Greater cardamom (Amomum subulatum Roxb. Zingiberaceae) commonly known as “Bari ilaichi” is a well known plant used in Ayurvedic and Unani medicine. It has been used for the treatment of various diseases and disorders like gastric ulcer. Therefore antimicrobial activity of petroleum ether, methanol and aqueous extracts from leaves and roots, essential oil and isolated vasicine from A. vasica were tested against various microorganisms. Antimicrobial activity was done by disc diffusion method. The zone of inhibition observed was compared with that of standard drugs, ciprofloxacin and fluconazole. Minimum inhibitory concentration was determined against microorganisms used in the study. The results of this study reveal that methanol extract of fruits of A. subulatum shows remarkable antimicrobial activity against Escherichia coli whereas in case of other microorganisms used it was found inferior to the standard drug used. Methanol extract of rind showed good antimicrobial activity against Staphylococcus aureus. It was found that the essential oil isolated was effective against majority of microorganisms used viz. Bacillus pumilus, Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Saccharomyces cerevisiae.
Hydrodistilled oil obtained from the stem bark of Myrica esculenta Buch. Ham. ex D. Don (yield 0.3%) was analysed by capillary GC and GC-MS. The volatile oil consisted mainly of n-hexadecanol (25.2%), eudesmol acetate (21.9%), palmitic acid (11.6%), cis-β-caryophyllene (8.7%), n-pentadecanol (7.7%) and n-octadecanol (7.6%). The oil was found to be a potential antimicrobial agent against Bacillus pumilus, Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Aspergillus niger and Saccharomyces cerevisiae. The essential oil exhibited significant topical anti-inflammatory activity compared to standard drug in Swiss albino mice ear.
The study was aimed to trace out antihyperglycemic potentials of Nymphaea alba leaves using in vitro and in vivo approaches. In, in vitro study, determination of IC50 of Nymphaea alba extracts was done using α-amylase and α-glucosidase inhibition assay. In α-amylase, Nymphaea alba methanol extract (NAME) exhibited maximum inhibition 56.77±1.23% at 125µg/ml in comparison to 66.7±0.94 % of standard acarbose. In α-glucosidase, NAME exhibits 59.89±0.92, while standard acarbose showed 70.31±1.25 % inhibition. The in vivo study was performed on diabetic rats, made diabetic by Streptozotocin. 200mg/kg and 400mg/kg NAME was administered orally, which significantly (
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