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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