title: Polyphenolic content and bactericidal effect of MexicanCitrus limettaandCitrus reticulata.
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 onEscherichia coliandStaphylococcus aureus. The results showed that bagasses had the highest total phenolics, total flavonoids, and hesperidin content for both,C. limetta, andC. reticulata; highest ascorbic acid contents were found inC. limettajuice (3.36 ± 0.25 mg g-1DW) andC. reticulatabagasse (3.83 ± 0.37 mg g-1DW). 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. limettaandC. reticulata) were good sources of antioxidant and bactericidal agents.
authors.affiliation: Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Francisco J. Mújica S/N, Col. Felicitas del Río, 58030 Morelia, Michoacán Mexico.
authors.forename: Andrés Alejandro
authors.initials: AA
authors.lastname: Damián-Reyna
authors.affiliation: Laboratorio de Bioquímica del Departamento de Ing. Bioquímica del Instituto Tecnológico de Morelia, Av. Tecnológico # 1500, Colonia Lomas de Santiaguito, 58120 Morelia, Michoacán Mexico.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: González-Hernández
authors.affiliation: Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Francisco J. Mújica S/N, Col. Felicitas del Río, 58030 Morelia, Michoacán Mexico.
authors.forename: Rafael
authors.initials: R
authors.lastname: Maya-Yescas
authors.affiliation: Facultad de Químico Farmacobiología, Universidad Michoacana de San Nicolás de Hidalgo, Tzintzuntzan #173, Colonia Matamoros, 58240 Morelia, Michoacán Mexico.
authors.forename: Consuelo
authors.initials: C
authors.lastname: de Jesús Cortés-Penagos
authors.affiliation: Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Francisco J. Mújica S/N, Col. Felicitas del Río, 58030 Morelia, Michoacán Mexico.
authors.forename: Ma
authors.initials: M
authors.lastname: Del Carmen Chávez-Parga
keywords: Bactericidal; Citrus; Flavonoids; Hesperidin; Maturity; Phenolics