How would you test the effectiveness of a preservative added to animal feed? I've had a look at the preservative efficacy test used for pharmaceutical products: where the preservative is added to the product and a known dosage of microbes are inoculated into the product and the product is then tested after a certain number of days. Would it work in a similar manner for animal feed where higher numbers of microbes are allowed? The preservative I am using is against yeast and mould
No - the pharma method (USP ) is entirely inappropriate for your application. Can't provide a method for your appl. - you objective is general growth and spoilage/toxin production from resident fungi. Is this in a packaged product or bulk? Also see: https://www.foodsafetymagazine.com/magazine-archive1/aprilmay-2001/do-you-need-microbial-challenge-testing/
Preservative can keep food fresher for longer period of time, extending its self life...Preservative in foods are subject to ongoing review by FDA as scientific understanding and methods of testing continues. For more details consult www.fao.org You can also check : Assessing quality and safety of animal feeds - Food and Agricultural Organization of the United Nation www.fao.org. This publication provides the most recent information on the impact of animal feeds on food quality, food safety etc
You can simply assay for increase in spoilage microbial load, depletion of vital elemental composition via microbial degradations and biiaccumulation, sensory evaluation without taste option...
You can assay for feed from different manufacturers using different preservatives.
A good preservative should maintain feed composition throughout the self life
You can simply assay for increase in spoilage microbial load, depletion of vital elemental composition via microbial degradations and biiaccumulation, sensory evaluation without taste option...
You can assay for feed from different manufacturers using different preservatives.
A good preservative should maintain feed composition and appearance throughout the self life
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