Butia purpurascens is an endemic and threatened palm tree species that occurs in open areas of the Brazilian Cerrado, predominantly in southwestern Goiás. The leaves of this palm tree are harvested by local people to fabricate brooms. This study evaluated changes in vegetative and reproductive phenology in two different natural populations of this palm tree: one population with leaf harvesting ...

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Photosynthetic responses to light environment can be useful measurements to determine favorable habitat conditions for the conservation and cultivation of medicinal species. The eight models are used to explore the best model for describing light-response curves in two Bergenia species. The results show that the light-response curves of Bergenia tianquaninsis and Bergenia purpurascens were best...

Temu blenyeh (Curcuma purpurascens Bl) is a species of curcuma that still rarely studied. thought to have antioxidant activity so it can reduce free radical activity. The purpose this study was screen phytochemicals and determine the temu extract using 2,2-Diphenyl-2-picrylhydrazyl (DPPH) method. macerated with 96% ethanol solvent, then its tested method at maximum wavelength 515.8 nm vitamin C...

During a screening program for bioactive natural products, a potential Streptomyces sp was isolated from soil. On the basis of biochemical, cultural, physiological and 16S rRNA gene analysis, it was identified as Streptomyces purpurascens. The isolate was grown in liquid medium and the crude antibiotic complex was obtained by ethyl acetate extraction. Seven purified fractions were obtained by p...