alexa Olea europaea L. leaf extract and derivatives: antioxidant properties.
Chemistry

Chemistry

Medicinal Chemistry

Author(s): Briante R, Patumi M, Terenziani S, Bismuto E, Febbraio F,

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Abstract This paper reports a very simple and fast method to collect eluates with high amounts of hydroxytyrosol, biotransforming Olea europaea L. leaf extract by a thermophilic beta-glycosidase immobilized on chitosan. Some phenolic compounds in the leaf tissue and in the eluates obtained by biotransformation are identified. To propose the eluates as natural substances from a vegetal source, their antioxidant properties have been compared with those of the leaf extract from which they are originated. The eluates possess a higher concentration of simple phenols, characterized by a stronger antioxidant capacity, than those available in extra virgin olive oils and in many tablets of olive leaf extracts, commercially found as dietetic products and food integrators.
This article was published in J Agric Food Chem and referenced in Medicinal Chemistry

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