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Research Continued from page 45 provide data regarding c. the benefits of using rendered products, including high-value specialty ingredients such as chicken meal, porcine blood meals (dried red blood cells), etc. d. document the safety of rendered products for animal feeds. 3. Database of accurate digestibility and nutritional values of various products to improve diet formulation. 4. Use of animal proteins to replace antibiotic growth promoters in livestock and/or to improve animal health. 5. Models for predicting digestibility of amino acids in each rendered animal protein meal. 6. Increased understanding of fatty acid nutrition and whether certain profiles optimize value in diets. 7. Improved shelf life. 8. Traceability and chain of custody tracking to protect raw materials from contamination. What are the most threatening feed safety challenges faced by your company? 1. Microbiological (Salmonella) prevention and control expectations by regulators and customers. a. Validating rendering temperatures to regulators, foreign governments, and customers. b. Use of indicator organisms to indicate control of pathogens. c. Log reduction targets for microbes. How much is acceptable and how high would require pretreating raw material? d. Controlling microbial contamination after the cooking process. e. Emerging diseases: validation that rendering conditions control the latest animal disease receiving media attention. f. Prevention, detection, and measurement of pesticide contamination and antibiotic residues. What are the most challenging rendering operations issues encountered by your company? 1. High costs (mainly energy) of processing; alternatives that are safe and preserve quality are needed. 2. Foreign material (i.e., gloves, metals, etc.) contamination from meat processors. 3. Controlling air emissions and odors. 4. Sanitation (dry clean only) in grinding and storage areas. 5. Effective employee training and availability of skilled labor. 6. Stabilizing finished products. 7. Quickly identifying and quantifying pesticide/chemical residues in raw materials and finished products. 8. Processing liquid materials. 9. Methods to control rendered product composition (i.e., levels of protein, fat, ash, phosphorus, calcium, free fatty acids, etc.) for more precise and specialized uses. 10. Wastewater volumes, treatment, filtering, and acceptable discharge levels. 11. Reducing or using waste heat generated in processing. In recent years, the rendering industry has decreased emphasis on alternative non-feed uses for rendered proteins. Do you think work in this area would benefit your company in the future? 1. Yes, non-feed market options for animal proteins could be important in the future. Some streams of raw material (such as animal mortalities) may be diverted away from feed by regulation or customer preferences. Examples include proteins used as polymer feedstocks; hydrogenated products substituted for paraffin in paraffin-coated paper; replacing non-renewable chemicals with rendered fats; sustainable substitutes for petroleum lubricants, coatings, etc.; organic fertilizers; and bio-energy. Top 10 Research Topics Among a long list of possible research topics, these 10 scored the highest. 1. Kill temperatures for pathogens in raw materials 2. Treatments to prevent growth of pathogens in rendered products 3. Antimicrobial and antioxidant properties of rendered products 4. How to clean up/disinfect a plant after a disease outbreak or positive sample 5. The distance pathogens can travel in a rendering plant from a point source such as raw material receiving 6. Prevention of odors in rendering operations 7. Increasing efficiency and effectiveness of wastewater treatment 8. The use of rendered products in aquaculture diets 9. Prevention of oxidation in rendered fats and proteins 10. Increasing shelf life of rendered products FPRF has made necessary adjustments in intent, direction, and management and significant progress has been made with research providing practical information to renderers. Without adequate investment, though, continued effective research may be compromised. Every renderer should consider adding strength to the effort by investing funds and being involved to keep FPRF strong and headed in the right direction to serve the industry. R For more information on the Fats and Proteins Research Foundation and the many benefits it provides the global rendering industry, visit their website at www.fprf.org. 46  April 2014  Render www.rendermagazine.com


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