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Alginate-based edible coating incorporating green tea extract for preserving postharvest quality and safety of white mushrooms (Agaricus bisporus)

2026-10-31Artigo de investigação Acesso aberto
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dc.contributor.authorAlves, Jade Morais
dc.contributor.authorSilva, Bruna Heloiza Gomes da
dc.contributor.authorMelo, Adma Nadja Ferreira de
dc.contributor.authorOliveira, Louise Iara Gomes de
dc.contributor.authorBatista, André Ulisses Dantas
dc.contributor.authorLima, Marcos dos Santos
dc.contributor.authorSilva, Ruthchelly Tavares da
dc.contributor.authorPintado, Maria Manuela
dc.contributor.authorMagnani, Marciane
dc.date.accessioned2026-07-30T15:46:48Z
dc.date.available2026-07-30T15:46:48Z
dc.date.issued2026-10-31
dc.description.abstractThis study aimed to evaluate the effects of a sodium alginate based edible coating incorporated with green tea extract (GTE) (Camellia sinensis) on the postharvest quality attributes and antimicrobial activity against Listeria monocytogenes in white mushrooms during refrigerated storage. The phenolic profile of GTE was characterized, and its minimum inhibitory concentration (MIC) against L. monocytogenes (1.6 mg/mL) was determined. Sodium alginate coatings, with (ALG-GTE) or without GTE (ALG) at MIC (1.6 mg/mL), were characterized (functional groups, solubility in water, moisture, thickness, water contact angle and color) for their chemical and physical properties. The effects of ALG-GTE coatings on quality parameters (firmness, weight loss, color, pH, sugars and organic acids), enzymatic activity [polyphenol oxidase (PPO), peroxidase (POD) and pectin methylesterase (PME)], antimicrobial activity against L. monocytogenes (5 log CFU/g), and surface characteristics (3D optical profilometry) were assessed in white mushrooms (Agaricus bisporus) during refrigerated storage (8 days, 4 ± 1 °C, 90–95% RH). The ALG-GTE coatings preserved sugar composition, particularly rhamnose, reduced organic acids accumulation and delayed weight and firmness loss, reduced color changes, and decreased PME activity in coated white mushrooms. L. monocytogenes counts decreased by 1.4 log CFU/g after 1 day, and no viable cells were detected after 2 days (< 1.5 log CFU/g) in ALG-GTE coated white mushrooms. In addition, ALG-GTE coated white mushrooms exhibited smoother surfaces than uncoated samples. These findings highlight the potential of ALG-GTE coatings as a sustainable alternative capable of improving the microbiological safety and delaying the postharvest changes in fresh mushrooms.eng
dc.identifier.doi10.1016/j.foodres.2026.120051
dc.identifier.eid105044847711
dc.identifier.otheracc76f7d-e53f-45f5-b5f5-4710a51d5e56
dc.identifier.urihttp://hdl.handle.net/10400.14/58955
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Ltd.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAntimicrobial activityeng
dc.subjectFresh mushroomseng
dc.subjectListeria monocytogeneseng
dc.subjectSustainable edible coatingeng
dc.titleAlginate-based edible coating incorporating green tea extract for preserving postharvest quality and safety of white mushrooms (Agaricus bisporus)
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.volume242
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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