112 Proceedings of the International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals (SDGs): Policy and Practice 27-29 June 2016, Cha-am, Phetchaburi, Thailand Table 4 Qualitative analysis of crude extracts from the leaves of Acacia nilotica subsp. indica, Allium stracheyi and Naravelia zeylanica Class of compound Alkaloid - - - + + - - - + + - - - - + ++ - - Phytosterols + + ++ + - - + ++ + ++ - - + + ++ + - - Phenolics + + + ++ +++ + - - + + +++ ++ - + + ++ + ++ Flavonoids + + + ++ +++ + - - + ++ +++ + - - + ++ + + Saponins - - - - + + - - ++ ++ + +++ - - - - +++ Fixed oils + + + + + - + ++ ++ + - +++ + ++ - - + + PE: Petroleum ether; BEN: Benzene; BUT: Butanol; CF: Chloroform; DCM: Dichloromethane; EAC: Ethyl acetate; ETH: Ethanol; ACT: Acetone; AQ: Water - = not present, + = present, ++ = moderately present, +++ = highly present Table 5 Total phenol content and total flavonoid content of crude extracts from the leaves of Acacia nilotica subsp. indica, Allium stracheyi and Naravelia zeylanica Extract Acacia nilotica sub sp. indica Allium stracheyi Naravelia zeylanica PE BEN DCM CF ETH AQ PE BEN BUT EAC ETH AQ PE CF EAC ETH ACT AQ Total Phenol Content (mg of GAE/g) Total Flavonoid Content (mg of Quercetin equivalents/g) Acacia nilotica sub sp. indica Allium stracheyi Naravelia zeylanica Acacia nilotica sub sp. indica Allium stracheyi Naravelia zeylanica PE 51.17 ± 0.25 28.03 ± 0.17 9.3 ± 0.31 8.49 ± 1.63 7.52± 0.71 - BEN 71.83 ± 0.81 30.01 ± 0.38 - 4.90 ± 0.57 12.43 ± 1.26 - BUT - 65.73 ± 0.62 - - 4.21± 0.21 - DCM 96.69 ± 0.86 - - 17.32 ± 5.44 - - CF 181.82 ± 1.19 - 10.2 ± 0.56 3.59 ± 0.33 - 10.2± 0.53 EAC - 79.31 ± 0.85 18.6 ± 0.73 - 9.73 ± 0.31 19.4 ± 1.72 ETH 536.02 ± 10.9 115.32 ± 1.85 40.4 ± 0.86 36.60 ± 1.18 27.62 ± 1.48 43.4± 2.81 ACT - - 11.2 ± 0.52 - - 12.4± 0.82 AQ 80.30 ± 0.96 97.35 ± 1.25 9.5 ± 0.42 16.34 ± 1.31 2.11 ± 0.33 11.5 ± 0.94 PE: Petroleum ether; BEN: Benzene; BUT: Butanol; CF: Chloroform; DCM: Dichloromethane; EAC: Ethyl acetate; ETH: Ethanol; ACT: Acetone; AQ: Water
Proceedings of International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals : Policy and Practice 27-29 June 2016 at the Sirindhorn International Environmental Park, Cha-am, Phetchaburi, Thailand
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