ISSUE FOCUS FEED & ADDITIVE MAGAZINE April 2024 29 A critical factor in these solutions is the application method of treatment products. Contact point and distribution are very important to ensure sufficient dispersion through the raw materials or feed. Safety is always top priority so making sure that the organic acids are applied safely is one of the differentiating factors. When it comes to different flow rates of conveyors, varying mixers sizes or harbour treatment, Selko has a solution that is tailor-made to the situation. Dosing equipment is seen as a major part of the service offering and special care is taken to generate a needs-driven solution. MANAGEMENT Controlling microbial challenges in feed and feed ingredients requires a consistent approach and is most effective when incorporated in standard company protocols. Establishing hygiene management practices help stay on top of challenges that might arise. Measuring and analysing samples from CCP’s on a weekly basis is a good start. This will assist to act proactively and accurately. Taking bigger sample sizes can help to identify potential risks in a more effective way. Increasing sample sizes to 1.5 kilogram, which the lab can split into 6 x 25 grams samples, provides a more representative picture of the situation. Regular sampling and analysis help guide the most effective combination of preserving, or treating, ingredients against microorganisms. And effective application through safe and accurate dosing equipment, ensures the optimal mixing and dispersion of treatment products for maximum return on investment. IN CONCLUSION Microbial risks, particularly from moulds and gram-negative bacteria, like Salmonella, pose significant challenges in food processing, with raw materials and varying temperatures and moisture levels creating optimal environments for growth. Early detection through comprehensive sampling plans at critical control points is essential for implementing tailored solutions. These critical points include raw material intake pits and areas where temperature differentials create condensation, fostering microbial growth. Effective sampling using the correct methods, tools and equipment will assist in effective and accurate analysis. Addressing these challenges often involves applying specialty formulated blends of organic acids, such as Selko's Fylax and Fysal, tailored to specific microbial risks. Appropriate application methods and dosing equipment are crucial for ensuring the safe and effective dispersion of these products. Consistent control through holistic approaches, including management practices and regular measurement and analysis at critical control points, is vital for proactive mitigation. Selko focuses on a solution driven approach that will assist with a comprehensive sampling plan incorporating feed safety audit and analysing the samples for microbial risks. Secondly, choosing the correct product and application according to the type of microorganisms present and through tailor-made dosing equipment applying these products in the safest and most effective way. This process is always supported by knowledge transfer and assistance in the processes to ensure a proactive approach. Selko offers services such as a raw material analysis kit that helps identify CCP’s and taking representative samples to create a current microbial blueprint. About Pieter Steyn Pieter Steyn is Selko's commercial technical manager for the Raw Material Quality Programme. In his current position he provides technical and commercial support to internal teams, as well as customers around the globe. He has a passion for safe feed production, with a focus on feed ingredients and raw materials. Originally from South Africa, Steyn gained his experience through various sales- and technical positions within the agricultural industry in that region. For the past three years he's residing in the Netherlands and has in traveling around the world, shared and expanded his knowledge and experience in effective grain preservation.
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