Impact of hexamine addition to a nitrite-based additive on fermentation quality, Clostridia andSaccharomyces cerevisiaein a white lupin-wheat silage
| Autor: | Walter König, Tero Tuomivirta, Hannu Fritze, Aila Vanhatalo, Seija Jaakkola, Kari Elo, Emilia König, Kirsten Weiss |
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| Rok vydání: | 2018 |
| Předmět: |
0303 health sciences
Nutrition and Dietetics 030309 nutrition & dietetics Formic acid Silage 04 agricultural and veterinary sciences 040401 food science Lactic acid Butyric acid 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology chemistry Nitrate Fermentation Food science Nitrite Sodium nitrite Agronomy and Crop Science Food Science Biotechnology |
| Zdroj: | Journal of the Science of Food and Agriculture. 99:1492-1500 |
| ISSN: | 0022-5142 |
| DOI: | 10.1002/jsfa.9322 |
| Popis: | Nitrite and hexamine are used as silage additives because of their adverse effects on Clostridia and Clostridia spores. The effect of sodium nitrite and sodium nitrite/hexamine mixtures on silage quality was investigated. A white lupin-wheat mixture was treated with sodium nitrite (NaHe0) (900 g t-1 forage), or mixtures of sodium nitrite (900 g t-1 ) and hexamine. The application rate of hexamine was 300 g t-1 (NaHe300) or 600 g t-1 (NaHe600). Additional treatments were the untreated control (Con), and formic acid (FA) applied at a rate of 4 L t-1 (1000 g kg-1 ).; Results: Additives improved silage quality noticeably only by reducing silage ammonia content compared with the control. The addition of hexamine to a sodium nitrite solution did not improve silage quality compared with the solution containing sodium nitrite alone. The increasing addition of hexamine resulted in linearly rising pH values (P < 0.001) and decreasing amounts of lactic acid (P < 0.01). Sodium nitrite based additives were more effective than formic acid in preventing butyric acid formation. Additives did not restrict the growth of Saccharomyces cerevisiae compared to the control.; Conclusion: The addition of hexamine did not improve silage quality compared with a solution of sodium nitrite. © 2018 Society of Chemical Industry.; © 2018 Society of Chemical Industry. |
| Databáze: | OpenAIRE |
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