Stability of pyrrolizidine alkaloids from Senecio vernalis in grass silage under different ensilage conditions

Autor: Karl Speer, Janine Winter, Robert Pieper, Stefan Ronczka, Fenja Klevenhusen
Rok vydání: 2019
Předmět:
Zdroj: Journal of the Science of Food and Agriculture. 99:6649-6654
ISSN: 1097-0010
0022-5142
DOI: 10.1002/jsfa.9963
Popis: BACKGROUND This study evaluated the degradation of pyrrolizidine alkaloids (PAs) from eastern groundsel (Senecio vernalis) in grass silage prepared with different inoculants. Silages were produced from ryegrass with 230 g kg-1 dry matter (DM) content and mixed with eastern groundsel (9:1; w/w fresh matter basis) containing 5.5 g kg-1 DM PA. Treatments were: CON (untreated control), LP (3.0 × 105 cfu g-1 Lactobacillus plantarum DSMZ 8862/8866) or LBLC (7.3 × 104 cfu g-1 Lactobacillus buchneri LN40177 / Lactobacillus casei LC32909), and each of the treatments in combination with 30 g kg-1 molasses. Silages were prepared in glass jars and opened after 3, 10, and 90 days. Fermentation characteristics were determined and the PAs analyzed. RESULTS Although the levels of fermentation acids differed between treatments, results indicated good quality of all silages during 90 days. Significant time (P
Databáze: OpenAIRE