Determination of polyphenolic profile, antioxidant activity and antibacterial properties of maqui [Aristotelia chilensis (Molina) Stuntz] a Chilean blackberry
Author
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Genskowsky, Estefania
Author
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Puente Díaz, Luis Andrés
Author
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Pérez Álvarez, Jose A.
Author
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Fernández López, Juana
Author
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Muñoz, Loreto A.
Author
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Viuda Martos, Manuel
Admission date
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2016-12-23T16:17:36Z
Available date
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2016-12-23T16:17:36Z
Publication date
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2016
Cita de ítem
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Journal of the Science of Food and Agriculture. Volumen: 96 Número: 12 Páginas: 4235-4242
es_ES
Identifier
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10.1002/jsfa.7628
Identifier
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https://repositorio.uchile.cl/handle/2250/142064
Abstract
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BACKGROUNDThe aim of the present study was to determine (1) the polyphenolic profile (phenolic acids, flavonoids and anthocyanins), (2) the antioxidant using four different methodologies (DPPH, ABTS, FRAP and FIC) and (3) the antibacterial properties of maqui berry [Aristotelia chilensis (Molina) Stuntz] (MB) grown in Chile.
RESULTSThe HPLC analysis of MB showed a total of 19 polyphenolic compounds identified as anthocyanins (eight compounds), flavonols (10 compounds) and ellagic acid. Delphinidin derivatives were the predominant anthocyanins while quercetin derivatives were the predominant flavonols. MB showed an antioxidant activity measured with DPPH, ABTS, FRAP and FIC methods of 28.18, 18.66, 25.22g Trolox equivalent kg(-1) and 0.12g ethylenediaminetetraacetic acid equivalent kg(-1), respectively. With regard to the antibacterial activity, all strains tested were affected by MB. Aeromonas hydrophila and Listeria innocua showed the highest sensitivity to maqui berry extracts with MIC values of 40 and a 50mg mL(-1), respectively.
CONCLUSIONSThe results suggest that maqui berry has a great potential to be employed in the food industry as potential food ingredient to functional food development or as bio-preservative. (c) 2016 Society of Chemical Industry
Determination of polyphenolic profile, antioxidant activity and antibacterial properties of maqui [Aristotelia chilensis (Molina) Stuntz] a Chilean blackberry