Polyphenolic acids are the widely occurring natural products in almost each herbal plant,
among which rosmarinic acid (RA, C18H16O8) is well-known, and is present in over 160 …

Betulinic acid, a pentacyclic triterpene, is distributed in a variety of plants, such as birch,
eucalyptus and plane trees. It shows a wide spectrum of biological and pharmacological …

Optimization of phenolic extraction from Orthosiphon stamineus was carried out in present
study by investigating the effects of ethanol concentration (0-100%, v/v), extraction time (60 …

Advances in the flavonoid field have been nothing short of spectacular over the last 20
years. While the medical field has noticed flavonoids for their potential antioxidant …

Artemisia annua is currently the only commercial source of the sesquiterpene lactone
artemisinin. Since artemisinin was discovered as the active component of A. annua in early …

Leaf powder of Orthosiphon stamineus was extracted with the following solvents; distilled
water, 50% aqueous methanol, methanol, 70% aqueous acetone and chloroform, at 2, 4 and …

In vitro mutagenesis by means of gamma irradiation can be used to produce economically
improved mutants. Gamma irradiation was used to induce biochemical changes in a …

Background In the present study, we tested a 50% ethanolic extract of Orthosiphon
stamineus plants and its isolated bioactive compound with respect to their α-glucosidase …

Medicinal plants have gained much interest in the prevention and treatment of common
human disease such as cold and fever, hypertension and postpartum. Bioactive compounds …

An important method of drug discovery is examination of diverse life forms, including
medicinal plants and natural products or bioactive compounds isolated from these sources …