-from-food-proteins-a-review
#11
REVIEW
Meram Chalamaiah, Wenlin Yu, Jianping Wu
Bioactive peptides are oligopeptides that consist of 2-20 amino acids that can exert beneficial effects on human health in addition to basic nutritional effects. Food derived protein hydrolysates or peptides with immunomodulatory and anticancer activities have been reported from a variety of food protein sources such as milk, egg, fish, rice, soybean, pea, chlorella, spirulina, oyster and mussel. In vitro hydrolysis of food proteins using commercial proteolytic enzymes is the most commonly employed process for the production of immunomodulatory and anticancer food protein hydrolysates...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29255959/composition-and-functional-property-of-photosynthetic-pigments-under-circadian-rhythm-in-the-cyanobacterium-spirulina-platensis
#12
Deepak Kumar, Vinod K Kannaujiya, Richa, Jainendra Pathak, Shanthy Sundaram, Rajeshwar P Sinha
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 of 4/20, 8/16, 12/12, 16/8, 20/4 and 24/24 h time duration. Circadian exposure of PAR + UV-A (PA) and PAR + UV-A + UV-B (PAB) showed more than twofold decline in Chl a, total protein and phycocyanin (PC) in light phase and significant recovery was achieved in dark phase...
December 19, 2017: Protoplasma
https://www.readbyqxmd.com/read/29244751/spirulina-extract-enhanced-a-protective-effect-in-type-1-diabetes-by-anti-apoptosis-and-anti-ros-production
#13
Jiyeong Lee, Arum Park, Mi Jeong Kim, Hee-Joung Lim, Young-Ah Rha, Hee-Gyoo Kang
Interest in the nutritional value and pharmacological activities of blue-green algae has gradually increased. Spirulina extracts show protective effects against apoptosis and inflammatory damage in various cell types. Here, we investigated the protective effects of extracts from Spirulina maxima in a cytokine-mediated type 1 diabetes model in vitro and in streptozotocin-induced diabetic Wistar rats in vivo. Interleukin-1β and interferon-gamma induced substantial cytotoxicity to RINm5F rat insulinoma cells, increasing nitric oxide (NO) production, nuclear factor-kappa B (NF-κB) activity, the expression of endoplasmic reticulum (ER) stress genes, and activation of mitogen-activated protein kinases and key genes related apoptosis...
December 15, 2017: Nutrients
https://www.readbyqxmd.com/read/29193817/isolation-and-purification-of-food-grade-c-phycocyanin-from-arthrospira-platensis-and-its-determination-in-confectionery-by-hplc-with-diode-array-detection
#14
Maria Kissoudi, Ioannis Sarakatsianos, Victoria Samanidou
C-Phycocyanin is the major phycobiliprotein in Arthrospira platensis, also known as Spirulina, which is a cyanobacterium used as a dietary supplement because of its powerful effects on body and brain. C-phycocyanin is a blue-colored accessory photosynthetic pigment with multiple applications in food industry as natural dye or additive, and in pharmaceuticals. This study presents a simple protocol for the extraction and purification of food-grade C-phycocyanin from Arthrospira platensis. The cell lysis of cyanobacterium was performed by sonication combined with repeated freezing and thawing cycles...
November 28, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29190763/in-vitro-activity-of-spirulina-platensis-water-extract-against-different-candida-species-isolated-from-vulvo-vaginal-candidiasis-cases
#15
Antonella Marangoni, Claudio Foschi, Matteo Micucci, Rogers Alberto Nahui Palomino, Tullia Gallina Toschi, Beatrice Vitali, Luca Camarda, Mara Mandrioli, Marta De Giorgio, Rita Aldini, Ivan Corazza, Alberto Chiarini, Roberto Cevenini, Roberta Budriesi
The high incidence of vulvo-vaginal candidiasis, combined with the growing problems about azole resistance and toxicity of antifungal drugs, highlights the need for the development of new effective strategies for the treatment of this condition. In this context, natural compounds represent promising alternatives. The cyanobacterium Spirulina platensis, a blue-green alga, exhibits antimicrobial activities against several microorganisms. Nevertheless, only few data about the antifungal properties of Spirulina platensis are available and its potential toxic effects have not been largely investigated...
