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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