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Inactivation of human type A and B influenza viruses by tea-seed saponins
K Hayashi1, Y M Sagesaka, T Suzuki
1Central Research Institute, Ito En Ltd., Shizuoka, Japan. ITN00535@nifty.ne.jp
Bioscience, Biotechnology, and Biochemistry
|March 8, 2000
Abstract:
The effects of a mixture of tea-seed saponins obtained from the seeds of Camellia sinensis var. sinesis on human influenza viruses types A and B were investigated. At the concentrations of 60, 80, and 100 micrograms/ml, respectively, the mixture inactivated viruses A/Memphis/1/71 (H3N2), B/Lee/40, and A/PR/8/34 (H1N1) almost completely. The mixture also inactivated type A virus A/PR/8/34 after inoculation at concentrations of 1-30 micrograms/ml dose-dependently.