BioMed Research International / 2014 / Article / Tab 2

Research Article

Antioxidants, Phytochemicals, and Cytotoxicity Studies on Phaleria macrocarpa (Scheff.) Boerl Seeds

Table 2

Results of chemical constituents of P. macrocarpa seeds.

No.TestsReagents Observation

1AlkaloidsWagner’s reagent
Mayer’s reagent
Dragendorff’s reagent
Sodium picrate solution
+
+
+
+
2α-Amino acidsNinhydrin reagent+
3Carbohydrates10% α-naphthol and conc: H2SO4++
4Cyanogenic glycosidesSodium picrate solution+
5FlavonoidsMg and conc: HCl++
6Glycosides10% lead acetate++
7Organic acidsBromothymol blue+
8Phenolic compounds 1% FeCl3++
9Reducing sugarsFehling’s solutions
A and B
+
10Saponin glycosidesDistilled water++
11StarchIodine solution+
12SteroidsAcetic anhydride and conc: H2SO4++
13Tannins1% Gelatin++
14TerpenoidsAcetic anhydride and conc: H2SO4++

+++: large amount; ++: medium amount; +: small amount; −: absent; +: present.