Journal
FOOD CHEMISTRY
Volume 395, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.133560
Keywords
Equilibrium modified atmosphere; Gas conductor; Gas barrier; Pepper
Funding
- National Natural Science Foundation of China [31901750]
- National Key Research and Development Program of China [2018YFC1602206]
- Guangdong Key RD Program [2019B020210002]
- Guangdong Medical Science and Technology Research Fund [B2020200]
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Gas permeability was adjusted using a GB-GC blending material to design an EMAP in this study. The introduction of SPEEK enhanced the gas permeability and modified the properties of the blending material. When used to package preserved peppers, the blending material exhibited significant effects on inhibiting variations in sensory, color, texture, and chemical properties.
In this work, the design of equilibrium modified atmosphere packaging (EMAP) was achieved by adjusting gas permeability using gas barrier (GB) - gas conductor (GC) blending material. Sulfonated poly ether ether ketone (SPEEK) was used as promoter for gas permeation, i.e. GC, and introduced into poly ether sulfone (PES) as GB. As the results, the introduction of SPEEK cannot only enhance the gas permeability of the blending material, but also modify the physic and chemical properties. When the blending material used as EMAP for peppers, significant effects were exhibited on inhibiting the variations in sensory, color, texture, and chemical properties of the preserved peppers, especially when the samples preserved in packaging consisted of 60 % SPEEK and 40 % PES, in which suitable atmosphere with 5.18 % v/v CO2 and 3.16 % v/v O-2 was maintained. The overall findings revealed the feasibility of GB - GC theory for EMAP design.
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