Abstract: The present invention relates to a pharmaceutical composition for inhibiting influenza virus infection and reproduction, comprising a effective amount of C-phycocyanin (C-PC), allophycocyanin (APC), spirulina growth factor (SGF) or the mixture thereof. The present invention also provides a method for extracting said pharmaceutical composition, comprising the steps of: (a) adding hypotonic buffer solution to organic blue-green algae powder and mixing thoroughly; (b) incubating the mixture below room temperature overnight; (c) separating and purifying the mixture by a centrifuge; (d) collecting the suspending supernatant and detecting it by a spectrometer to determine ingredients and content; and (e) spray drying the supernatant; characterized in which low-temperature extraction is employed to maintain the bioactivity and nutrients of the pharmaceutical composition.

Abstract: The present invention is related to a composition for controlling blood sugar, which includes effective amount of blue algae and mulberry leaves. It can control blood sugar by means of the blue algae helping blood sugar metabolism and mulberry leaves blocking sugar decomposition and entering into blood. The present invention also discloses an oral prophylactic agent containing the composition.

Abstract: The present invention relates to a method for culturing blue-green algae, comprising the steps of obtaining desired algae species, inoculating the culture medium and carrying out mass culture, and characterized in which said culture medium contains fermented and aerated high-nitrogen organic substance and has a pH of 8 or greater, and is free of inorganic salts, such as carbonate or hydrogen carbonate.