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Chemical, antimicrobial, and molecular characterization of mortino (Vaccinium floribundum Kunth) fruits and leaves.


ABSTRACT: Fruits and leaves of Vaccinium spp. are known for their high content of bioactive compounds, but the chemical and biological characteristics of mortiño (Vaccinium floribundum Kunth) have not been fully described. In this study, the levels of polyphenols, antioxidant capacity, anthocyanins, antimicrobial activity, and genetic variability were determined in mortiño plants. The Folin-Ciocalteu's, ABTS scavenging, pH differential, and well diffusion methods were used to evaluate the levels of polyphenols, antioxidant capacity, anthocyanins, and antimicrobial activity, respectively. The genetic variability was evaluated by sequencing of the matK and rbcl DNA regions. Polyphenol content was up to 229.81 mg gallic acid equivalents/100 g, the average antioxidant capacity was 11.01 mmol Trolox equivalents/100 g, and anthocyanin content was up to 1,095.39 mg/100 g. Mortiño extracts significantly inhibited the growth of Gram-negative bacteria including Burkholderia gladioli, Burkholderia cepacia, Salmonella Typhimurium, Vibrio parahaemolyticus, Vibrio harveyi, Vibrio vulnificus, Escherichia coli, and Pseudomona aeruginosa, as well as Gram-positive bacteria such as Probionibacterium propionicum, Staphylococcus aureus, and Enterococcus faecalis showing greater inhibition halos than those produced by the antibiotic ampicillin. A polymorphic nucleotide was found in position 739 of the matK region. This study shows the potential of mortiño for the food and pharmaceutical industries.

SUBMITTER: Llivisaca S 

PROVIDER: S-EPMC6021730 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Chemical, antimicrobial, and molecular characterization of mortiño (<i>Vaccinium floribundum</i> Kunth) fruits and leaves.

Llivisaca Susana S   Manzano Patricia P   Ruales Jenny J   Flores José J   Mendoza Joffre J   Peralta Esther E   Cevallos-Cevallos Juan M JM  

Food science & nutrition 20180326 4


Fruits and leaves of <i>Vaccinium</i> spp. are known for their high content of bioactive compounds, but the chemical and biological characteristics of mortiño (<i>Vaccinium floribundum</i> Kunth) have not been fully described. In this study, the levels of polyphenols, antioxidant capacity, anthocyanins, antimicrobial activity, and genetic variability were determined in mortiño plants. The Folin-Ciocalteu's, ABTS scavenging, pH differential, and well diffusion methods were used to evaluate the le  ...[more]

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