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This work was funded by the Spanish Ministry of Science and Innovation, project number RTI2018-096993-B-I00, by the Consolidated Research Group (2021 SGR 00461 and SGR 00468) from Generalitat de Catalunya and by CERCA Programme. Michela Albano received funding from the Spanish National Institute of Agricultural Research (INIA) (PRE2019-089669) .

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Tailor-made packaging strategies of fresh pork belly with different fat content: Enhancing shelf life while minimizing environmental impact

Publicat a:Meat Science. 217 109627- - 2024-11-01 217(), DOI: 10.1016/j.meatsci.2024.109627

Autors: Marcos, Begonya; Quinteiro, Paula; Albano-Gaglio, Michela; Munoz, Israel; Claret, Anna; Guerrero, Luis; Lloret, Elsa; Tejeda, Juan Florencio; Font-i-Furnols, Maria

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Pork belly is a meat cut valued for its rich flavour and texture, attributed to its high fat content, which also makes it susceptible to oxidation. Therefore, meat producers and processors must carefully select packaging options to maximise shelf life while meeting consumer preferences. This study aimed to develop customised packaging strategies for sliced pork belly with varying fat content to extend shelf life while minimizing environmental impact. The research compared three packaging solutions: modified atmosphere packaging (MAP1: 70:30% O2: CO2, MAP2: 30:40:30% O2:CO2:N2) and vacuum skin packaging (VSP) for pork bellies with low (LF: 16.07 f 1.87%), medium (MF: 37.39 f 4.41%), and high fat content (HF: 57.57 f 2.36%). Samples packaged in VSP exhibited the longest shelf life (13-14 days) with lower purge and reduced fat and colour oxidation compared to MAP-packaged samples for all studied belly types. Nonetheless, the impact of MAP on shelf life depended on the belly type. HF bellies, with lower proportions of unsaturated fatty acids, showed less purge, and greater colour and fat stability, resulting in a longer shelf life compared to LF and MF bellies. LF and MF bellies in MAP2 showed the shortest shelf life (around 6 days), followed by LF and MF in MAP1 (around 7-8 days). Life Cycle Assessment indicated VSP generally as the most environmentally favourable option for LF and MF bellies, whereas for HF bellies, the choice among the three packaging solutions depended on the specific impact category under consideration.

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