Phycocyanin, a super functional ingredient from algae; properties ...
2021年12月15日 · In another study, characterization of C-PC from Limnothrix sp. strain 37-2-1 indicated that it had a maximum absorbance spectra at 620 nm, and a fluorescence at 644 nm [97]. In the literature, the molecular mass of C-PC was reported to be between 81 and 215 kDa in different cyanobacterial genera and that for α and β subunit between 15.2 and ...
Phycocyanin - Wikipedia
Phycocyanin is a characteristic light blue color, absorbing orange and red light, particularly 620 nm (depending on which specific type it is), and emits fluorescence at about 650 nm (also depending on which type it is).
Spectral and conformational characteristics of phycocyanin …
2024年1月15日 · C-phycocyanin (C-PC) is the main component of water-soluble light-harvesting complexes (phycobilisomes, PBS) of cyanobacteria. PBS are involved in the absorption of quantum energy and the transfer of electronic excitation energy to the photosystems.
Fluorescence properties of Phycocyanin and Phycocyanin …
2020年10月5日 · The molar absorbance is typically determined to be 8.3 × 10 −4 M −1 cm −1, at 610 nm according UV–visible spectra and the quantum yield is measured to be 53% for PC product by means of photoluminescence (PL) spectroscopy [9].
Spectrum [C-Phycocyanin] - AAT Bioquest
AAT Bioquest's interactive Spectrum Viewer is a powerful tool for analysis and comparison of the spectra of common compounds used in absorbance and fluorescence formats. The Spectrum Viewer is set to fluorescent mode by default.
Spectroscopic Properties of C-Phycocyanin and of Its α and β …
1973年8月25日 · In the present study, we have reconstituted phycocyanin from its subunits by two distinct procedures, and have compared the resulting preparations with native phpcocyanin under the same conditions, at the same protein concentration, with respect to weight average molecular weight, absorption spectra, and CD spectra.
Absorption spectra of phycocyanin (at 620 nm) purified from …
In this study, C-phycocyanin was extracted and purified from Spirulina platensis, which are multicellular and filamentous cyanobacteria of greater importance because of its various biological and...
Phycocyanin‐specific absorption coefficient: Eliminating the …
2015年4月6日 · The goals of this study were: (1) to determine the net effect of PC absorption at the wavelength around 625 nm (where a peak is observed in absorption spectra and a small but discernible trough in reflectance spectra); (2) to establish the quantitative relationship between PC concentration and specific absorption coefficient of PC; (3) to ...
Spectroscopic Properties of C-Phycocyanin and of Its α and β …
The absorption characteristics of the β subunit indicate that it contains the s type of chromophore, whereas those of the α subunit are consistent with the presence of the f type of chromophore. As reported earlier by others, aggregation of phycocyanin results in a red shift of the absorption maximum, and a large increase in the extinction ...
Phycocyanin: One Complex, Two States, Two Functions
2018年3月5日 · Using single-molecule spectroscopy, we show that phycocyanin can dynamically switch between two spectrally distinct states originating from two different conformations. Unexpectedly, one of the two states has a red-shifted emission spectrum.