EVALUATION OF ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF BARK & LEAF EXTRACTS OF BAUHINIA ACUMINATA
Md. Raza Ul Karim*, Tufikul Islam, Samiran Kumar Sadhu, Md. Manjur Rahman, Bhuiyan Md. Ashiqur Rahman and Md. Nasir Uddin
The prime interest of the current study was to investigate the antioxidant & antimicrobial activity from the
ethanolic extracts ofbark and leaf of the herb Bauhinia acuminata.Three antioxidant methods were followed to
investigate antioxidant property. In total phenol content determination,both leaf and bark extracts showed the value
of 29.00 mg/g and 32.00 mg/g as Gallic Acid Equivalent (GAE) respectively. In total Tannin content determination
both leaf and bark extracts showed the value of 42.00 mg/g and 46.00 mg/g as Tannic Acid Equivalent (TAE)
respectively.TheDPPH free radical scavenging activity ofboth leaf and bark extracts with IC50is30.00μg/mL and
35.00μg/mL respectively. During antimicrobial activity both the bark and leaf extracts showed antimicrobial
activities comparing with standard antibiotic Kanamycin. Further studies are needed to isolate active compounds.
Keywords: Bauhinia acuminata, DPPH, Kanamycin.
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