Archive \ Volume.7 2018 Issue 4

Phytochemical, Free Radical Scavenging and Antimicrobial Activities of the Maize Stigmas, Collected of Ain Mlila

Karouche Saida , Khaldi Sofiane , Benbott Amel
Abstract

The purpose of this study is to quantify the bioactive substances contained in the stigmas of Algerian corn in the area Ain mlila, the sample was subjected to a maceration in the methanol, and the content of total phenols and flavonoids using the Folin-Ciocalteu method and the trichloride of aluminum respectively showed that the results vary between 91.51 ± 2.83 to 313.58 ± 0.01µg AGE/mg of extract for the polyphenols and between 11.26 ± 2.64 to 101.59 ± 0.02µg QE/mg of extracts for the flavonoids. These results show the richness of the stigma of corn studied in phenolic compound. The anti-radical activity has proved that our extract is more active (84.57%) than that of ascorbic acid (83.4%) used as control. It is found that reducing activity is strongly related to the content of polyphenols with R2 = 0.9997. Antibacterial activity was also tested on four bacterial strains (gram + and gram -) according to the disk diffusion method. No activity was reported on the reference strain Escherichia coli (ATCC 25921) and Staphylococcus aureus (ATCC 25923) and the two clinical strains tested.


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