. 2019 Nov 29;27(7):1886–1891. doi: 10.1016/j.sjbs.2019.11.029

Table 4.

Antibacterial activity of crude extracts of dates assayed by well diffusion.

Extracts	Variety	Bacteria
		Ec	Bs	Sp	Pa	Sf	Sa
		Zone of inhibition (mm)
Water	Sukri	19.5^c	20.5^f	0^a	0^a	0^a	23.25^ef
	Barhi	17.5^b	17.25^b	0^a	0^a	0^a	13.5^a
	Rothana	15.25^a	15.75^a	0^a	0^a	0^a	19^b

Methanol	Sukri	22.25 ^fg	25.5ⁱ	0^a	18.75^c	24.5^d	27.75ⁱ
	Barhi	24.75 ^h	23.5 ^h	12.0^d	18^b	0^a	20.75 ^cd
	Rothana	20.5^d	19.5^d	0^a	18^b	0^a	26.75 ^h

Acetone	Sukri	21.75^efg	26ⁱ	10.0^b	0^a	0^a	27.25^hi
	Barhi	22.75 ^g	25.75ⁱ	12.0^d	0^a	0^a	24.75 ^g
	Rothana	21d^e	20.25^ef	0^a	0^a	0^a	20.25^ce

Ethanol	Sukri	21.5^ef	20.5^f	12.5^d	0^a	20.75^c	22.75^e
	Barhi	21.75^efg	19.5^c	11.25^c	0^a	0^a	21.25^d
	Rothana	22.0^efg	21.5 ^g	11.5^c	0^a	19.25^b	24 f^g

Control		26.0 ⁱ	31^j	16.5 ^e	23^d	25.5^e	30 ^j

Each value is an average of four replicates.

Column with different letters are significantly different (P ≤ 0.05) according to Duncan’s multiple range test.

Ec:E. coli ATCC 25922; Bs:Bacillus subtilis ATCC 6633; Sp:Streptococcus pyogenes (clinical isolate); Pa:Pseudomonas aeruginosa ATCC 27853; Sf:Shigella flexeneri (clinical isolate); Sa:Staphylococcus aureus ATCC 2592.