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Comparação de técnicas de determinação de ésteres em cachaça
(Sociedade Brasileira de Química, 2009)
An analytical comparison of three different techniques for quantitative profile of esters in cachaça is reported. The Ministério da Agricultura Pecuária e Abastecimento (MAPA) recommends the use of GC/FID or volumetry. ...
Quantitative ester analysis in cachaca and distilled spirits by gas chromatography-mass spectrometry (GC-MS)
(AMER CHEMICAL SOC, 2008)
An analytical procedure for the separation and quantification of ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl lactate, ethyl octanoate, ethyl nonanoate, ethyl decanoate, isoamyl octanoate, and ethyl laurate in ...
A New Proposal Using a Turbine in the Reactor with a Cavitation System in the Biodiesel Synthesis
(2017-12-01)
The present research investigates the effect of a cavitation system with a turbine in comparison to the vigorous stirring on the process of biodiesel synthesis by the transesterification reaction using oil (triglycerides) ...
Mechanical Properties Evaluation of a Recycled Flax Fiber-reinforced Vinyl Ester
(Sage Publications Ltd, 2005-06-01)
The effect of recycled powder incorporation on the mechanical properties of the thermosetting matrix (vinylester) and thermoplastic matrix (polypropylene) was studied. In the case of thermosetting matrix, flexural and ...
Improved method for the determination of wax esters in vegetable oils
(Wiley VCH Verlag, 2012-11)
In this work a modified International Olive Council (IOC) method for wax determination involving a double-adsorbent layer of silica gel and silver nitrate-impregnated silica gel is presented (SN method). Column chromatography ...
Production of sucroesters using solvent-free reactive systems containing emulsifiers
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería, 2018-01-01)
The transesterification reaction of sucrose and fatty acid methyl esters to produce sucroesters was experimentally evaluated using commercial emulsifiers as compatibility agents. Reactions were carried out at temperatures ...