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Modeling and optimization of the E-beam treatment of chicken steaks and hamburgers, considering food safety, shelf-life, and sensory quality

Paper ID Volume ID Publish Year Pages File Format Full-Text
18829 43035 2015 12 PDF Available
Title
Modeling and optimization of the E-beam treatment of chicken steaks and hamburgers, considering food safety, shelf-life, and sensory quality
Abstract

•E-beam dose greatly affected safety and sensory attributes of two poultry products.•Proposed models described inactivation of Salmonellae and sensory changes by E-beam.•An optimization procedure was developed to identify the optimum radiation dose.•The optimum dose guaranteed the highest quality and safety of products.•The calculated value was larger for hamburgers (2.04 kGy) than for steaks (1.1 kGy).

The present work was carried out to model the effect of E-beam treatment on the safety, shelf-life and sensory attributes of two poultry products, steaks and hamburgers, and to optimize the radiation treatment. The inactivation of Salmonella spp. by means of different irradiation doses was modeled using a first order kinetics. The shelf-life was studied by periodically counting the bacterial number in samples. For the modeling of experimental data, only the exponential phase of growth was taken into account. The effect of the irradiation dose on the sensory attributes (appearance, odor and flavor) and instrumental color (L*, a* and b* parameters) was modeled using the Gompertz function and the Activation–Inactivation or linear models. The optimization of the irradiation dose was carried out by maximizing the sensory scores of samples and minimizing the instrumental color changes. The safety and the shelf-life of samples were ensured by introducing constraints into the optimization problem. In the case of hamburgers, the optimum calculated dose was 2.04 kGy, which guarantees the safety of the product and provides the best combination of sensory and instrumental attributes. As regards the steaks, the optimum assessed dose was 1.11 kGy, significantly lower than for hamburgers.

Keywords
Radiation; Salmonella; Appearance; Color; Objective function; Constraint
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Modeling and optimization of the E-beam treatment of chicken steaks and hamburgers, considering food safety, shelf-life, and sensory quality
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 96, October 2015, Pages 133–144
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us