Ian E. Cock1,21Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.2School of Natural Sciences, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.DOI: 10.5530/pc.2024.3.15 ABSTRACT Dear Readers and Authors, I am pleased to bring you Volume 14, Issue 3 of Pharmacognosy Communications. In this issue, we present an evaluation of the anti-bacterial activity of commercial products prepared using Eucalyptus major (Maiden) Blakely and Melaleuca alternifolia (Maiden and Betche) Cheel leaves. The products were screened for anti-bacterial activity against several bacterial pathogens, including Methicillin-Resistant S. aureus (MRSA) and some Extended-Spectrum Β-Lactamase (ESBL) producing bacterial strains. Notably, the…
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Amadeus Cocis1, Ian Edwin Cock1,2,*1School of Environment and Science, Griffith University, Nathan, Queensland, AUSTRALIA.2Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Nathan, Queensland, AUSTRALIA.DOI: 10.5530/pc.2024.3.16 ABSTRACT Background: Nigella sativa L., Anongessius latifolia (Roxb. ex DC.) Wall. ex Euill. and Perr. and shilajit have been used traditionally to treat numerous infectious diseases, including many caused by bacterial pathogens. However, extracts of these traditionally medicines have been poorly studied and are yet to be tested for the ability to inhibit the growth of bacterial triggers of multiple sclerosis and rheumatic fever. Materials and Methods: Antimicrobial activity of selected plant…
Jinwoo Kim1, Enoch John Rusford1, Gagan Tiwana1, Sean Robert Alcorn1, Ian Edwin Cock2,3, Matthew James Cheesman1,*1School of Pharmacy and Medical Sciences, Gold Coast Campus, Griffith University, Gold Coast, AUSTRALIA.2School of Environment and Science, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.DOI: 10.5530/pc.2024.3.18 ABSTRACT Background: Nigella damascena L. (ND) seeds have been incorporated into traditional plant-based medicinal systems for millennia. However, there are conflicting reports on the antibacterial activities of the seed extracts, although phytochemicals known to possess antibacterial activity have been found in the seeds of this species. The toxicities of the extracts have not been studied previously. Aim: This work assesses the…
Biao Chen1, Yelu Liu1, Ian Edwin Cock*1, 21School of Environment and Science, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.2Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.DOI: 10.5530/pc.2024.3.17 ABSTRACT Introduction: An increase in antibiotic resistance and a corresponding decrease in antimicrobial discovery have directed researchers towards alternative therapies, including plant-based medicines. However, synergistic combinations of plant extracts with conventional antibiotics may be a far more effective approach in overcoming resistance and potentiating the activity of antibiotics that are otherwise ineffective against resistant bacterial strains. Materials and Methods: The antibacterial activity of Taraxacum officinale (L.) Weber ex F.H. Wigg.…
Eléonore Dumont1,2, Marie-Elisabeth Cordon1,2, Linn Baghtchedjian1,2, Muhammad Jawad Zai1,3, Ian Edwin Cock1,3,*1Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.2Ecole De Biologie Industrielle, Cergy, FRANCE.3School of Environment and Science, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.DOI: 10.5530/pc.2024.3.19 ABSTRACT Background: The increased prevalence of antibiotic-resistant bacterial pathogens has substantially decreased the efficacy of some antibiotics and has rendered others completely ineffective. Widespread bacterial resistance to β-lactam antibiotics (including resistance to the second-generation drug methicillin) is particularly concerning and new antibiotic therapies are urgently needed. Materials and Methods: The antibacterial activity of commercially sourced water-soluble Eucalyptus major and Melaleuca alternifolia…
Ian E Cock1,21School of Environment and Science, Nathan Campus, Griffith University, Brisbane, Queensland, AUSTRALIA.2Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.DOI: 10.5530/pc.2024.3.20 ABSTRACT Periodontal (gum) disease is a serious disease that may result in bones retracting from teeth, loss of teeth (or bone) and halitosis (bad breath). In its early stages (gingivitis), the gums may become swollen, inflamed and may bleed. Numerous plants have been used in traditional medicine systems to prevent and treat periodontal disease, with many plants highlighted for their efficacy.1-4 A recent study reported that matcha tea (prepared from finely ground…
Ian E Cock1,2,*1Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.2School of Environment and Science, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.DOI: 10.5530/pc.2024.3.21 ABSTRACT Eremophila racemosa (Endl.) F.Muell. (family Scrophulariaceae) is an endemic Australian plant. Several Eremophila spp. were used in traditional First Australian medicine to treat a wide variety of ailments.1,2 Additionally, many other members of the genus Eremophila also have traditional medicinal uses. The genus consists of more than 200 species that grow in semi-arid and arid regions of Australia. Multiple Eremophila spp. are used astraditional medicines by the First Australians…
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Ian E. Cock1,21Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA.2School of Natural Sciences, Nathan Campus, Griffith University, Nathan, Brisbane, Queensland, AUSTRALIA. Dear Readers and Authors I am pleased to bring you Volume 14, Issue 2 of Pharmacognosy Communications. In this issue, we present several studies, including an upscaled protocol for the extraction of antibacterial compounds from Terminalia ferdinandiana leaves. This study compares and contrasts the yields and bioactivity of the extracts produced by this upscaled method and compares it to laboratory scale pilot extraction protocols. Another study presented in this issue evaluates the…
Jinwoo Kim1, Enoch John Rusford1, Gagan Tiwana1, Sean Robert Alcorn1, Ian Edwin Cock2,3, Matthew James Cheesman1,*1School of Pharmacy and Medical Sciences, Gold Coast Campus, Griffith University, Gold Coast, AUSTRALIA.2School of Environment and Science, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.3Centre for Planetary Health and Food Security, Nathan Campus, Griffith University, Brisbane, AUSTRALIA. DOI: 10.5530/pc.2024.2.9 ABSTRACT Background: Terminalia ferdinandiana Exell. fruit have been used by the First Australians as a nutritious food and as a medicine for thousands of years. The antibacterial properties of T. ferdinandiana fruit extracts are well reported. However, the therapeutic potential of plants growing in different locations and…