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Table 1 Extracts of 14 Thai plants and their yields based on weight

From: Thai plants with high antioxidant levels, free radical scavenging activity, anti-tyrosinase and anti-collagenase activity

Voucher number

Parts used

Scientific name

Yield % (w/w)

Petroleum ether

Dichloromethane

Ethanol

A 015122 (BCU)

Leaf

Ardisia elliptica Thunb.

19.89

3.25

31.11

A 015123 (BCU)

Leaf

Stemona curtisii Hook.f.

7.55

4.10

6.34

A 015124 (BCU)

Leaf

Gynura pseudochina (L.) DC.

8.00

2.76

3.79

A 015125 (BCU)

Leaf

Senna alata (L.) Roxb.

5.84

3.52

7.63

A 015126 (BCU)

Leaf

Croton roxburghii N.P.Balakr

7.50

4.82

8.17

A 015127 (BCU)

Leaf

Croton sublyratus Kurz

7.33

4.03

3.32

A 015128 (BCU)

Leaf

Phyllanthus acidus (L.) Skeels

9.70

2.86

4.20

A 015129 (BCU)

Leaf

Rhinacanthus nasutus (L.) Kurz

4.43

2.86

5.35

A 015130 (BCU)

Leaf

Hibiscus mutabilis L.

6.30

2.79

0.73

A 015131 (BCU)

Leaf

Streblus asper Lour.

3.87

2.53

3.56

A 015132 (BCU)

Leaf

Annona squamosa L.

8.69

3.81

5.47

A 015133 (BCU)

Leaf

Datura metel L.

6.44

4.13

14.15

A 015250 (BCU)

Leaf

Ipomoea pes-caprae (L.) R.br.

6.38

4.50

3.98

A 015279 (BCU)

Pericarp

Garcinia mangostana Linn.

4.94

11.07

18.64