High performance liquid chromatography coupled with photodiode array detector (HPLC-DAD) has been reported to quantify isolated flavonoids or these compounds in complex biological matrices, such as Chinese herbal drugs and products from factories. This work was designed, therefore, to develop an HPLC-DAD system to separate quercetin, luteolin and apigenin and to quantify them in extractive solu...

An alkalophilic bacterium, Bacillus cereus produced an extracellular alkaline protease, which was found to be active at high temperature and pH range, suitable for commercial laundry detergents. B. cereus protease was partitioned in different aqueous two-phase systems such as PEG/dextran, PEG/potassium phosphate, PEG/sodium citrate, PEG/magnesium sulphate and PEG/sodium dihydrogen phosphate and...

This paper deals with propionic acid extraction by tri-n-butylphosphate (TBP), a phosphorusbonded, oxygen-containing extractant dissolved in inert diluent (decane and kerosene) and a modifier (1decanol) at different temperature in the range of 298 K to 333 K. Active diluents (1-decanol) that enhance the extracting power of amines and phosphorus-bonded, oxygen-containing extractants are more fav...

Liquid biofuels as a source of renewable energy represents an important alternative to the fossil fuels. Currently, these biofuels (mainly biodiesel and bioethanol) are produced from oilseed crops and from sugar and starch containing materials. The integration of the production of these two biofuels using a single source of biomass as a raw material may allow the intensification of liquid biofu...

Extractive fermentation using aqueous biphasic systems (ABS) is a promising separation process since it provides a nondenaturing environment for biomolecules and improves the stability of cells. Due to environmental concerns and toxicity issues related with common volatile organic solvents, ionic liquids (ILs), a new class of nonvolatile alternative solvents, are being currently investigated fo...

In this paper we show that information from citing papers can help perform extractive summarisation of medical publications, especially when the amount of text available for development is limited. We used the data of the TAC 2014 biomedical summarisation task. We report several methods to find the reference paper sentences that best match the citation text from the citing papers (“citances”). ...

We propose and develop a simple and efficient algorithm for generating extractive multi-document summaries and show that this algorithm exhibits stateof-the-art or near state-of-the-art performance on two Document Understanding Conference datasets and two Text Analysis Conference datasets. Our results show that algorithms using simple features and computationally efficient methods are competiti...