Aims: In this study, five essential oils (EOs) from different species of , for R.C., 'super A', 'super Z' and and its hybrids Lavender were evaluated against 26 dust-isolated fungal strains from North Africa.
View Article and Find Full Text PDFL. contains high levels of rutin, which has great potential for use in pharmaceutical products for the treatment of diseases related to the cardiovascular and circulatory systems. We proposed a method of extracting rutin from by using a green solvent.
View Article and Find Full Text PDFThe present study provides the first information on the chemical composition and acetylcholinesterase inhibitory activity of the essential oil (EO) from the leaves of Weeras. & R.M.
View Article and Find Full Text PDFWe propose an active-space approximation to reduce the quantum resources required for variational quantum eigensolver (VQE). Starting from the double exponential unitary coupled-cluster ansatz and employing the downfolding technique, we arrive at an effective Hamiltonian for active space composed of the bare Hamiltonian and a correlated potential caused by the internal-external interaction. The correlated potential is obtained from the one-body second-order Møller-Plesset perturbation theory (OBMP2), which is derived using the canonical transformation and cumulant approximation.
View Article and Find Full Text PDFUsing waste materials to extract biologically active ingredients with green solvents is a new trend for sustainable development. Herein, different types of deep eutectic solvents (DESs) and surfactant solvents (SSs) were used to extract curcumin from turmeric residues (TRs), among which choline chloride-propylene glycol (ChCl-Pro) showed the highest yield. The optimized extraction conditions included a ChCl : Pro ratio of 1 : 2, water content in the DESs of 20%, solid : liquid ratio of 1 : 40 maintained for 60 min at 50 °C, and a TR particle size of 0.
View Article and Find Full Text PDFA new flavanol derivative, (2R,3R)-3-acetoxy-7-hydroxy-3',4'-methylenedioxyflavan (1), was co-isolated from the rhizomes of Zephyranthes ajax Hort. with the following seven known compounds: 7-hydroxyflavan (2), 7,4'-dihydroxyflavan (3), 7,4'-dihydroxy-8-methylflavan (4), 7,3'-dihydroxy-4'-methoxyflavan (5), 5,4'-dihydroxy-7-methoxy-6-methylflavan (6), 7-hydroxy-3',4'-methylenedioxyflavanone (7) and haemanthamine (8). Their structures were elucidated by combining 1D-/2D-NMR, CD, UV and HRESIMS data, and comparisons with reported data in literature were made.
View Article and Find Full Text PDFIntroduction: The present study aimed to determine the chemical compositions and bioactivities of the essential oil of Atalantia sessiflora Guillaumin (A. sessiflora), including antibacterial, antimycotic, antitrichomonas, anti-inflammatory and antiviral effects.
Methodology: The essential oil from leaves of A.
In the prevention of epidemic and pandemic emerging and neglected viral infections, natural products are an important source of lead compounds. Škorničkis is a rhizomatous herb growing in the forest of central Vietnam. essential oil (Hb EO) was recently characterised by our group as endowed of antimicrobial activity against Methicillin-Resistant strains.
View Article and Find Full Text PDFThe rapid emergence of drug-resistant strains and novel viruses have motivated the search for new anti-infectious agents. In this study, the chemical compositions and cytotoxicity, as well as the antibacterial, antifungal, antitrichomonas, and antiviral activities of essential oils from the leaves, rhizomes, and whole plant of were investigated. The GC/MS analysis showed that β-pinene, -β-caryophyllene, and α-humulene were found at high concentrations in the essential oils.
View Article and Find Full Text PDFThe present study aimed to determine the bioactivities of essential oils extracted from the leaves of and , including cytotoxicity, antiviral, antibacterial, antimycotic, and antitrichomonas effects. Herein, it was indicated that and oils showed no cytotoxicity on normal cells, namely MT-4, BHK-21, MDBK, and Vero-76. oil (i) exhibited the strongest inhibition against with MIC and MLC values of 2% (); (ii) showed MIC and MLC values of 8% () in ; and (iii) in the remaining strains, showed MIC and MLC values greater than or equal to 16% ().
View Article and Find Full Text PDFThe present study aimed to determine the antimicrobial activity and chemical composition of leaves-extracted essential oil of Chaowasku, D.T. Ngo and H.
View Article and Find Full Text PDF(1) Background: Plants possess many acyl-acyl carrier protein (acyl-ACP) thioesterases (TEs) with unique specificity. One such TE is methylketone synthase 2 (MKS2), an enzyme with a single-hotdog-fold structure found in several tomato species that hydrolyzes 3-ketoacyl-ACPs to give free 3-ketoacids. (2) Methods: In this study, we identified and characterized a tomato MKS2 homolog gene, namely, , in the genome of soybean (.
View Article and Find Full Text PDFThe oil from the leaves of (Miq.) Swingle was obtained by hydrodistillation and investigated by gas chromatography combined with mass spectrometry (GC/MS), the anti-inflammatory effect of the oil was examined on a LPS-induced RAW264.7 cells.
View Article and Find Full Text PDF