About: Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods.

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Cholesterol concentrations in goats milk, goats milk cheeses, ewes milk, ewes milk cheeses, dairy bio-products, and concentrations of cholesterol, stigmasterol and sitosterol in butter, butter with added vegetable fats and margarines were evaluated by RP HPLC method. Parallel analyses by capillary GC were performed. Prior to the final chromatographic analyses the saponification step with methanolic potassium hydroxide solution was used, followed by the extraction of the unsaponificable residue into n-hexane. Parameters of RP HPLC method were compared with parameters of GC determination The detection limits (LOD) determinated on the bases of blank samples analysis were 5.2 mg.kg-1 for cholesterol, 4.8 mg.kg-1 for stigmasterol and 14.7 mg.kg-1 for sitosterol. Recovery ranged between 80 - 92%, repeatibility expressed as RSD of 12 paralel samples measurements was 4.2 - 6.8%. Accuracy tested on the SRM 1845 Whole Egg Powder (NIST) was 95.7 % Cholesterol concentrations in goats milk, goats milk cheeses, ewes milk, ewes milk cheeses, dairy bio-products, and concentrations of cholesterol, stigmasterol and sitosterol in butter, butter with added vegetable fats and margarines were evaluated by RP HPLC method. Parallel analyses by capillary GC were performed. Prior to the final chromatographic analyses the saponification step with methanolic potassium hydroxide solution was used, followed by the extraction of the unsaponificable residue into n-hexane. Parameters of RP HPLC method were compared with parameters of GC determination The detection limits (LOD) determinated on the bases of blank samples analysis were 5.2 mg.kg-1 for cholesterol, 4.8 mg.kg-1 for stigmasterol and 14.7 mg.kg-1 for sitosterol. Recovery ranged between 80 - 92%, repeatibility expressed as RSD of 12 paralel samples measurements was 4.2 - 6.8%. Accuracy tested on the SRM 1845 Whole Egg Powder (NIST) was 95.7 % (en)
Title	Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. (en)
skos:prefLabel	Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. (en)
skos:notation	RIV/62157124:16270/09:00002377!RIV10-MSM-16270___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6215712402)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Janštová, Bohumíra Borkovcová, Ivana Vorlová, Lenka Dračková, Michaela
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	Veterinární a farmaceutická univerzita Brno / Fakulta veterinární hygieny a ekologie
http://linked.open...dnocenehoVysledku	309941
http://linked.open...ai/riv/idVysledku	RIV/62157124:16270/09:00002377
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cholesterol; sterols; milk; dairy products; RP HPLC; GC (en)
http://linked.open.../riv/klicoveSlovo	sterols GC cholesterol milk RP HPLC dairy products
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[9886FEBA27D1]
http://linked.open...i/riv/nazevZdroje	Czech Journal of Food Science
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	27
http://linked.open...iv/tvurceVysledku	Borkovcová, Ivana Dračková, Michaela Janštová, Bohumíra Vorlová, Lenka Janoušková, Eva
http://linked.open...ain/vavai/riv/wos	000269005600068
http://linked.open...n/vavai/riv/zamer	Veterinary aspects of food safety and quality
issn	1212-1800
number of pages	3 (xsd:int)
http://localhost/t...ganizacniJednotka	16270
is http://linked.open...avai/riv/vysledek of	Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods. Determination of Sterols in Dairy Products and Vegetable Fats by HPLC and GC Methods.

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