Anthocyanin Characterization of Pilot Plant Water Extracts of Delonix regia Flowers

Felix Adje,Emile M Gaydou,Yves F Lozano,Augustin Adima,Paul Lozano,Georges Agbo N’Zi,Emmanuelle Meudec

doi:10.3390/molecules13061238

Abstract

Following the development of new applications of pilot plant scale extraction and formulation processes for natural active bioproducts obtained from various under-utilized tropical plants and herbs, we have manufactured water-extracts from Delonix regia flowers, grown in Ivory Coast. These extracts, which contain polyphenols, are traditionally home made and used as healthy bioproducts. They are reddish-coloured due to the presence of anthocyanins. The three major anthocyanins in these extracts have been characterized. The molecular structures were confirmed by LC-SM analysis. Amongst them, two are described for the first time in Delonix regia.

Highlights

Called flame tree, Delonix regia, is known as royal Poinciana regia or “flamboyant”.It belongs to the Caesalpiniacea family, according to the traditional classification or to the Fabaceae family, according to the phylogenetic classification
Few papers have reported on anthocyanin content in extracts of Delonix regia flowers [5, 6] and their possible uses, such as natural pH indicators [7]
We described the anthocyanin content of water-extract of flame tree flowers collected in Ivory Coast

Summary

Introduction

Delonix regia, is known as royal Poinciana regia or “flamboyant”.It belongs to the Caesalpiniacea family, according to the traditional classification or to the Fabaceae family, according to the phylogenetic classification. Few papers have reported on anthocyanin content in extracts of Delonix regia flowers [5, 6] and their possible uses, such as natural pH indicators [7]. One tentative anthocyanin identification was made in 1971 on Delonix regia flower extracts, collected near Cairo

Results

Conclusion