malaria is a major international public health problem. drug-resistant parasites have made treatment and control of malaria more difficult. therefore, safe, affordable and effective new drugs are urgently needed. traditional medicine is an important source for new drugs. determining the ancient medicinal books was the first step of this study for finding malaria or disease that has symptoms lik...

Background & Aims: Access to the non-documented experiences and information is one of the valuable ways for developing pharmaceutical sciences and a basis for production of new drugs. Ethnobotany is the science of recovering endangered non-documented traditions. Protection of these traditions would be a precious guide to gain access to new drug sources. The aim of this study was to identify and...

We established a simple HPLC method to determine the activity and stereochemistry of the chiral mandelonitrile synthesized from benzaldehyde and cyanide, and applied it to screen for hydroxynitrile lyase (HNL) activity of plant origin. A total of 163 species of plants among 74 families were examined for (R)- and (S)-HNL activities using the method. We discovered that homogenate of leaves of Bal...

Cedrela Boliviina. Inflorescence sparsely and minutely canescent. Leaves (only the uppermost seen) 5 dm. long, the petiole 1 dm. long, slightly grooved upon the upper surface, like the rachis, the leaflets sub-opposite, 7 to 9 pair, the internodes about a third as long as their leaflets. Petiolules very slender, about 6 mm. long, articulating by a thin, disk-like base. Blades 8 to 16 cm. long, ...

INTRODUCTION Safe wastewater treatment methods have always been a challenge to the society. During the last 50 years, pollution abatement measures have been given high priority, particularly discharges from the growing urban areas. Early objectives were to reduce the emissions of organic matter and pathogens, while other objectives related to the emission of heavy metals and nutrients (phosphor...

Plant metabolic engineering has recently enabled the synthesis of a range of polyhydroxyalkanoates as well as a protein-based polymer. These novel compounds can be harvested from plants as a renewable source of environmentally friendly polymers or can be used to change the physical properties of plant products, such as fibres.

This document sets forth procedures for establishing maximum emissions levels for all fossil-fuelbased thermal power plants with a capacity of 50 or more megawatts of electricity (MWe) that use coal, fuel oil, or natural gas.1 Conventional steam-producing thermal power plants generate electricity through a series of energy conversion stages: fuel is burned in boilers to convert water to high-pr...

Agricultural intensification is critical to meet global food demand, but intensification threatens native species and degrades ecosystems. Sustainable intensification (SI) is heralded as a new approach for enabling growth in agriculture while minimizing environmental impacts. However, the SI literature has overlooked a major environmental risk. Using data from eight countries on six continents,...

Tuberculosis, also called TB, is currently a major health hazard due to multidrug-resistant forms of bacilli. Global efforts are underway to eradicate TB using new drugs with new modes of action, higher activity, and fewer side effects in combination with vaccines. For this reason, unexplored new sources and previously explored sources were examined and around 353 antimycobacterial compounds (N...