Etude de l'activité antimicrobienne de l’extrait méthanolique des graines de Chia Salvia Hispanica

Abstract

Salvia hispanica L. is an annual herb widely distributed and used throughout the world for its culinary and medicinal properties. Salvia hispanica is rich in bioactive compounds such as antioxidants and anti-inflammatories, which makes it a very beneficial food for health. The purpose of our work was the extraction of essential oils form chia seeds by hydrodistillation as well as the preparation of a methanol extract in order to study: phytochemical screening which is a general method to detect the presence of chemical compounds in plants, determine the specific dosage of polyphenols and flavonoids, the evaluation of the antioxidant activity of the methanolic extract and the evaluation of the anti-inflammatory activity of the methanolic extract of our seeds .The last part of our work was devoted to the study of the antagonistic effect of the methanolic extract of chia salvia hispanica seed on the growth of two pathogenic bacteria ATCC tests .The results indicate a high content of total polyphenols and flavonoids.The methanolic extract of Chia spanica seeds seems to possess high and considerable antioxidant and anti-inflammatory properties with a remarkable antimicrobial activity via the targeted strains (Escherichia coli, Staphylococcus aureus).