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245	1	0	_aMixture design methodology and predictive modeling for developing active formulations using essential oils and citrus extract against foodborne pathogens and spoilage microorganisms in rice
490	0		_vJournal of Food Science, 87(1), p.353-369, 2022
520	3		_aThe antibacterial and antifungal effects of six plant-derived essential oils (EOs)and two types of citrus extracts (CEs)were studied against two pathogenic bacteria (Salmonella Typhimurium and Escherichia coli O157:H7)and three fungi (Aspergillus niger, Penicillium chrysogenum, and Mucor circinelloides). A broth microdilution assay and checkerboard method were used to measure the minimal inhibitory concentration (MIC)of each extract and the possible interactions between them. The MIC assay showed that cinnamon EO, Mediterranean EO, Southern formulation, citrus EO, organic citrus extract (OCE), and natural citrus extract (NCE)had the highest antimicrobial and antifungal activity. The checkerboard method showed that the Mediterranean EO+OCE combination acted in synergy against all tested pathogens. A centroid mixture design was used to develop active formulations by predicting optimal concentrations of EO/CEs for increased antibacterial/antifungal activity. A mixture of four formulations (625 ppm OCE, 313 ppm Mediterranean EO, 625 ppm citrus EO, and 313 ppm cinnamon EO)named as active formulation 1, and the mixture from five formulations (625 ppm NCE, 625 ppm Asian formulation, 313 ppm Southern formulation, 625 ppm cinnamon EO, and 313 ppm savory thyme EO)named as active formulation 2, were formulated and tested because of their high microbicidal effectiveness. In situ tests with rice showed a significant reduction (P ? 0.05)of all tested pathogenic bacteria and fungi from the vapor of active formulations 1 and 2 after 28 days of storage. PRACTICAL APPLICATION: Active formulations (essential oils and citrus extracts)developed in the study are highly effective against foodborne pathogens. Active formulations in this study could be used as natural preservatives in the food industry for controlling foodborne diseases and spoilage organisms in stored foods.
650	1	4	_aANTIMICROBIAL ACTIVITY
650	1	4	_aCITRUS EXTRACT
650	1	4	_aESSENTIAL OIL
650	1	4	_aFOOD PATHOGENS
650	1	4	_aSTORED RICE
700	1	2	_aBegum, T.
700	1	2	_aFollett, P. A.
700	1	2	_aShankar, S.
700	1	2	_aMahmud, J.
700	1	2	_aSalmieri, S.
700	1	2	_aLacroix, M.
856	4	0	_uhttps://drive.google.com/file/d/1Vn89ybF-Ze6U16qVZvh4JXg55hXWTeCQ/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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