Table 2.

Surface maximum depth parameter at different temperature, concentration of Luffa cylindrica extract and time of immersion of MS in 0.5 MHCl.

Temp K	Inh. Conc. (g/L)	Time (hr)
		4			8			12
		RZ	CR	IE	RZ	CR	IE	RZ	CR	IE
		(μm)	(μm/hr)	(%)	(μm)	(μm/hr)	(%)	(μm)	(μm/hr)	(%)
303	0.00	1.01	0.2525		1.84	0.2306		2.83	0.2360	-
	0.50	0.30	0.0752	70.24	0.55	0.0684	70.34	0.81	0.0676	71.34
	0.75	0.29	0.0714	71.73	0.51	0.0639	72.27	0.76	0.0630	73.32
	1.00	0.26	0.0661	73.83	0.47	0.0587	74.53	0.67	0.0562	76.20
	0.00	3.02	0.7558		5.35	0.6681		7.40	0.6163	-
318	0.50	0.68	0.1694	77.58	1.19	0.1487	77.75	1.56	0.1301	78.89
	0.75	0.61	0.1532	79.73	1.09	0.1361	79.64	1.43	0.1188	80.72
	1.00	0.53	0.1331	82.39	0.91	0.1138	82.97	1.21	0.1011	83.59
	0.00	5.93	1.4822		10.75	1.3443		15.97	1.3311	-
333	0.50	0.93	0.2314	84.38	1.57	0.1960	85.42	2.28	0.1899	85.73
	0.75	0.88	0.2193	85.21	1.48	0.1848	86.25	2.11	0.1760	86.78
	1.00	0.78	0.1955	86.81	1.36	0.1697	87.38	1.92	0.1600	87.98

R_z = maximum depth r = rate of attack IE = inhibition efficiency.