Ethanol extract and chromatographic fractions of Tamarindus indica stem bark inhibits Newcastle disease virus replication

Figures & data

Table 1. Allantioc fluid spot haemagglutination (HA) screening for antiviral activities of T. indica crude extract and fractions on velogenic NDV.

Concentration (mg/mL)	Crude	TiA	TiB	TiC	TiD	Virus control	Control (no virus, no extract)	Extract control
62.5	+	+	+	+	+	+	−	−
125	−	+	+	–	+	+	−	−
250	−	−	−	−	−	+	−	−

−: absence of HA activity.

+: presence of HA activity.

Table 2. Allantioc fluid haemagglutination (HA) titration assay for antiviral activities of T. indica crude extract and fractions on velogenic NDV.

Concentration (mg/mL)	Crude	TiA	TiB	TiC	TiD	Virus control	Control (no virus, no extract)	Extract control
0	1:256	1:256	1:256	1:256	1:256	1:256	0	0
62.5	1:128	1:128	1:64	1:128	1:128	1:256	0	0
125	1:4	1:8	1:16	1:4	1:16	1:256	0	0
250	0	0	0	0	0	1:256	0	0

0: absence of HA activity.