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Extension of Poultry Meat Shelf Life Using Cynara cardunculus L. Leaf Extracts as a Natural Preservative
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Resumo(s)
Food additives are used to prevent food spoilage and extend its shelf life. However, concerns regarding the potential health implications associated with some synthetic additives have prompted research efforts aimed at identifying natural alternatives, such as plant extracts. Cynara cardunculus L. (cardoon) is known for its antimicrobial and antioxidant properties. The aim of this study was to evaluate the capability of ethanolic food-grade extracts from cultivated cardoon and globe artichoke leaves to preserve poultry breast meat during refrigerated storage. A total of seven treatment groups were tested: one control group (no extract) and six active groups with 0.5%, 1%, and 2% (w/w) of either cultivated cardoon or globe artichoke leaf extracts. Lipid oxidation, moisture, colour, pH, acidity, and microbial growth were assessed in poultry meat samples over 15 days. Both extracts were effective in extending shelf life, up to 11 days, by delaying lipid oxidation and microbial growth. Cardoon extract (1% w/w) displayed superior antimicrobial efficacy, maintaining microbial counts below 5 Log CFU/g meat until day 15, compared to the control. Cultivated cardoon leaf extract proves promising as a natural antimicrobial and antioxidant, extending the shelf life of poultry meat. This presents an opportunity to maintain the quality of meat products, aligning with consumer preferences for natural ingredients and sustainable practices.
Descrição
Funding Information:
This work was supported by FCT—Fundação para a Ciência e Tecnologia/MECI through the MEtRICs research unit (UID/4077: Mechanical Engineering and Resource Sustainability Center). This work was developed within the scope of the CardAPium Project (2023.15813.PEX) financed by Portuguese national funds Fundação para a Ciência e a Tecnologia (FCT) (https://doi.org/10.54499/2023.15813.PEX). The work was supported by UIDB/00211/2020 with funding from FCT/MECI through national funds.
Publisher Copyright:
© 2025 by the authors.
Palavras-chave
Antimicrobial Antioxidant Cultivated cardoon Globe artichoke Lipid oxidation Natural additive Food Science Microbiology Health(social science) Health Professions (miscellaneous) Plant Science