Upload
giulio
View
40
Download
0
Tags:
Embed Size (px)
DESCRIPTION
NRTE Processing Interventions What is been evaluated… What is being done… What is next…. Food Processing Supplier Association 2011 Exp0 Symposium November 1, 2011. Evaluating Various Technologies. High Pressure Pasteurization (HPP) Irradiation Ultraviolet Radiation (UV) Chemical. - PowerPoint PPT Presentation
Citation preview
FOOD PROCESSING SUPPLIER ASSOCIATION 2011 EXP0 SYMPOSIUM
NOVEMBER 1, 2011
NRTE Processing Interventions
What is been evaluated…
What is being done…What is next…
Evaluating Various Technologies
•High Pressure Pasteurization (HPP)•Irradiation •Ultraviolet Radiation (UV)•Chemical
Have found nothing that is 100% effective without destroying functionality and / or organoleptic properties.But… have implemented an In-process Chemical Intervention that has demonstrated modest load reduction.
High Pressure Pasteurization (hpp) •Denatured proteins in raw material… negative impact on functionality •Finished product visibly inferior, dry, and unpalatable
Irradiation Not approved for multi-ingredient products Labeling / Market acceptance concerns
Treatment (1.5 and 3.0 kgy)left material with distinct, noticeable odors when cooked
Significant flavor differences compared to control material. Product had a rancid taste.
UV TREATMENT
•Tested product efficacy at 30 second and 60 second exposure•Difficult to incorporate into all processes•Found little to no reduction in APC
GRAS Chemicals Halogens (hypochlorite) difficult to maintain
titration with unpredictable results Acidifiers (buffered acids) demonstrated better
stability under organic load and showed modest load reduction in early testing
Developed and implemented spray application of Aftec as a processing aid (Buffered Sodium Bisulfate by Solutions Bioscience)
Efficacy Study and Validation •UW performed efficacy study on Aftec (Buffered Sodium Bisulfate) solution against both APC and Salmonella •Plant scale up validation done on APC reduction
UW Efficacy Study•Three strains of acid adapted Salmonella used in study•Spray applied to mimic production process•Reduced APC load by 69% and Salmonella by 78% •When APC is reduced… reasonable to assume that Salmonella, if present, could also be reduced
Initial Plant Validation•As is often the case… actual scaled up results differ from lab•120 individual tests•21% APC load reduction
Ongoing verification for APC Reduction
Nominal improvement from initial validation
30% reduction in APC Load Test to test variation observed
Reduction: 30.4%Tests YTD: 271 p-value*: 0.0082
2010 Acidification Intervention in Treating Raw Chicken Trim
Ongoing verification for APC Reduction
2011 Additional Acidification Intervention in Treating Raw Chicken
Number of Tests 50Average % Reduction 33%
Mann-Whitney P-Value Result 0.0001
• Different acidifiers work better with different food matrices
• Continue to challenge current system
• Challenge study still needs to be conducted
Multiple hurdle Approach Reducing Salmonella To Extent Possible Through
Viable Technology
Industry Outreach
Labeling Processing Intervention
Incoming Load
Process Control
-Vendor relationship-Standard requirements / growth supportive- Verification / control
-Environmental testing / control-Cross -contamination / Control
of Microbial Growth-Maintain cold chain
-Communicate raw state of product and how it should be cooked
-Council / Industry driven-Continue sharing programs and advances in reduction strategies
Thank You!
MAKING THE CATEGORY SAFER•Reducing Likelihood of Salmonella•Improving Labeling Comprehension•Continuing to Test and Validate New Innovations and Processing Aids•Promoting Public Awareness of Food Safety and Handling Practices•Continuing to support Industry Best Practices