Antibacterial activity of extracts from five red algae.
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The algal extracts were applied to GYP agar plates onto which B. subtilis spores had been spread and their antibacterial activities were estimated by measuring the diameter of the clear inhibition zones after 16 h of incubation at 37°C. (A) Agar well diffusion assay showing inhibition of B. subtilis growth by P. subcostata extract. Upper, treated with kanamycin sulfate solution as a control. Lower, treated with P. subcostata extract. Growth-inhibition zones were observed. (B) Antibacterial activity of five red algae. *Diameter of growth-inhibition zone: -, 0 mm; +, ~7 mm; ++, 7–10 mm; +++, ≥10 mm.
创建时间:
2016-03-16



