• Login
    • Library Home
    View Item 
    •   BracU IR
    • School of Data and Sciences (SDS)
    • Department of Mathematics and Natural Sciences (MNS)
    • Bachelor of Science in Biotechnology
    • Thesis (Bachelor of Science in Biotechnology)
    • View Item
    •   BracU IR
    • School of Data and Sciences (SDS)
    • Department of Mathematics and Natural Sciences (MNS)
    • Bachelor of Science in Biotechnology
    • Thesis (Bachelor of Science in Biotechnology)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Phytochemical screening and comparative study of antibacterial assays of carum roxburghianum and trigonella foenum-graecum obtained grom plant seed

    Thumbnail
    View/Open
    11136009_MNS.pdf (2.978Mb)
    Date
    2016-11
    Publisher
    BRAC University
    Author
    Amin, Fatima
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10361/9459
    Abstract
    To control the infections and microbial food spoilage the application of chemical or synthetic antimicrobial agents is one of the ancient techniques for which an enormous number of microbes are escalating resistance to synthetic antibiotics. Therefore, there has been immense concern in the development of efficient and nontoxic antimicrobial agents from natural sources, such as extracts of plants for skirmishing comprised health condition and food preservation. In this current research work, the crude extracts of Carum roxburghianum (radhuni) and Trigonella foenum-graecum (fenugreek) were collected using two solvents namely Ethanol and Methanol. Antibacterial effects of ethanol and methanol extracts taken of second, fifth and seventh days and observed on selected eleven bacteria where extracts of different days had different effects on six bacteria for radhuni showing positive result against Shigella flexinera, Salmonella typhi, Staphylococcus aureus, Bacillus subtilis, Bacillus cereus and Streptococcus pneumonae and fenugreek showed positive result only for Bacillus cereus. The ethanol extracts of both seeds showed the greatest positive result where Radhuni from the fifth day against Bacillus subtilis and Fenugreek from the seventh day against Bacillus cereus. Moreover, comparing the antibacterial activities between radhuni and fenugreek seed extract, the zone of inhibition was greater for radhuni than fenugreek against Bacillus cereus. The activity index of ethanol extract of day five was the highest against Shigella flexineri indicating high sensitivity to the extract. Phytochemical assay such as tests for alkaloids, terpenoids, tannins, saponins, steroids, phenolic compounds, flavonoids and cardiac glycosides was performed on both seed extracts to identify the secondary metabolites present in them. The results achieved from this research can act as a milestone in exploring the new arena of antimicrobial properties of both extracts chiefly for radhuni extracts. This study could be the starting of discovering some novel and less expensive microbial agent against various bacterial species.
    Keywords
    Phytochemical screening; Assays; Carum roxburghianum; Plant seed; Trigonella foenum-graecum
     
    Description
    This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Biotechnology, 2016.
     
    Cataloged from PDF version of thesis report.
     
    Includes bibliographical references (pages 61-66).
    Department
    Department of Mathematics and Natural Sciences, BRAC University
    Collections
    • Thesis (Bachelor of Science in Biotechnology)

    Copyright © 2008-2019 Ayesha Abed Library, Brac University 
    Contact Us | Send Feedback
     

     

    Policy Guidelines

    • BracU Policy
    • Publisher Policy

    Browse

    All of BracU Institutional RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Copyright © 2008-2019 Ayesha Abed Library, Brac University 
    Contact Us | Send Feedback