Background: Echinophora platyloba DC (Apiaceae) is one of the two endemic species of Echinophora genus in Iran. It has many folkloric uses and several biological activities but there is no information about its phytoconstituents. Objective: In this work some of the secondary metabolites were isolated, purified and identified from n-hexane, ethyl acetate and methanol extracts from the aerial pa...

Abstract The sucrose isomerase SmuA from Serratia plymuthica catalyses the production of isomaltulose, an artificial sweetener used in food industry. To suppress formation hygroscopic by-product trehalulose we applied a semirational protein engineering strategy inspired by “battleship” board game. After seven cycles introducing amino acid exchanges around active site and investigating their inf...

This research studies the incidence of type substrate, soluble or particulate, in emergence, development, and inhibition bulking activated sludge systems. It was evaluated using volume index (SVI), mixing liquor-suspended solids (MLSS), microscopic analysis biomass, effluent suspended (ESS). In first experiment, four sequencing batch reactors (SBRs) were fed with substrate at a fixed mass, whil...

The effect of different conservation methods on non-destructive dendrochronology with micro-computed tomography (μCT) waterlogged archaeological wood (WAW) was assessed. To this end, oak samples were conserved alcohol-ether-resin, Kauramin 800®, lactitol/trehalose, saccharose, silicone oil and polyethylene glycol (PEG) treatments subsequent freeze-drying. Tree-ring measurements compared respect...

Glucose, lactose, and saccharose were used as precursors to prepare chars at 400 °C then activated at 800 °C or 1000 °C in closed vessels with controlled amounts of oxygen penetrating through nanopores in the vessel walls. There are correlations between the porosity, amounts of residual O- and H-containing functionalities, and electroconductivity of amorphous carbons studied. The pore size dist...

1. Spores of the Bacillus welchii group of bacteria were found on 100 per cent of the uniforms of Belgian soldiers who had come directly from the trenches, and in the meshes of all the samples examined of the new cloth from which the uniforms were made. 2. In fifteen out of twenty fresh war wounds members of this group of bacteria were found. Of the fifteen patients, only three later developed ...