Shelf Life Assessment of Fresh Poultry Meat Packaged in Novel Bionanocomposite of Chitosan/Montmorillonite Incorporated with Ginger Essential Oil

Active packaging incorporated with natural extracts is a promising technology to extend shelf life of perishable food. Therefore, this study aimed to produce a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporated with ginger essential oil (GEO). In vitro a...

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Bibliographic Details
Published inCoatings (Basel) Vol. 8; no. 5; p. 177
Main Authors Souza, Victor, Pires, João, Vieira, Érica, Coelhoso, Isabel, Duarte, Maria, Fernando, Ana
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2018
Subjects
Antiinfectives and antibacterials
Antimicrobial agents
Antioxidants
Bacteria
Biopolymers
Chitosan
Ginger
Life assessment
Meat
Microorganisms
Montmorillonite
Oils & fats
Oxidation
Pathogens
Phenols
Poultry
Refrigeration
Shelf life
Thiobarbituric acid
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Summary:Active packaging incorporated with natural extracts is a promising technology to extend shelf life of perishable food. Therefore, this study aimed to produce a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporated with ginger essential oil (GEO). In vitro activity was assessed through migration assay and antimicrobial study against foodborne bacteria. Phenolic compounds were diffused within 48 h of contact, and retained some of their antioxidant activity. Films demonstrated antimicrobial activity against both Gram-positive and -negative bacteria tested. The effect on the shelf life of fresh poultry meat was determined on samples wrapped in the biopolymers and stored under refrigeration for 15 days, through physicochemical and microbiological analyses. Compared to unwrapped poultry meat, samples wrapped in the bionanocomposites showed a reduction in microorganisms count of 1.2–2.6 log CFU/g, maintained color and pH values and thiobarbituric acid reactive substances (TBARS) index increased at a lower rate, extending fresh poultry meat shelf life. The incorporation of GEO enhanced the biopolymer activity, by reducing lipid oxidation and microbiological growth of the poultry meat. In contrast, reinforcement with MMT imprisoned the active compounds in the polymeric chain, hindering its activity. In conclusion, the bionanocomposites tested represent promising substitutes to commercial and unsustainable plastic films.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings8050177