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Compounds leached from quinoa seeds inhibit matrix metalloproteinase activity and intracellular reactive oxygen species

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Quinoa (Chenopodium quinoa Willd.) is a seed crop rich in bioactive compounds including phytoecdysones (especially 20‐hydroxyecdysone, 20HE), polyphenols, proteins and essential fatty acids. We previously reported a method to leach and concentrate quinoa bioactives into a complex phytochemical mixture termed quinoa leachate (QL). Here, we aimed to determine the effect of QL and its chemically distinct fractions on five biochemical endpoints relevant to skin care applications: (i) cell viability, (ii) matrix metalloproteinase (MMP) mRNA expression, (iii) MMP enzymatic activity, (iv) tyrosinase enzymatic activity and (v) intracellular reactive oxygen species (ROS) production.
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Keywords: ageing; cell culture; chemical analysis; oxidative damage; phytochemistry; phytoecdysteroid

Document Type: Research Article

Publication date: April 1, 2015

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