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Table 4 Antiviral activity of fractions of B. gaudichaudiana OE

From: In vitro antiviral activity of plant extracts from Asteraceae medicinal plants

Fraction

Yield (%)

CC50 a(μg/ml)

EC50 b(μg/ml)

SIc

FA

1.43

396.7 ± 14.4

15.4 ± 1.0

25.8

FB

1.35

196.1 ± 6.1

7.6 ± 0.4

25.8

FC

2.56

118.5 ± 6.5

2.1 ± 0.1

56.4

FD

0.66

110.2 ± 7.9

2.5 ± 0.3

44.1

FE

2.14

390.9 ± 10.9

38.4 ± 3.8

10.2

FF

1.68

390.4 ± 10.4

33.1 ± 4.8

11.8

FG

0.75

412.3 ± 7.1

27.4 ± 3.9

15.0

FH

0.31

729 ± 3.1

20.8 ± 3.6

35.1

  1. aCC 50 cytotoxic concentration 50, bEC 50 effective concentration 50, cSI (Selectivity index) = CC 50 /EC 50 Yield (% w/w = g of fraction/100 g of OE). Results are shown as mean ± SD (n=3), each time in quadruplicate.