| 摘要 |
A composition comprising the extract of Capsosiphon fulvescens is provided to increase immune activity of complement system in human body by promoting production of IgA(immunoglobulin A) antibody, and inhibit growth of cancer cells without side effects and toxicity to human, so that the composition is useful to treat and prevent various diseases. A composition for increasing immune activity comprises the extract of Capsosiphon fulvescens with molecular weight of 300-500kDa which is prepared by extracting Capsosiphon fulvescens in hot water at 90-110 deg. C for 2-4 hours, precipitating the hot water extract of Capsosiphon fulvescens with alcohol, and ultrafiltering the precipitates, wherein the daily dosage of the composition is 1-1000 mg/kg.
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