J 2004

Liquid chromatographic-mass spectrometric determination of genistin and daidzin in soybean food samples after accelerated solvent extraction with modified content of extraction cell.

KLEJDUS, Bořivoj, Radka MIKELOVÁ, Vojtěch ADAM, Josef ZEHNÁLEK, Jan VACEK et. al.

Basic information

Original name

Liquid chromatographic-mass spectrometric determination of genistin and daidzin in soybean food samples after accelerated solvent extraction with modified content of extraction cell.

Name in Czech

HPLC/MS stanovení genistinu a daidzinu v potravinách na bázi sojových bobů

Name (in English)

Liquid chromatographic-mass spectrometric determination of genistin and daidzin in soybean food samples after accelerated solvent extraction with modified content of extraction cell.

Authors

KLEJDUS, Bořivoj (203 Czech Republic), Radka MIKELOVÁ (203 Czech Republic), Vojtěch ADAM (203 Czech Republic, guarantor), Josef ZEHNÁLEK (203 Czech Republic), Jan VACEK (203 Czech Republic), René KIZEK (203 Czech Republic) and Vlastimil KUBÁŇ (203 Czech Republic)

Edition

Analytica Chimica Acta, 2004, 0003-2670

Other information

Language

Czech

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.588

RIV identification code

RIV/00216224:14310/04:00011143

Organization unit

Faculty of Science

UT WoS

000222494200001

Keywords in English

accelerated solvent extraction; daidzin; foodstuffs; genistin; high-performance liquid chromatography; isoflavones; mass spectrometry; solvent extraction; Soxhlet extraction; soybean food; ultrasonic extraction; UV spectrophotometric detection
Změněno: 22/5/2009 21:59, prof. RNDr. Vojtěch Adam, Ph.D.

Abstract

V originále

A newly elaborated accelerated solvent extraction (ASE) procedure allowed more accurate (<2%) and precise (<5-8% rel.) HPLC/UV/MS determination of isoflavones in different kinds of food made from soybean (products of ecological agriculture), i.e. soy farina, soy meat granulate, soy meat laminae, soy meat bits, Protmix and EKO-B1. The on-column limits of detection (LOD) for daidzin/genistin were 1.2/1.6 fmol for the signal-to-noise ratio S/N = 3 and 1-3 fmol for daidzem, genistein, formononetin, biochanin A and ononin, respectively. Final concentrations of daidzin in soybean foods fluctuated between 30 and 60 mug/g of dry matter (DM). Significantly higher concentrations of genistin (between 60 and 130 mug/g DM) were found in the soybean foods.

In English

A newly elaborated accelerated solvent extraction (ASE) procedure allowed more accurate (<2%) and precise (<5-8% rel.) HPLC/UV/MS determination of isoflavones in different kinds of food made from soybean (products of ecological agriculture), i.e. soy farina, soy meat granulate, soy meat laminae, soy meat bits, Protmix and EKO-B1. The on-column limits of detection (LOD) for daidzin/genistin were 1.2/1.6 fmol for the signal-to-noise ratio S/N = 3 and 1-3 fmol for daidzem, genistein, formononetin, biochanin A and ononin, respectively. Final concentrations of daidzin in soybean foods fluctuated between 30 and 60 mug/g of dry matter (DM). Significantly higher concentrations of genistin (between 60 and 130 mug/g DM) were found in the soybean foods.

Links

MSM 432100001, plan (intention)
Name: Regulace biologických a technologických procesů pro konkurenceschopné zemědělství.