Antioxidant and anti-inflammatory properties of Ilex guayusa tea preparations : a comparison to Camellia sinensis teas

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Authors

Pardau, Madelein D.
Pereira, Andreia S.P.
Apostolides, Zeno
Serem, June Cheptoo
Bester, Megan Jean

Journal Title

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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.

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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.