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Antibacterial activity evaluation of methanolic extract (ME) from microalgae (a) UKM2 (b) UKM8 (c) UKM9 using disc diffusion method. Results were expressed by the diameter size of the inhibition zone (mm). Diameter of disc was 6 mm. The negative control was sterile 5% (v/v) Tween 20 and 10% (v/v) DMSO.
