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EXTRACTION WITH SPME AND SYNTHESIS OF 2-METHYL-6- VINYLPYRAZINE BY A ‘ONE POT’ REACTION USING MICROWAVES.
(2013-03-05)
A synthesis of 2-methyl-6-vinylpyrazine was carried out by way of a ‘one pot’ reaction. In order to establish the efficiency of this synthesis the extraction of the volatiles released by male papaya fruit flies was performed ...
Canola oil with high antioxidant content obtained by combining emerging technologies: microwave, ultrasound, and a green solvent
(Wiley VCH Verlag, 2019-09-09)
In this work, the ultrasound‐assisted extraction (UAE) of canola oil from canola seeds pretreated with microwaves using ethanol 99% as solvent is studied. Different process parameters are evaluated, such as extraction time, ...
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 ...
Suitability of microwave-assisted extraction coupled with solid-phase extraction for organophosphorus pesticide determination in olive oil
(ELSEVIER SCIENCE BV, 2008-10-17)
A systematic study of the microwave-assisted extraction coupled to solid-phase extraction of nine organophosphorus pesticides (dimethoate, diazinon, pirimiphos methyl, parathion methyl, malathion, fenthion, chlorpyriphos, ...
Hexane-Free Green Solvent Extraction of Canola Oil From Microwave-Pretreated Seeds and of Antioxidant-Rich Byproducts
(Wiley VCH Verlag, 2018-09)
The ethanol extraction from microwave-pretreated and untreated canola seeds is studied. Two process are used to obtain the oil: in a control process (P1), the solvent-free total extract (E) is washed with hexane, obtaining ...
Processos verdes de extração de produtos naturais de materiais vegetais com ultrassom e micro-ondas
(Universidade Federal de Santa MariaBrasilCiência e Tecnologia dos AlimentosUFSMPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosCentro de Ciências Rurais, 2020-07-27)
The market of natural ingredients has been increasing worldwide in the last years, and, as a
consequent the development of efficient extraction methods can be a current challenge for food,
chemicals and pharmaceutical ...
Microwave backscattering from surf zone waves
(2014)
The microwave backscatter properties of surf zone waves are analyzed using field observations. By utilizing a preexisting, independent, water surface discrimination technique, the microwave returns were extracted along ...