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Table 1 Plant extracts with anti-DENV-2 and anti-ZIKV activity: EC50, CC50, SI and virucidal activity

From: Searching for plant-derived antivirals against dengue virus and Zika virus

Family

Plant species

Voucher

Part

Extract

EC50 DENV-2

CC50 BHK-21

SI

Virucidal activity

EC50 ZIKV

CC50 Vero

SI

Virucidal activity

 Amaryllidaceae

Hippeastrum glaucescens

HUFSJ-2914

Flower

13356

27.9

> 100

> 3.6

No

56.8

> 100

> 1.8

No

Amaryllidaceae 

Hippeastrum glaucescens

HUFSJ-2914

Bulb

13358

3.9

8.6

2.2

No

8.9

53.0

5.9

No

 Amaryllidaceae

Hippeastrum sp.

HUFSJ-3007

Root

13418

27.5

76.2

2.8

No

41.8

> 100

> 2.4

No

 Amaryllidaceae

Hippeastrum glaucescens

HUFSJ-4494

Bulb

17006

6.2

8.4

1.4

No

10.6

44.1

4.2

No

 Amaryllidaceae

Hippeastrum puniceum

BHZB-12069

Flower

17007

3.1

8.7

2.8

No

6.8

18.2

2.8

No

 Amaryllidaceae

 Hippeastrum puniceum

 BHZB-12069

Root

17010

3.1

5.9

1.9

No

5.5

16.5

3.0

No

 Amaryllidaceae

 Hippeastrum puniceum

 BHZB-12069

Bulb

17011

0.8

1.3

1.7

No

1.1

4.2

3.8

No

Annonaceae

Duguetia furfuracea

HUFSJ-2345

Fruit

12829

9.8

> 100

> 10.2

+

34.7

> 100

> 2.9

+

Asteraceae

Chrysolaena sp.

HUFSJ-2686

Flower

13211

8.9

16.4

1.8

+

35.1

> 100

> 2.8

+

Erythroxylaceae

Erythroxylum sp.

HUFSJ-2580

Stem

13023

9.1

41.1

4.5

+

29.3

> 100

> 3.4

+

Fabaceae

Chamaecrista sp.

HUFSJ-2193

Fruit

11279

2.9

35.4

11.9

+

53.7

> 100

> 1.9

+

 Fabaceae

 Chamaecrista sp.

HUFSJ-2193 

Stem

11280

7.8

> 100

> 20.5

No

> 100

> 100

> 1.0

No

Malpighiaceae

Banisteriopsis argyrophylla

HUFSJ-2201

Stem

11298

12.5

36.6

2.9

+

48.9

> 100

> 2.0

+

 Malpighiaceae

Banisteriopsis sp.

HUFSJ-1995

Stem

11117

34.8

80.5

2.3

+

63.2

> 100

> 1.6

+

 Malpighiaceae

Byrsonima coccolobifolia

HUFSJ-2683

Flower

13203

9.4

26.7

2.8

+

43.4

> 100

> 2.3

+

Primulaceae

Ardisia sp.

HUFSJ-2368

Stem

12875

11.8

31.1

2.6

+

43.9

> 100

> 2.3

+

Rubiaceae

Palicourea sp.

HUFSJ-2360

Flower

12860

16.5

> 100

> 6.0

+

62.4

> 100

> 1.6

+

Sapindaceae

Urvillea sp.

HUFSJ-1997

Stem

11123

23.8

31.5

1.3

+

43.1

> 100

> 2.3

+

 Sapindaceae

Cupania sp.

HUFSJ-1992

Leaf

11107

19.5

38.7

2.0

+

52.7

> 100

> 1.9

+

 Sapindaceae

 Cupania sp.

 HUFSJ-1992

Stem

11108

17.8

47.9

2.7

+

21.6

> 100

> 4.6

+

Ochnaceae

Ouratea sp.

HUFSJ-2555

Flower

12969

5.2

51.7

9.9

+

26.2

> 100

> 3.8

+

  1. EC50: Half maximum effective concentration; CC50: Half maximum cytotoxic concentration; SI: Selectivity Index = ratio CC50/EC50; ( +) positive virucidal activity