Antioxidant and anti-inflammatory properties of Ilex guayusa tea preparations : a comparison to Camellia sinensis teas
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Date
Authors
Pardau, Madelein D.
Pereira, Andreia S.P.
Apostolides, Zeno
Serem, June Cheptoo
Bester, Megan Jean
Journal Title
Journal ISSN
Volume Title
Publisher
Royal Society of Chemistry
Abstract
Ilex guayusa tea preparations are now commercially available as Runa tea. Little is known regarding the antioxidant and anti-inflammatory bioactivities of this tea. The I. guayusa teas had a total polyphenolic content between 54.39 and 67.23 mg GAE/g dry mass and peroxyl radical scavenging capacities between 1773.41 and 2019 µmol TE/g dry mass, nearly half of that for the Camellia sinensis teas. The I. guayusa teas afforded 60-80% protection from oxidative stress in the Caco-2 cellular antioxidant assay, comparable to the C. sinensis teas. The anti-inflammatory activity in lipopolysaccharide-stimulated RAW 264.7 cells of I. guayusa teas was similarly comparable to the C. sinensis teas with nitric oxide production reduced by 10-30%. Major compounds identified by mass spectrometry were the phenolic mono- and dicaffeoylquinic acid derivatives. I. guayusa teas are a good source of dietary phenolic compounds with cellular antioxidant and anti-inflammatory properties.
Description
Keywords
Ilex guayusa, Runa tea, Antioxidant, Anti-inflammatory, Affeoylquinic acid
Sustainable Development Goals
Citation
Pardau, M.D., Pereira, Andreia S.P., Apostolides, Z., Serem, J.C. & Bester, M.J. 2017, 'Antioxidant and anti-inflammatory properties of Ilex guayusa tea preparations : a comparison to Camellia sinensis teas', Food and Function, vol. 8, no. 12, pp. 4601-4610.