There are various methods for the analysis of Potassium Sorbate and Sodium Benzoate in food products, but a rapid and reliable method for identification of these preservatives in Doogh (an Iranian traditional dairy drink) is a procedure, in which high performance liquid chromatography (HPLC) utilized and followed by UV diode array detection of the two preservatives. The aim of this case study w...

The Gladiolus is the largest genus in the family Iridaceae that contains many bulbous plants from southern Africa. Flower coloration varies from white, yellow, pink, red to purple. Some anthocyanins have been isolated as flower pigments, but other flavonoids are hardly reported. In this survey, the anthocyanins and other flavonoids of the bluish cultivar, G. x grandiflora ‘Ariake’ were isolated...

KOTAL F., RADOVÁ Z. (2002): A simple method for determination of deoxynivalenol in cereals and flours. Czech J. Food Sci., 20: 63–68. An effective and fast method for determination of deoxynivalenol (DON) in cereals and flours has been developed. The immunoaffinity column was used for the isolation of DON from wheat, corn, rice and flour extract. The determination was carried out by using the H...

BACKGROUND The isolation of highly pure copper-free methanobactin is a prerequisite for the investigation of the biogeochemical functions of this chalkophore molecule produced by methane oxidizing bacteria. Here, we report a purification method for methanobactin from Methylosinus trichosporium OB3b cultures based on reversed-phase HPLC fractionation used in combination with a previously reporte...

Background Non-enzymatic hydroxylation of aromatic compounds to the respective phenolic derivatives is a possible metabolic pathway of xenobiotics. The formed metabolites can undergo consecutive oxidative reactions with free radicals to form potential toxic molecules. Objective Development of HPLC methods to separate, identify and quantitate the main products formed from salicylic acid, 2,3-d...