Total phenolic content of the plant extracts
The total phenolic content for all of the extracts decreased after drying (Table 1). The amount of
total phenolics varied widely between 20.80 and 63.00 mg/g sample weight. Previous investigations
showed that P. foetida and S. aqueum are low in total phenolic content compared to other fruit and leaf
samples of several plants[12, 13]. Total phenolic content in ferulic acid equivalent gave the highest
levels of 62.64 ± 1.32 and 60.93 ± 3.4 mg/g sample weight for the fresh leaves and twigs of P. foetida,
respectively. P. foetida leaves and twigs often are consumed raw [4], and the total phenolic content of
the twigs was slightly lower than that of the leaves, (Table 1). It is expected that the total antioxidant