Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(4), 9-14 | DOI: 10.11118/actaun200755040009

OBSAH ERGOSTEROLU U VYBRANÝCH DRUHŮ TRAV NA KONCI VEGETAČNÍHO OBDOBÍ

Vlastimil Dohnal1, Ilona Kaderová1, Alena Ježková1, Jiří Skládanka2
1 Ústav technologie potravin, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika
2 Ústav výživy zvířat a pícninářství, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika

V této práci byl sledován obsah ergosterolu ve vzorcích pícnin sklízených v období říjen-prosinec ve vztahu k jejich druhu a využití v létě. Z výsledků vyplývá, že největší obsah ergosterolu byl nalezen v prosincových vzorcích, a to sestupně v pořadí Dactylis glomerata, Arrhenatherum elatius a Festulolium. Festulolium mělo průkazně nejnižší (P

ergosterol, Festulolium, Dactylis glomerata, Arrhenatherum elatius, kapalinová chromatografie

Ergosterol content in selected grasses on the end of vegetation period

Ergosterol is a natural compound with steroidic structure produced mainly by fungi. Due to this, it is considered as a marker of fungal spoilage. In this work, the content of ergosterol was monitored in samples of three forage crops (Festuca arundinacea x Lolium multiflorum, Dactylis glomerata, Arrhenatherum elatius) during period October-December 2005 and different term of summer harvesting (June or July). There were adapted and applied liquid chromatographic method with fotometric detection in ultraviolet region for determination of this compound. It was found, that the content of ergosterol strongly increased in all december's samples with small variations between all three forage crops. Samples, where the summer harvest was performed in July had significantly lower content of ergosterol. Obtained results showed that level of monitored compounds was under limits in all samples.

Keywords: ergosterol, Festulolium, Dactylis glomerata, Arrhenatherum elatius, liquid chromatography
Grants and funding:

Práce vznikla s podporou grantu GAČR č. GP521/06/P253.

Received: February 20, 2007; Published: November 26, 2014  Show citation

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Dohnal, V., Kaderová, I., Ježková, A., & Skládanka, J. (2007). Ergosterol content in selected grasses on the end of vegetation period. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 55(4), 9-14. doi: 10.11118/actaun200755040009
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