From the ethyl acetate and methanol extract of the aerial parts of Satureja atropatana Bonge, which belongs to the Lamiaceae family, four flavonoids were isolated. Their structures were determined to be 5,6,3'-trihydroxy-7,8,4'-trimethoxyflavone (1), 5,6-dihydroxy-7,8,3',4'-tetramethoxyflavone or 5-desmethoxynobiletin (2), 5,6,4'-trihydroxy-7,8,3'-trimethoxyflavone or thymonin (3) and luteolin ...

Drying allows water to be removed and food preserved, however, this operation can degrade color. Punamuña leaves are aromatic used for medicinal purposes in the Peruvian Andes. This research aimed determine model drying kinetics, diffusivity coefficient (Def), activation energy (Ea), color of punamuña leaves. A horizontal dryer was at 40, 50, 60 °C airspeed 1.0 0.5 m / s; kinetics modeled with ...

In a male-based revision of ants of the subfamily Amblyoponinae from the Southwest Indian Ocean islands (SWIO: Comoros, Madagascar, Mauritius, Mayotte, Reunion, and Seychelles), we explore and reconsider male morphological characters that distinguish genera within the group. Our investigation redefines Amblyopone Erichson sensu Brown (1960), here referred to as Amblyopone sensu lato, into three...

THE TITLE COMPOUND [SYSTEMATIC NAME: (E)-1-(2-hydroxy-4,6-dimethoxyphenyl)-3-phenylprop-2-en-1-one], C(17)H(16)O(4), has an aromatic ring at both ends of the -CH= CH-C(=O)- fragment with the -CH=CH- bond in a trans configuration. The phenyl ring is nearly coplanar with this fragment [dihedral angle 4.8 (3) °] as is the hy-droxy-ldimeth-oxy-lphenyl unit [dihedral angle 6.3 (3) °]. The hy-droxy g...

Background and objectives: There are several methods to assess the in vitro capability of heme inhibitory activity of antimalarial compounds; most of them require some specific equipment or toxic substances and sometimes the needed materials are not accessible. Regarding the necessity and importance of optimizing and standardizing experimental conditions, the present s...