Secoiridoid polyphenols (oleuropein)

Olive leaves contain several secoiridoids, including oleuropein (the greater part) but also oleosid, oleurosid… The extract from olive leaves is traditionally used for its hypotensive properties. Olive-based polyphenols (hydroxytyrosol and its derivatives, such as oleuropein) were recently recognized by the EFSA (European Food Safety Authority) for their health benefits in preventing LDL, low-density lipoprotein oxidation. Many reports also recognized the anti-oxidant, anti-microbial and anti-inflammatory properties of oleuropein.

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Iridoids are monoterpene derivatives with an iridane ring; seco-iridoids are a subclass of iridoids derived from the cleavage of the cyclopentane ring at the 7,8 bond.

DRT produces Effialine, an extract of olive leaves high in oleuropein.