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Heating pre-treatment of copper ores and its effects on the bond work index
(MDPI, 2022)
Comminution is the stage with the largest energy consumption in the mining process. Therefore, several pre-treatments have been proposed to reduce the energy requirements of this stage. This work analyzed the effect of a ...
Use of ionic liquids in the pretreatment of forest and agricultural residues for the production of bioethanol
(2010)
Pretreatment of lignocellulosic materials is an important step to achieve higher amounts of simple sugars, mono- and disaccharides, for obtaining ethanol as a biofuel, via enzymatic hydrolysis. The study introduces a concept ...
The Effect of Ionic Liquid Pretreatment on the Bioconversion of Tomato Processing Waste to Fermentable Sugars and Biogas
(Humana Press Inc., 2016)
Tomato pomace is an abundant lignocellulosic waste stream from industrial tomato processing and therefore a potential feedstock for production of renewable biofuels. However, little research has been conducted to determine ...
Comparison of different types of pretreatment and enzymatic saccharification of Macrocystis pyrifera for the production of biofuel
(Elsevier, 2016)
In this work, the brown algae Macrocystis pyrifera were pretreated with dilute sulfuric acid, water and three different types of ionic liquids (ILs): 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]), 1,5-diazabicyclo[4.3.0] ...
Effects of chloroquine pretreatment on lethal dose of morphine and on morphine metabolism in rats
(1969)
The previous administration of chloroquine to normal rats resulted in a significant increase in the lethal dose of morphine and in a higher amount of conjugated morphine in the liver. No differences were found on normorphine ...
Effect of pretreatment with microwaves on mechanical extraction yield and quality of vegetable oil from Chilean hazelnuts (Gevuina avellana Mol)
(ELSEVIER SCI LTD, 2008-10)
The effect of microwave (MW) radiation on hazelnut seed (Gevuina avellana Mol) was studied as a substrate
pretreatment prior to oil extraction by pressing. Samples were MW-treated at a frequency of 2450 MHz using
a ...
Influence of osmotic pre-treatment on convective drying of yellow pitahaya
(Universidad Nacional de Colombia Sede Medellín, 2014-12-15)
Cylinders of pitahayas were osmotically dehydrated in sucrose 55 % (w/w) during 45 minutes as a pretreatment of convective drying. Hot air drying was performed at 50, 60 and 70ºC. Drying kinetics of osmodehydrated samples ...
Digestibility and availability of nutrients in bee pollen applying different pretreatments
(Universidad del ValleColombia, 2017-01-30)
(Eng) Bee pollen is characterized by its high nutritional value that could be used in human diet, specifically for its value in protein and antioxidant capacity. Different studies emphasize that pollen shows a restriction ...
Enzymatic hydrolysis of cassava stalk pretreated with the alkaline method
(Universidad Nacional de Colombia, 2015-05-01)
This study was developed with the aim of evaluating the pH, enzymatic complex load and temperature effects on the saccharification of pretreated cassava stalks (CS) using the response surface methodology (RSM). The factor ...
Lipid-Lowering pretreatment and outcome following intravenous thrombolysis for acute ischaemic stroke: A post hoc analysis of the enhanced control of hypertension and thrombolysis stroke study trial
(Karger, 2018)
Background: Debate exists as to whether statin pretreatment confers an increased risk of 90-day mortality and symptomatic intracranial haemorrhage (sICH) in acute ischaemic
stroke (AIS) patients treated with intravenous ...