Results 151 to 160 of about 2,810 (190)
Some of the next articles are maybe not open access.
Subcritical water extraction of organic acids from chicken manure
Journal of the Science of Food and Agriculture, 2020AbstractBACKGROUNDChicken manure waste has a wide range of organic substances and mineral elements. This enriched source has stimulated great scientific interest in finding cleaner and more environmentally benign nutrient recovery options. This study aimed to determine an effective and eco‐friendly method (i.e.
Svetlana Sushkova +9 more
openaire +2 more sources
Subcritical Water Extraction of Biological Materials
Separation & Purification Reviews, 2016Extraction is a vital prerequisite in most scientific studies involving the isolation and analysis of compounds from biological/environmental systems. The use of large quantities of organic solvents in performing both conventional and modern methods of extraction of these substances stirs issues of safety, environmental concern and cost-effectiveness ...
Sefater Gbashi +4 more
openaire +1 more source
Characterization of the subcritical water extraction of Fluoxetine-Hydrochloride
Journal of Chromatography A, 2012The characteristics of using Subcritical Water Extraction (SWE) to recover Fluoxetine-Hydrochloride from both standard solutions and the contents of commercial capsule formulations were investigated. Analysis of solutions and extracts was done by HPLC with UV detection at 254 nm.
Jillian N, Murakami +3 more
openaire +2 more sources
Subcritical Water Extraction of Antioxidant Compounds from Rosemary Plants
Journal of Agricultural and Food Chemistry, 2002Subcritical water extraction at several temperatures ranging from 25 to 200 degrees C has been studied to selectively extract antioxidant compounds from rosemary leaves. An exhaustive characterization of the fractions obtained using subcritical water at different temperatures has been carried out by LC-MS, and the antioxidant activities of the extracts
Elena, Ibañez +5 more
openaire +2 more sources
Demetalisation of soils by continuous acidified subcritical water extraction
Talanta, 2002Acidified subcritical water is proposed for the continuous extraction of metals (namely, lead, copper, cadmium, arsenic, selenium and mercury) from soils prior to: (a) continuous derivatisation (by hydride formation for As and Se, and cold vapour formation for Hg) and determination by atomic fluorescence; and (b) determination by Graphite Furnace ...
E, Priego-López, M D, Luque de Castro
openaire +2 more sources
Chapter 18 Hot (subcritical) water extraction
2002Publisher Summary This chapter discusses the use of water as an extraction fluid, where the water is heated anywhere up to its critical temperature, and where enough pressure is applied that the water remains liquid rather than turning to steam.
Steven B. Hawthorne, Alexna Kubátová
openaire +1 more source
Properties of Rice Straw Extract after Subcritical Water Treatment
Bioscience, Biotechnology, and Biochemistry, 2012Rice straw was separated into four parts: the upper, middle, and lower parts of the stem, and the leaf. They were treated with subcritical water at 140 to 260 °C. The yield, carbohydrate, protein, and phenolic contents were obtained as well as the UV-Vis absorption spectra and the radical scavenging activity of the extracts.
Boonnakhom, Tangkhavanich +2 more
openaire +2 more sources
Sequential extraction of polycyclic aromatic hydrocarbons using subcritical water
Chemosphere, 2010A rapid sequential subcritical (superheated) water extraction method for polycyclic aromatic hydrocarbons (PAHs) in contaminated soil and sediment is presented. Decreasing the polarity of water by successive increase of the extraction temperature from 50 degrees C to 200 degrees C at the moderate pressure (10.3MPa) enabled selective, non-exhaustive ...
Latawiec, Agnieszka E., Reid, Brian J.
openaire +3 more sources
Characterisation of ginger extracts obtained by subcritical water
The Journal of Supercritical Fluids, 2017Abstract Subcritical water extraction is gaining increased popularity in the production of natural extracts. Higher yields of target compounds, broader range of extracted compounds, its green character and safety make this extraction technique convenient for food, pharmaceutical and cosmetic industry.
Jaroslava Švarc-Gajić +4 more
openaire +1 more source
Extraction of cottonseed oil using subcritical water technology
AIChE Journal, 2010AbstractThis work represents the extraction of cottonseed oil using subcritical water. The extraction efficiencies of different range temperatures (180–280°C), having mean particle size range from 3 mm to less than 0.5 mm, water:seed ratios of 0.5:1, 1:1, and 2:1, and extraction times in the range of 5–60 min were all investigated.
Wael Abdelmoez +3 more
openaire +1 more source