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Polyphenolic content and bactericidal effect of Mexican Citrus limetta and Citrus reticulata

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Abstract

In this study, total phenolics, total flavonoids, hesperidin and ascorbic acid contents in bagasse, juice and seed of mexican sweet lime (Citrus limetta) and mandarine (Citrus reticulata) were determined at two commercial maturity stages (maturation index), as well as their bactericidal effect on Escherichia coli and Staphylococcus aureus. The results showed that bagasses had the highest total phenolics, total flavonoids, and hesperidin content for both, C. limetta, and C. reticulata; highest ascorbic acid contents were found in C. limetta juice (3.36 ± 0.25 mg g−1 DW) and C. reticulata bagasse (3.83 ± 0.37 mg g−1 DW). All tested extracts showed bacterial growth inhibition at 50 and 800 µg mL−1. Bagasse extracts of both fruits showed the highest inhibitions (>90%) on tested bacteria. Total phenolics, total flavonoids, and hesperidin contents, as well as bactericidal effect increased with maturity. Results indicated that both Mexican citric fruits (C. limetta and C. reticulata) were good sources of antioxidant and bactericidal agents.

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Acknowledgements

Authors are grateful to Postgraduate Department of Chemical Engineering at Universidad Michoacana de San Nicolás de Hidalgo. The work was partially supported by the Consejo Nacional de Ciencia y Tecnología, México [Grant Number 220045/206495].

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Correspondence to Ma. del Carmen Chávez-Parga.

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Damián-Reyna, A.A., González-Hernández, J.C., Maya-Yescas, R. et al. Polyphenolic content and bactericidal effect of Mexican Citrus limetta and Citrus reticulata . J Food Sci Technol 54, 531–537 (2017). https://doi.org/10.1007/s13197-017-2498-7

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  • DOI: https://doi.org/10.1007/s13197-017-2498-7

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