Slide 1: Raw meat-based diets are upon us: How do we ensure their safety?
6/20/23 Raw meat-based diets are upon us: How do we ensure their safety? By Samuel Kiprotich, Greg Aldrich, Ph.D. Kansas State University 1 2 1
Slide 2: What are Raw Meat-Based Diets (RMBDs)
6/20/23 3 What are Raw Meat-Based Diets (RMBDs) § RMBDs are a segment of minimally processed pet food different from conventional diets (Kiprotich & Aldrich, 2022). § Minimally processed pet foods can be classified as “Minimally Processed Commercial Diets” (MPCD) or “Minimally Processed Home Diets”
Slide 3: What makes raw diets unique? Contamination and recall of Raw Diets
6/20/23 What makes raw diets unique? • Raw diets are defined by AAFCO as; “feed or feed ingredient derived solely from plant, animal or mined sources, in its unprocessed state.” • Therefore, raw diets cannot be; – Frozen, cooked, rendered, fermented, hydrolyzed or purified. • Raw diets have water ac
Slide 4: Why should we care about RMBDs? Prevalence of contamination in RMBDs
6/20/23 Why should we care about RMBDs? Lambertini et al., (2015) 7 Prevalence of contamination in RMBDs Types of pet food samples that tested positive for Salmonella and Listeria monocytogenes (Years 2010-2012) in an FDA study Type of Dog Food No. of Samples tested Salmonella positive samples Liste
Slide 5: FDA Recalls of RMBDs; The Nature of the Challenge
6/20/23 FDA Recalls of RMBDs Percentage of pet food recalls associated with Listeria spp. and Salmonella spp From February, 2020- March 2022. Semi-moist treats Dry cat food 3% 8% Dry dog food 11% Treats 11% Raw Diets 67% Raw Di ets Trea ts Dry d og fo od Dry cat food Semi -mois t t reats https://www
Slide 6: Pasteurization of RMBDs using organic acids
6/20/23 Pasteurization of RMBDs using organic acids § Organic acidulants like GDL, citric and lactic have antimicrobial properties (Mani- López et al., 2012) and have been challenged against numerous pathogens in meat and poultry products. § However, direct acid application results into undesirable
Slide 7: Encapsulated VS Dry-plated acidulants on color of RMBD
6/20/23 Total log reduction of Salmonella survivors inoculated in raw meat-based pet treated with organic acidulants after 22 days 3.0% CA ENC FG 3.0% CA RW H 3.0% LA ENC G 3.0% LA R W H 3.0% GDL ENC CD 3.0% GDL RW B 2.0% CA ENC D 2.0% CA RW E 2.0% LA ENC D 2.0% LA R W E 2.0% GDL ENC BC 2.0% GDL RW
Slide 8: Interesting findings in our study
6/20/23 Interesting findings in our study Raw Diets after treatment with dry-plated Lactic acid after 13 days. Dry-plated citric and lactic acids had 0 counts of Salmonella On day 13 but had evidence of visible mold growth 15 Multiple Hurdle theory for microbial inactivation 16 8
Slide 9: On-going and Future Research
6/20/23 On-going and Future Research 1. Evaluation of synergies from combinations of food acidulants. 2. Predictive modelling for the survival of pathogens in RMBDs treated with food acidulants. 3. Microbial Shelf-life and product quality studies 4. Palatability studies of RMBDs treated with food ac