Phytochemicals, Antioxidant Activity, and Antimicrobial Effects of the Fractions of Corrigiola telephiifolia Pourr.

Abstract

This study aims to provide new data on the chemical composition and biological properties of Corrigiola telephiifolia, demonstrating the influence of different extraction solvents and geographic locations on these properties. It presents novel findings on the phytochemical contents, antioxidant activity, and antimicrobial effects of various fractions of Corrigiola telephiifolia Pourr. roots collected from three distinct regions in Morocco. Our results reveal significant variations in TPC, TFC, and antioxidant activity depending on the extraction fraction and geographic origin. Notably, The fraction of raw extract exhibited the highest TPC values in all sampled sites (44.76±0.05 in Agouray, 35.89±0.02 in Sefrou, and 14.99±0.03 mg GAE/g dw in Azrou). The peak values of TFC were recorded in the fraction of raw extracts for all sampling sites (20.80±0.01 in Agouray, 18.62±0.01 in Sefrou, and 11.54±0.01 mg QAE / g dw in Azrou). The highest values of FRAP were recorded in the fraction of raw extract of Agouray (2.00±0.00). Furthermore, the hexane fraction showed the highest DPPH and Chelating power with IC50 respectively equal to 0.46±0.02 mg. mL-1 and 0.10±0.00mg. mL-1. All fractions showed significant and variable antibacterial activities. The highest anti-microbial activity was recorded in in ethyl acetate fraction of the sample from Agouray against E. coli (MIC=0.039). The highest anti-microbial effect was recorded also in ethyl acetate fraction against E. coli and P. aeruginosa, and raw fraction against B. subtilis and P. aeruginosa (MBC= 0.313 against both microorganisms). Agouray consistently demonstrated superior results across multiple parameters, indicating it as the best region for the highest phytochemical and bioactive properties. This study evaluated the chemical compounds and biological properties of C. telephiifolia pourr. and demonstrated the effect of the sampled area and solvent.

Keywords

• corrigiola telephiifolia
• polyphenols
• flavonoids
• antioxidant activity
• antimicrobial activity