Stability assessment of the feed additive "Galluasorb"

Mycotoxins (metabolites of toxigenic isolates of microscopic fungi) are ubiquitous in animal feed and food raw materials. To register feed additives, a specific package of documents is generated, which constitute a registration dossier, which includes an assessment of the results of toxicological studies and safety of use, as well as the preservation of the declared chemical-physical, microbiological and biological properties within certain limits during the established shelf life (i.e. stability study). The purpose of the research is to assess the stability of the complex feed additive "Galluasorb" based on the natural nanomaterial halloysite, glucans of plant origin, methionine, milk thistle meal. Testing of 3 batches of the feed additive "Galluasorb" for compliance with the requirements of technical specifications TU 10.91.10-008-00492374-2024 was carried out at the beginning of storage and after 3, 6, 9 and 12 months. The tests were carried out on samples of the feed additive packaged in kraft paper bags with a rectangular bottom with a volume of 1 dm3, which were stored in a dry room, excluding exposure to light, at a temperature of no more than +25 °C and a humidity of no more than 60%. During storage, the quality (appearance, mass fraction of moisture and ash) and safety (toxicity, content of pathogenic microorganisms and toxic elements) and authenticity indicators were assessed. As a result of the experiment, it was established that during 12 months of storage, Galluasorb complies with the requirements of technical conditions in terms of quality and safety indicators. When the storage conditions are observed, the stability of the declared quality indicators is preserved. An increase in the humidity of the adsorbent was recorded, not exceeding the established standard. Changes in the physicochemical properties were also not recorded when exposed to a temperature of 115 °C for 10 minutes.

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