S-YESMD for the detection of estrogenic effects

The biological test system S-YESMD (Saccharomyces-Yeast Estrogen Screen or Speed-Yeast Estrogen Screen) is a biological measurement system for the detection of the estrogenic activity in aqueous samples. The modified test is based on the conventional method YES (McDonnell et al. 1991)1 and is capable in particular for screening purposes of surface water and extracts with organic solvent content up to 20 %2.

The ready-to-use yeast Saccharomyces cerevisiae offers the benefit of significantly reduced workload and workflow. You can obtain reliable results depending on the chosen test protocol within seven hours (Speed-YESMD). The whole test can be performed under non-sterile conditions. By using standardized production conditions, we ensure the consistent quality of the test organism.

1 McDonnell et. al, 1991. High level expression of biologically active estrogen receptor in Saccharomyces cerevisiae.

2 dependent on the used organic solvent.

The S-YESMD test is suitable for the analysis of:

  • Aqueous extracts
  • Ultrapure, drinking and mineral water

  • Surface water

  • Ground water and well water

  • Waste water

The S-YESMD test kit is ready-to-use with a low detection limit, making it ideal for quality control in environmental and food analysis and for various fields of application in biotechnology. Every kit comes with our software BioVAL® – the software tool for evaluation of your measurement data.

Click here for more information on estrogens and estrogenic substances.

Duration of assayca. 7-20 h
Number of Samples(EEQ)max. 40
Validationinterlaboratory test
Calibration range*0 – 80

* ng/L  17β-Estradiol (E2)

Der Nachweis erfolgt photometrisch nach enzymatischer Reaktion mit einem chromogenen Substrat (Chlorphenolrot).
Als Referenzstandard für die Kalibrierung und Quantifizierung wird 17β-Estradiol verwendet.

Farbgebende Reaktion katalysiert durch das Enzym ß-Galactosidase:

Request a S-YES_MD offer

Every kit comes complete with BioVAL®

Get statistical analysis of your data in the form of a “Certificate of Analysis” with BioVAL®. All the important parameters from LOD to LOQ are conveniently summarized in a graph. QuoData software is not only reliable but also certified. Learn more here!

Contact us

for further information