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Table 5 Total phenolic content and some separated phenolic compounds from ethanol extract of P. speciosa seed collected from different locations of Malaysia

From: Assessment and comparison of phytochemical constituents and biological activities of bitter bean (Parkia speciosa Hassk.) collected from different locations in Malaysia

Locations Total phenolics Gallic acid Caffeic acid Ferulic acid trans-cinnamic acid p-coumaric acid
Perak 26.3 ± 2.74a 6.42 ± 0.67a 1.46 ± 0.67a 2.71 ± 0.89a 1.84 ± 0.45a 2.73 ± 0.41a
Negeri Sembilan 20.5 ± 2.26b 5.11 ± 0.59b ND 2.26 ± 0.83a 1.05 ± 0.29b 1.89 ± 0.32b
Johor 14.9 ± 2.03c 3.56 ± 0.28c 1.19 ± 0.37a ND 0.64 ± 0.04c ND
  1. Data are means of triplicate measurements ± standard deviation. Means not sharing a common single letter in each column for each measurement were significantly different at P < 0.05. The units of total phenolics and phenolic compounds aremg gallic acid equivalents per gram DM and mg per gram DM
  2. ND not detected