About: Detection of olive oils authenticity by determination of their sterol content using LC/GC

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About: Detection of olive oils authenticity by determination of their sterol content using LC/GC Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The content of selected sterols as declared in the EU Commission Regulation was used to prove the authenticity of olive oils. A modified method using the preparative LC with silica gel packed column and gradient elution with three mixtures of hexane and diethyl ether was used to separate undesirable interfering compounds in the unsaponifiable fraction before the determination of sterols using GC. Model experiments based on the determination of D-7-stigmastenol and campesterol (addition of sunflower and soybean oils), or brassicasterol (addition of rapeseed oil) were used to verify that this method is capable of identifying adulteration of olive oils by additions of sunflower, soybean or rapeseed oils. An elevated content of these marker sterols, in comparison with their permitted contents, enables the identification of an addition of 5-10 % of the above oils to the olive oil. This method was also used to evaluate the authenticity of five samples of olive oils from the SIAL exhibition (Pte the authenti The content of selected sterols as declared in the EU Commission Regulation was used to prove the authenticity of olive oils. A modified method using the preparative LC with silica gel packed column and gradient elution with three mixtures of hexane and diethyl ether was used to separate undesirable interfering compounds in the unsaponifiable fraction before the determination of sterols using GC. Model experiments based on the determination of D-7-stigmastenol and campesterol (addition of sunflower and soybean oils), or brassicasterol (addition of rapeseed oil) were used to verify that this method is capable of identifying adulteration of olive oils by additions of sunflower, soybean or rapeseed oils. An elevated content of these marker sterols, in comparison with their permitted contents, enables the identification of an addition of 5-10 % of the above oils to the olive oil. This method was also used to evaluate the authenticity of five samples of olive oils from the SIAL exhibition (Pte the authenti (en)
Title	Detection of olive oils authenticity by determination of their sterol content using LC/GC Detection of olive oils authenticity by determination of their sterol content using LC/GC (en)
skos:prefLabel	Detection of olive oils authenticity by determination of their sterol content using LC/GC Detection of olive oils authenticity by determination of their sterol content using LC/GC (en)
skos:notation	RIV/00027022:_____/01:00000034!RIV/2002/MZE/M04002/N
http://linked.open.../vavai/riv/strany	97;103
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(EP7144)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Bohačenko, Ivan Kopicová, Zdenka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný ústav potravinářský Praha, v.v.i.
http://linked.open...dnocenehoVysledku	677317
http://linked.open...ai/riv/idVysledku	RIV/00027022:_____/01:00000034
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	olive oil, authenticity, adulteration, sterols, sunflower oil, soybean oil, rapeseed oil, liquid chromatography, gas chromatography, (en)
http://linked.open.../riv/klicoveSlovo	authenticity sterols gas chromatography liquid chromatography rapeseed oil soybean oil sunflower oil olive oil adulteration
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[7BE5B1F5D82B]
http://linked.open...i/riv/nazevZdroje	Czech J. Food Sci.
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Analytical methods for the detection of adulteration in the Food Quality Control System in Czech Republic and utilization of the GLC and HPLC in this problems
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	19
http://linked.open...iv/tvurceVysledku	Bohačenko, Ivan Kopicová, Zdena
issn	1211-1800
number of pages	7 (xsd:int)

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