Abstract. Shabira AP, Tjahjoleksono A, Lestari Y. 2022. Endophytic actinobacteria of Eleutherine palmifolia as antioxidant producer. Biodiversitas 23: 4209-4215. can generate bioactive compounds similar to those produced by the host plant. The (L.) Merr is an example a widely utilized plant in Dayak community. Flavonoids, which have effects, are among found E. palmifolia. activity endophytic re...

Essential oils of peppermint Mentha piperita L. (Lamiaceae), which are used in flavors, fragrances, and pharmaceuticals, were investigated for their antimicrobial properties against 21 human and plant pathogenic microorganisms. The bioactivity of the oils menthol and menthone was compared using the combination of in vitro techniques such as microdilution, agar diffusion, and bioautography. It w...

Background and objectives: The cholinergic deficit correlates with the severity of Alzheimer’s disease. The cholinergic function can be improved by AChE inhibitors blocking this key enzyme in the breakdown of acetylcholine. Based on traditional medicine, during two last decades the use of herbal medicinal substances in dementia therapy has been studied. The fruit extract of <em...

The present study reports the Gas Chromatography-Mass Spectrometry (GC-MS) evaluation of the hexanes and dichloromethane fractions from extracts of the red alga Centroceras clavulatum (C. Agardh) Montagne. Twenty three compounds were identified, totaling ca. 42% of both fractions (0.18 g mass extract). The main constituents of the fractions were hexadecanoic acid (17.6%) and pentadecanoic acid ...

Chemical composition and antimicrobial activity of the hydrodistilled essential oils from aerial parts and roots of Aster subulatus Michx. (Asteraceae) from Turkey were investigated. The essential oils of A. subulatus were analyzed by combination of GC-FID and GC-MS. Twenty-nine components comprising 79.0% of the essential oil of the roots and forty-nine components comprising 89.3% of the essen...

The in vitro antibacterial activities of 29 traditional medicinal plants used in respiratory ailments were assessed on multidrug resistant Gram-positive and Gram-negative bacteria isolated from the sore throat patients and two reference strains. The methanolic, n-hexane, and aqueous extracts were screened by the agar well diffusion assay. Bioactive fractions of effective extracts were identifie...

BACKGROUND This study evaluated the antibacterial activity of some plants used in folklore medicine to treat diarrhoea in the Eastern Cape Province, South Africa. METHODS The acetone extracts of Acacia mearnsii De Wild., Aloe arborescens Mill., A. striata Haw., Cyathula uncinulata (Schrad.) Schinz, Eucomis autumnalis (Mill.) Chitt., E. comosa (Houtt.) Wehrh., Hermbstaedtia odorata (Burch. ex ...

To prevent microbial growth, chemical solvents are typically utilized. However, hazardous to human health with low antimicrobial effects. Metallic-element (such as copper, silver, and gold) nanoparticles have many applications in biotechnology biomedicine. Copper (CuNPs) efficient owing their antimicrobial, anti-inflammatory, anti-proliferative properties. The objective of this study was perfor...

In the course of biosynthesis of cobamides and their related compounds, a variety of intermediates can be found in addition to the final products. For the isolation, identification, and characterization of these substances, column chromatography, paper electrophoresis and physicochemical procedures such as ultraviolet and visible spectrophotometry have been employed. Sometimes, microbiological ...

An endophytic fungus Phomopsis liquidambaris CBR-15, was isolated from Cryptolepis buchanani Roem. (Asclepiadaceae) and identified by its characteristic culture morphology and molecular analysis of the ITS region of rDNA and intervening 5.8S rRNA gene. The impact of different culture media on biosynthesis of antimicrobial metabolites was tested by disc diffusion assay. Polyketide synthase gene ...