Facebook Twitter Instagram
    Trending
    • Editorial
    • Antimicrobial Activity of Acacia disparrima Benth. and Acacia leiocalyx Pedley Leaf Extracts in Combination with Antibiotics against Bacterial Triggers of Selected Autoimmune Diseases
    • Tasmannia lanceolata (Poir.) A.C.Sm. Berry and Leaf Extracts Inhibit Proliferation and Induce Apoptosis in Selected Human Carcinoma Cell Lines
    • Therapeutic Potential of Arctium lappa L. Root Extracts to Inhibit Gastrointestinal Bacterial Pathogens and Treat Gastrointestinal Disease
    • Bioactive Compounds in Aqueous Extract of Pilis, A Forehead Transdermal Herbal Medicine
    • The Janus Corner
    • Medicinal Plant Images
    • Upcoming Events
    Facebook Twitter Instagram
    Pharmacognosy Communications
    • Home
    • About Journal
      • Aim and Scope
      • Editorial Board
      • Indexing Info
      • Contact Us
    • Browse Issues
      • Articles in Press
      • Current Issue
      • Past Issues
    • For Authors
      • Instructions to Authors
      • Article Processing Charges
      • Submit your article
      • Downloads
    Pharmacognosy Communications
    Original Article

    Alpinia cearulea (R.Br.) Benth Leaf Extracts Inhibit the Growth of a Panel of Bacterial Pathogens

    October 9, 2018Updated:August 12, 20212 Mins Read

    Lindiwe Nomathemba Mpala1, Getmore Rumbudzai Chikowe1, Ian Edwin Cock1,2,*
    1Environmental Futures Research Institute, Griffith University, 170 Kessels Rd, Nathan, Brisbane, Queensland 4111, Australia.
    2School of Natural Sciences, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Brisbane, Queensland 4111, Australia.

    Pharmacognosy Communications,2018,8,4,146-152.
    DOI: 10.5530/pc.2018.4.31
    Published: October 2018
    Type: Original Article

    ABSTRACT

    Introduction: Alpinia caerulea is a perennial herb which grows in coastal regions of Australia. All parts of this species are consumed as a bushfood. Furthermore, A. caerulea is taxonomically related to several plant species with well documented antimicrobial properties. Despite this, A. caerulea leaf solvent extractions have not previously been examined for antibacterial properties. Methods: The antimicrobial activity of A. caerulea leaf solvent extractions was investigated by disc diffusion and growth time course assays against a panel of pathogenic bacteria. The growth inhibitory activity was quantified by MIC determination. Toxicity was determined using the Artemia franciscana nauplii bioassay. Results: Methanolic and aqueous A. caerulea leaf extracts inhibited the growth of a range of gram positive and gram negative bacterial species. The methanolic extract was generally a more potent growth inhibitor than the aqueous extract. The methanolic and aqueous extracts were particularly potent inhibitors of S. marcenscens growth, with MIC values as low as 188 μg/mL for the methanolic extract. P. mirabilis (MICs of 785 and 976 μg/mL for the methanolic and aqueous extracts respectively) and K. pneumoniae growth (MICs of 1167 and 924 μg/mL for the methanolic and aqueous extracts respectively) were also particularly susceptible to the A. caerulea leaf extracts. The antibacterial activity of the methanolic and aqueous A. caerulea leaf extracts was further investigated by growth time course assays which showed significant growth inhibition in cultures of S. marcenscens and P. mirabilis within 1 h of exposure. All extracts were determined to be nontoxic in the Artemia franciscana nauplii bioassay, indicating their safety for internal use as well as for topical uses. Conclusion: The lack of toxicity of the A. caerulea leaf extracts and their growth inhibitory bioactivity against a panel of pathogenic bacteria indicate their potential in the development of antibiotic agents.

    Key words: Alpinia caerulea, Zingiberaceae, Native ginger, Blue berry ginger, Rheumatoid arthritis, Ankylosing spondylitis, Antibacterial activity, Medicinal plants.

    Download PDF

    Related Posts

    Antimicrobial Activity of Acacia disparrima Benth. and Acacia leiocalyx Pedley Leaf Extracts in Combination with Antibiotics against Bacterial Triggers of Selected Autoimmune Diseases

    July 20, 2023

    Tasmannia lanceolata (Poir.) A.C.Sm. Berry and Leaf Extracts Inhibit Proliferation and Induce Apoptosis in Selected Human Carcinoma Cell Lines

    July 20, 2023

    Therapeutic Potential of Arctium lappa L. Root Extracts to Inhibit Gastrointestinal Bacterial Pathogens and Treat Gastrointestinal Disease

    July 20, 2023
    Recent Posts
    • Editorial
    • Antimicrobial Activity of Acacia disparrima Benth. and Acacia leiocalyx Pedley Leaf Extracts in Combination with Antibiotics against Bacterial Triggers of Selected Autoimmune Diseases
    • Tasmannia lanceolata (Poir.) A.C.Sm. Berry and Leaf Extracts Inhibit Proliferation and Induce Apoptosis in Selected Human Carcinoma Cell Lines
    • Therapeutic Potential of Arctium lappa L. Root Extracts to Inhibit Gastrointestinal Bacterial Pathogens and Treat Gastrointestinal Disease
    • Bioactive Compounds in Aqueous Extract of Pilis, A Forehead Transdermal Herbal Medicine
    • The Janus Corner
    Facebook Twitter Instagram Pinterest
    © 2023 Phcog.net. Designed by EManuscript.

    Type above and press Enter to search. Press Esc to cancel.

    Scroll Up