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1.
Acta Sci Pol Technol Aliment ; 19(3): 255-260, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32978908

RESUMEN

BACKGROUND: In this study the effects of the use of chia mucilage - CM coating in combination with propolis liquid extract - PLE on the physico-chemical (total volatile basic nitrogen - TVB-N, peroxide value - PV, thiobarbituric acid - TBA) and bacteriological (total viable count - TVC, psychrophilic bacteria count -PBC) quality properties of sea bass fillets during storage at 2°C, as well as its potency, were investigated. METHODS: The fillets were randomly separated into four lots and subjected to the following treatments by dipping: chia mucilage - CM, chia mucilage + 0.1% PLE, chia mucilage + 0.3% PLE and control (uncoated), then stored at 2°C. RESULTS: The results showed that the chia musilage coating containing PLE was effective on TVC and PCA. While the shelf life of the control group was 8 days, the CM + 0.3% PLE group was 20 days. CONCLUSIONS: According to these results, it can be said that chia mucilage coating preserves the shelf life and quality of chilled seafood and can be used safely as a coating material.


Asunto(s)
Lubina , Embalaje de Alimentos/métodos , Conservación de Alimentos/métodos , Mucílago de Planta , Própolis , Salvia/química , Alimentos Marinos , Animales , Conservantes de Alimentos , Almacenamiento de Alimentos , Humanos , Extractos Vegetales/química , Polisacáridos , Semillas/química
2.
Antioxidants (Basel) ; 9(9)2020 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-32957633

RESUMEN

Consumer demand for food of high quality has driven research for alternative methods of food preservation on the one hand, and the development of new and rapid quality assessment techniques on the other hand. Recently, there has been a growing need and interest in healthier food products, which has led to an increased interest in natural preservatives, such as essential oils, plant extracts, and edible films and coatings. Several studies have shown the potential of using biopreservation, natural antimicrobials, and antioxidant agents in place of other processing and preservation techniques (e.g., thermal and non-thermal treatments, freezing, or synthetic chemicals). Changes in food quality induced by the application of natural preservatives have been commonly evaluated using a range of traditional methods, including microbiology, sensory, and physicochemical measurements. Several spectroscopic techniques have been proposed as promising alternatives to the traditional time-consuming and destructive methods. This review will provide an overview of recent studies and highlight the potential of spectroscopic techniques to evaluate quality changes in food products following the application of natural preservatives.

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