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Thursday, 22 October 2015

Infusions and decoctions of Castanea sativa flowers as effective antitumor and antimicrobial matrices

ndustrial Crops and Products

Volume 62, December 2014, Pages 42-46

Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5301-855 Bragança, Portugal
Department of Nutrition and Bromatology II, Faculty of Pharmacy, Complutense University of Madrid, Pza Ramón y Cajal, s/n. E-28040 Madrid, Spain
Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal

Abstract

Chestnut trees are one of the most important crops in the north-eastern part of Portugal, representing millions of euros of yearly income. There are many ancestral claims of the health benefits of the consumption of chestnut flowers in infusions that remain unproven. In this manuscript, the antitumor and antimicrobial potential of chestnut flowers from two cultivars, Judia and Longal, extracted through infusions and decoctions are reported. In terms of antitumor activity, the most sensitive cell lines were HepG2 and HCT15 with the cultivar Judia showing higher activity for HCT15 and Longal for HepG2, regardless of the extraction methods. Regarding the antibacterial activity of the extracts, decoctions proved to be more effective with lower minimum inhibition concentrations, while infusions were better in terms of antifungal activity. The good overall antimicrobial activity could justify the inclusion of the flowers in food chain processing to act as a natural antimicrobial. Furthermore, the results corroborate some of the ancestral claims of the consumption of these flowers. © 2014 Elsevier B.V.

Author keywords

Antibacterial; Antifungal; Antitumor; Castanea sativa; Decoction; Infusion

Indexed keywords

Engineering controlled terms: Cell culture; Drug infusion; Fruits; Microorganisms
Anti-fungal; Anti-tumors; Antibacterial; Castanea sativa; Decoction
Engineering main heading: Drug products; Drug infusion
GEOBASE Subject Index: antimicrobial activity; cultivar; deciduous tree; diet; disease treatment; ethnobotany; extraction method; flower; medicinal plant; plant extract; tumor; concentration (composition); crop plant; food chain; health care; tree
Regional Index: Portugal
Species Index: Castanea sativa
ISSN: 09266690 CODEN: ICRDESource Type: Journal Original language: English
DOI: 10.1016/j.indcrop.2014.08.016Document Type: Article
Publisher: Elsevier