Extraction of 2′-O-apiosyl-6′-O-crotonic acid-betanin from the ayrampo seed (Opuntia soehrensii) cuticle and its use as an emitting layer in an organic light-emitting diode

Abstract

The molecule 2′-O-apiosyl-6′-O-crotonic acid-betanin (called Achkiy) was obtained after an ecofriendly and low-cost purification process of the extract from the ayrampo seed cuticle.

Betanin dye extracted from ayrampo (Opuntia soehrensii) seeds to develop dye-sensitized solar cells

“…21 The redox potential of the major betacyanins pigment was 0.38 V vs. Ag/AgCl (AY1). 10,22,23 The excited state redox potential is approximately −1.76 V vs. Ag/AgCl (estimated by subtracting the energy required to excite an electron from the ground state to the excited state, ca. 2.14 eV).…”

“…Experimental details outlining the preparation of the seed material and extraction of pigments AY are described by Rivera et al 10 For this work, we set up others without using ketone summarised in Fig. 2 .…”

“…The focus of this work is a family of molecules known as Achkiy, 10 which have a variety of colours depending on their structure. The core structure is an iminium derivative of betalamic acid and the dyes within this group are classified according to the substituents, R 1 and R 2 in Fig.…”

“…Recently, the ayrampo dye has been applied in Organic Light-Emitting Diode (OLED) devices and surpassed the power output of the commonly used anthocyanin sources. 10 The small selection of papers that report the application of betalains in DSSCs, used extracts from red beets. Here we show, through experiment and theory that the ayrampo seeds (AY) ( Fig.…”