1, The time resolved polarized fluorescence of oriented R phycoerythrin single crystal from red alga Porphyra yezoensis was studied in picosecond time scale.

2, For comparative study, phycoerythrin from Porphyra haitanensis was also purified and its properties were compared with that of phycoerythrin from Bangia fusco-purpurea.

3, As the By-products of Gracilaria agar Industry, Phycoerythrin which character is similar to the polymer pigment, but we have not yet learned how to reuse them as fully as we can.

4, Extraction of phycoerythrin from porphyry yezoensis by pulsed ultrasound was studied.

5, The fluorescence labeling technique of phycoerythrin and application for the immunoassay of Tobacco mosaic Virus were studied in this research using it as a labeling probe.

6, Objective In order to study the inhibitory effect of R Phycoerythrin mediated Photodynamic reaction on S180 tumor cells, and explore novel photodynamic drugs.

7, The cost of mass production of alga and purification of phycoerythrin will seriously constrain the wide range demands of B-phycoerythrin applications in biomedical and food industries.

8, At the end of this article, we deeply discussed how to improve the sensitivity of immunoassay that used the phycoerythrin fluor as probes.