2017: PloS One
https://www.readbyqxmd.com/read/29184939/consumption-of-plant-food-supplements-in-the-netherlands
#16
Suzanne M F Jeurissen, Elly J M Buurma-Rethans, Marja H Beukers, Martine Jansen-van der Vliet, Caroline T M van Rossum, R Corinne Sprong
The use of food supplements containing herbs or other botanical ingredients (plant food supplements, PFS) is on the rise. In some cases, PFS can contain compounds that are toxic and may pose a health risk. To assess the potential health risks, information on the consumption of PFS is required, however, this was lacking for the Netherlands. In the current study, the consumption of PFS was investigated for several subgroups in the Dutch population, including children. Data from the Dutch National Food Consumption Surveys were used to get a first impression on the consumption of PFS...
November 29, 2017: Food & Function
https://www.readbyqxmd.com/read/29169006/antimicrobial-resistant-faecal-organisms-in-algae-products-marketed-as-health-supplements
#17
L Ryan, M Molloy, L Evans, A Quinn, E Burke, E McGrath, M Cormican
Dietary supplements are increasingly popular in Irish society. One of these is blue-green algae which is used with a variety health benefits in mind. A batch of Chlorella powder was found to be contaminated with Salmonella species in Ireland in 2015. This prompted additional testing of a total of 8 samples of three different products (Chlorella, Spirulina and Super Greens), for other faecal flora and antimicrobial resistance in any bacteria isolated. All 8 samples cultured enteric flora such as Enterococci, Enterobacteriaceae and Clostridium species...
August 12, 2017: Irish Medical Journal
https://www.readbyqxmd.com/read/29166288/spirulina-platensis-affects-factors-involved-in-spermatogenesis-and-increases-ghrelin-receptors-in-testis-tissue-of-rats-fed-a-high-fat-diet
#18
O B B Esener, E Gurel-Gurevin, B Isbilen-Basok, F Yigit, T Bilal, A Altiner, N Yilmazer, E I Armutak
Ghrelin is a peptide hormone which plays important role in maintaining growth hormone release and energy homeostasis in vertebrates. Spirulina platensis (SP) has antioxidant and hypolipidemic effects due to its ingredients. In this study we aimed to investigate the effects of SP on the testicular structure and relation between ghrelin and testosterone in the testis of rats fed a high fat diet (HFD). Sixty four young adult male rats were used and divided to 8 equal groups. Experimental groups received addition of 10% cholesterol (CHL), 43% hydrogenated vegetable oil (HVO) and 3% SP alone or in combination to basal diet while the control group received only basal diet...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29160837/application-of-an-ultrafine-shearing-method-for-the-extraction-of-c-phycocyanin-from-spirulina-platensis
#19
Jianfeng Yu
Cell disruption is an important step during the extraction of C-phycocyanin from Spirulina platensis. An ultrafine shearing method is introduced and combined with soaking and ultrasonication to disrupt the cell walls of S. platensis efficiently and economically. Five kinds of cell disruption method, including soaking, ultrasonication, freezing-thawing, soaking-ultrafine shearing and soaking-ultrafine shearing-ultrasonication were applied to break the cell walls of S. platensis. The effectiveness of cell breaking was evaluated based on the yield of the C-phycocyanin...
November 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29156305/effect-of-dietary-supplementation-with-spirulina-platensis-on-atrazine-induced-oxidative-stress-mediated-hepatic-damage-and-inflammation-in-the-common-carp-cyprinus-carpio-l
#20
Hosam Toughan, Samah R Khalil, Ashraf Ahmed El-Ghoneimy, Ashraf Awad, A Sh Seddek
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-mediated hepatic damage and the potential antioxidant effect(s) of SP supplementation. The results indicated that ATZ exposure led to a significant increase in the oxidative stress as suggested by the increased levels of lipid and DNA oxidative damage markers and the significant decline of antioxidant status biomarkers...
November 17, 2017: Ecotoxicology and Environmental Safety
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