Results 171 to 180 of about 12,221 (206)
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Electron micrographic investigations of C-phycocyanin
Archives of Biochemistry and Biophysics, 1965Abstract C-Phycocyanin extracted from the blue-green alga Plectonema calothricoides was investigated with the electron microscope and the contrasting technique. Potassium phosphotungstate and uranyl acetate were used as contrast agents. Round structures with a central hole were evident and were interpreted as being the hexamer structure postulated ...
D S, Berns, M R, Edwards
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Concentration-based self-assembly of phycocyanin
Photosynthesis Research, 2017Cyanobacteria light-harvesting complexes can change their structure to cope with fluctuating environmental conditions. Studying in vivo structural changes is difficult owing to complexities imposed by the cellular environment. Mimicking this system in vitro is challenging, as well.
Ido Eisenberg +10 more
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Potential Therapeutic Applications of C-Phycocyanin
Current Drug Metabolism, 2020Background:Cancer and other disorders such as inflammation, autoimmune diseases and diabetes are the major health problems observed all over the world. Therefore, identifying a therapeutic target molecule for the treatment of these diseases is urgently needed to benefit public health.
Saira M. Bannu +5 more
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Surface properties of phycocyanin
Journal of Colloid and Interface Science, 1983Abstract The change of surface pressure (π) during adsorption and compression of phycocyanin film at the air-water interface indicates that this phycobiliprotein is strongly attracted to the interface. It behaves like a flexible molecule but is not completely unfolded. The steep slope of the curve of π as a function of the bulk concentration ( C b ),
Rami Almog, Donald S Berns
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Journal of Food Science, 2020
Phycocyanin, a natural blue colorant, is typically extracted from liquid biomass of Arthrospira platensis, a blue-green algae called spirulina. In this study, we developed a scalable process to extract phycocyanin from dried spirulina biomass.
Ying Li +3 more
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Phycocyanin, a natural blue colorant, is typically extracted from liquid biomass of Arthrospira platensis, a blue-green algae called spirulina. In this study, we developed a scalable process to extract phycocyanin from dried spirulina biomass.
Ying Li +3 more
semanticscholar +1 more source
Cleavage of phycocyanobilin from C-phycocyanin
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1968Abstract The bile pigment chromophore of C-phycocyanin, phycocyanobilin, was cleaved from the protein by several procedures. Comparison of the crystalline phycocyanobilin dimethyl ester by chemical, spectral, and chromatographic properties was made. The pigment was found to be identical by all procedures.
D J, Chapman, W J, Cole, H W, Siegelman
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Effect of salts on C-phycocyanin
Archives of Biochemistry and Biophysics, 1971Abstract The effect of a number of inorganic anions on the quaternary structure of C-phycocyanin has been investigated by fluorescence polarization. Dissociation to monomer occurred in the order: SCN− > ClO4− > NO3− > Br− > Cl−. These results suggest that hydrophobic interactions are important in the hexamer-monomer equilibrium of C-phycocyanin.
R, MacColl, D S, Berns, N L, Koven
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PHYCOCYANIN‐SENSITIZED PHOTOREDUCTION OF AZO DYES*
Photochemistry and Photobiology, 1969Abstract— Phycocyanin can sensitize the photobleaching of azo dyes in a reaction which is analogous to one sensitized by chlorophyll. The quantum yield of the phycocyanin‐sensitized photobleaching of congo red is low compared to the analogous reaction as sensitized by chlorophyll in aqueous pyridine.
J S, Bellin, C A, Gergel
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Ultracentrifuge study of C-phycocyanin aggregation
Biochemistry, 1981The molecular weight of C-phycocyanin has been determined as a function of protein concentration in a sodium acetate buffer solution of pH 4.8 at 21.2 degrees C by the Yphantis method. The higher aggregate, the dodecamer (19 S), is first removed by dissociation simply by dialysis against pH 3.9 acetate buffer solution.
C, Huang, D S, Berns
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Effect of phycocyanin in zymosan-induced arthritis in mice?phycocyanin as an antiarthritic compound
Drug Development Research, 1999The antiinflammatory effect of a phycocyanin extract was studied in zymosan-induced arthritis model in mice. Four days after the intraarticular injection of zymosan, (15 mg/ml), phycocyanin (25, 50, and 100 mg/kg p.o) was administered to animals for 8 days. The mice were then killed and the synovial fluid measured for β-glucuronidase.
Diadelis Remirez +6 more
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