{'fraction_non_alphanumeric': 0.02148664343786295, 'fraction_numerical': 0.004645760743321719, 'mean_word_length': 6.3008474576271185, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Phytochemical Investigation, Antioxidant and Antimicrobial Activities of Ravenala Madagascariensis (Sonn.) Family Strelitziaceae Growing in Egypt

Introduction: Ravenala madagascariensis (Sonn.) family Strelitziaceae, commonly called traveler’s tree orpalm; it is used traditionally in India as tea made from young leaves for treatment of diabetes. On the otherhand its seed found to have antiseptic properties.Objective: Phytochemical investigation and isolation as well as testing the antioxidant and antimicrobialactivities of the crude total and different successive fractions.Material and Method: The leaves total ethanol extract was subjected for phytochemical screening. Then- BuOH fraction was fractionated using chromatographic isolation. Total phenolics and flavonoids andantioxidant activity of the crude total ethanol extract as well as n-hexane, CH2Cl2, EtOAc and n- BuOHsuccessive fractions were determined using ABTS assays. On the other hand the antimicrobial of the crudetotal ethanol was carried out against 13 microorganisms using agar well diffusion method.Results: Phytochemical screening showed the presence of flavonoids, tannins and sterols. Three phenoliccompounds were isolated from the n- BuOH fraction and they were identified using different spectroscopictechniques. The different fractions showed high antioxidant activities especially EtOAc fraction that showed88.96% for ABTS inhibition. Crude total ethanol extract showed selective moderate antimicrobial activityagainst the tested strains of Cryptococcus neoformans, Bacillus cereus and Serratia marcenscens.Conclusion: The ethyl acetate fraction showed significant antioxidant activity probably due to presence ofthe flavonoids contents.