Packaging for foods treated by ionizing radiation

Komolprasert, V.; Bailey, A. B.

doi:10.1002/9781119126881.ch8

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…13 The type and quantities of radiolysis products formed are considered equivalent for the different radiation types for the same material irradiated at comparable doses. 14 …”

Section: Introductionmentioning

confidence: 99%

X‐ray sterilization of biopharmaceutical manufacturing equipment—Extractables profile of a film material and copolyester Tritan™ compared to gamma irradiation

Menzel

Dorey²,

Maier

et al. 2021

Biotechnology Progress

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The biopharmaceutical industry gains enormous flexibility in production processes by using sterilized preassembled single-use devices. Gamma irradiation is an established sterilization technology that may be restricted in the future by the availability of 60 Co as irradiation source and irradiation capacities. X-ray technology is considered an alternative type of radiation for sterilizing SU equipment. In the context of extractables and leachables-one concern connected with the use of single-use process equipment-the effect of X-ray irradiation on the extractables profile of the materials needs to be compared to established gamma irradiation to qualify this alternative technology. An approach is presented to obtain robust and comprehensive extractables data for materials used in SU devices after sterilization either using X-ray or gamma irradiation. A careful selection of the test items and the test design allows a one-to-one comparison of data obtained from a combination of orthogonal analytical techniques. The extractables of a modern SU film material and the copolyester Tri-tan™ are evaluated. The data presented allow a risk evaluation on the safety of this new sterilization modality for biopharmaceutical applications. It is demonstrated that the extractables profile of a polymer is not affected by the type of irradiation used for sterilization.

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“…13 The type and quantities of radiolysis products formed are considered equivalent for the different radiation types for the same material irradiated at comparable doses. 14 …”

Section: Introductionmentioning

confidence: 99%

X‐ray sterilization of biopharmaceutical manufacturing equipment—Extractables profile of a film material and copolyester Tritan™ compared to gamma irradiation

Menzel

Dorey²,

Maier

et al. 2021

Biotechnology Progress

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“…Irradiation as a nonthermal process is utilized to achieve the preservation of food. Irradiation (even for pasteurization in 10 kGy and sterilization in 45 kGy) induces no heating to the food and the nutritional quality of the food is generally unaffected (Komolprasert & Bailey, 2007). Previous studies have demonstrated the potential of γ-irradiation to eliminate foodborne pathogens in mango juice, carrot juice, and kale juice without jeopardizing the amino acids content, titratable acidity, pH, total soluble solids, sugars, and organic acid contents.…”

Section: Introductionmentioning

confidence: 99%

Microemulsion‐based biopreservatives and γ‐irradiation as combined treatments to provide healthy and safe orange juice

Maherani

Khlifi

Salmieri

et al. 2019

J Food Process Preserv

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Radiosensitization of Aspergillus niger, Penicillium chrysogenum, and Saccharomyces cerevisiae was investigated in orange juice containing plant oil (lemongrass and oregano)/citrus extracts‐loaded microemulsion or coarse emulsion treated with different doses of γ‐irradiation. D10 value (kGy) (γ‐irradiation dose required to eliminate 90% of fungal population) of targeted fungi in presence of microemulsion in compared to control and coarse emulsion was evaluated in orange juice as food model. Microemulsion resulted in 1.55, 2.33 and 2.10 times increment in relative fungal radio‐sensitivity (RS) for A. niger, P. chrysogenum and S. cerevisiae, respectively, in compared to control sample without antifungal formulation. Furthermore, in situ challenge tests against pathogenic fungi were performed during 35 days of storage at 4°C. Results demonstrated synergistic antifungal activity between the plant oil/citrus extracts‐loaded microemulsion and γ‐irradiation (1 kGy) by enhancing the RS of fungi and completely eradicating the molds growth and yeasts in orange juice. Practical applications This study strongly evidenced that combined treatment of γ‐irradiation with natural plant extracts‐loaded microemulsion can be a remarkable alternative to synthetic preservatives while providing healthy, safe, and tasty foods with high added‐values and consumer acceptability.

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“…Because of its penetrating properties, γ-rays directly affect DNA resulting in cells' death, but can also produce oxidation of unsaturated lipids and lead to off-flavors. The maximum dose that can be applied on meat should not exceed 3 kGy [21]. However, low γ-radiation doses may not be fully efficient to eliminate pathogenic bacteria such as Listeria monocytogenes, Escherichia coli or Salmonella typhimurium, which are frequent sources of food contaminations.…”

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confidence: 99%

Effect of PLA/ZnO Packaging and Gamma Radiation on the Content of Listeria innocua, Escherichia coli and Salmonella enterica on Ham during Storage at 4 °C

Marra¹,

Boumail²,

Cimmino³

et al. 2016

JFSE

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Abstract:The effect of ZnO and low γ-radiation on PLA based-films was investigated to be used for food packaging application. Ham slices were inoculated with E. coli, L. innocua and S. enterica and then covered with PLA and PLA/5% ZnO films. The samples were irradiated with a γ-radiation dose of 0.3 kGy at dose rate of 13.5 kGy/h. Microbiological analysis was performed at 0, 1 and 5 days on samples stored at 4 °C. Results showed that no consistent reduction of bacteria was obtained, even at the fifth day of storage, when the ham was covered with PLA/5% ZnO film and no γ-radiation was performed. The use of γ-radiation results necessary to reduce the bacteria growth. In fact E. coli and S. enterica were not detected after 5 days of storage; whereas in the case of test with L. innocua a reduction of 1.3 log CFU/g was observed after 5 days of storage. The antibacterial results indicate that the presence of ZnO in PLA film is effective only for E. coli. The differences of the results obtained here with those reported in literature (where ZnO particles are reported to be very effective as antimicrobial material) are accounted for the different methodologies used. In conclusion considering the positive results, even if small, obtained here at least only for the E. Coli and considering that PLA/5% ZnO film shows, compared to plain PLA film, good tensile properties (especially Young's modulus and stress at yielding) and good permeability (to O 2 and CO 2 ) induce to consider the PLA/5% ZnO composite film usable for food packaging when long shelf life and food safety are required, considering also that it is biodegradable and compostable.

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Packaging for foods treated by ionizing radiation

Cited by 3 publications

References 39 publications

X‐ray sterilization of biopharmaceutical manufacturing equipment—Extractables profile of a film material and copolyester Tritan™ compared to gamma irradiation

X‐ray sterilization of biopharmaceutical manufacturing equipment—Extractables profile of a film material and copolyester Tritan™ compared to gamma irradiation

Microemulsion‐based biopreservatives and γ‐irradiation as combined treatments to provide healthy and safe orange juice

Effect of PLA/ZnO Packaging and Gamma Radiation on the Content of Listeria innocua, Escherichia coli and Salmonella enterica on Ham during Storage at 4 °C

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