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Study of Phytochemical Properties and Anti-oxidant Activities in Seed of
Trigonellafoenum-graecum, Brassica nigra and Salvia hispanica species
Nurul Syafiqah Binti Mohamad Ashri
Pn. Nurul Huda Binti Abdul Wahab
Bachelor of Science (Chemical Sciences)
School Of Fundamental Sciences
Studies on three different seeds known as Trigonellafoenum-graecum, Brassica nigra
and Salvia hispanica, has been conducted on phytochemical test and antioxidant
activities. The chosen samples were extracted using three different solvents (hexane,
ethyl acetate and methanol). Phytochemical screening on T.foenum-graecum showed
positive results on alkaloids, flavonoids in hexane and methanol extracts. More over,
tannins, reducing sugar, carbohydrate and phenolic content indicated in ethyl acetate
and methanol extracts. In B.nigra sample, methanol extracts showed promising
positive results with presence of alkaloids, flavonoids, tannins, phenolic content,
saponins, reducing sugar and carbohydrates. S.hispanica showed the presence of
alkaloid, flavonoid in hexane extracts. Meanwhile, reducing sugar and carbohydrate
indicated in ethyl acetate and methanol extracts. Additionally, the non-enzymatic
antioxidant activities also determined and indicated the presence of α-tocopherol and
carotenoid. This study designated that the chosen samples exhibited the antioxidant
activities and can be used potentially as a readily accessible source of natural
antioxidant.
451 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018