Natural betalains supported on γ-alumina: A wide family of stable pigments

Erik Pérez-Ramírez; Enrique Lima; Ariel Guzmán

doi:10.1016/j.dyepig.2015.03.040

Natural betalains supported on γ-alumina: A wide family of stable pigments

Erik Pérez-Ramírez, Enrique Lima, Ariel Guzmán

Escuela Superior de Ingeniería Química e Industrias Extractivas (ESIQIE)

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Natural betalain chromophores, extracted from bougainvillea flowers, were stabilised on different surfaces of γ-alumina matrices. This strategy was used to produce a family of hybrid pigments including one yellow and several purple hues. Both textural and structural parameters of γ-alumina were identified as important factors to stabilise the chromophores. Particularly, a high amount of coordinative unsaturated sites of aluminium, high surface specific areas and pore diameters as high as 15 nm are suitable to stabilise the purple chromophores.

Original language	English
Pages (from-to)	161-168
Number of pages	8
Journal	Dyes and Pigments
Volume	120
DOIs	https://doi.org/10.1016/j.dyepig.2015.03.040
State	Published - 1 Sep 2015

Keywords

Adsorption
Alumina
Betalain
Hybrid materials
Porous
Purple pigments

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10.1016/j.dyepig.2015.03.040

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title = "Natural betalains supported on γ-alumina: A wide family of stable pigments",

abstract = "Natural betalain chromophores, extracted from bougainvillea flowers, were stabilised on different surfaces of γ-alumina matrices. This strategy was used to produce a family of hybrid pigments including one yellow and several purple hues. Both textural and structural parameters of γ-alumina were identified as important factors to stabilise the chromophores. Particularly, a high amount of coordinative unsaturated sites of aluminium, high surface specific areas and pore diameters as high as 15 nm are suitable to stabilise the purple chromophores.",

keywords = "Adsorption, Alumina, Betalain, Hybrid materials, Porous, Purple pigments",

author = "Erik P{\'e}rez-Ram{\'i}rez and Enrique Lima and Ariel Guzm{\'a}n",

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doi = "10.1016/j.dyepig.2015.03.040",

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T1 - Natural betalains supported on γ-alumina

T2 - A wide family of stable pigments

AU - Pérez-Ramírez, Erik

AU - Lima, Enrique

AU - Guzmán, Ariel

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Natural betalain chromophores, extracted from bougainvillea flowers, were stabilised on different surfaces of γ-alumina matrices. This strategy was used to produce a family of hybrid pigments including one yellow and several purple hues. Both textural and structural parameters of γ-alumina were identified as important factors to stabilise the chromophores. Particularly, a high amount of coordinative unsaturated sites of aluminium, high surface specific areas and pore diameters as high as 15 nm are suitable to stabilise the purple chromophores.

AB - Natural betalain chromophores, extracted from bougainvillea flowers, were stabilised on different surfaces of γ-alumina matrices. This strategy was used to produce a family of hybrid pigments including one yellow and several purple hues. Both textural and structural parameters of γ-alumina were identified as important factors to stabilise the chromophores. Particularly, a high amount of coordinative unsaturated sites of aluminium, high surface specific areas and pore diameters as high as 15 nm are suitable to stabilise the purple chromophores.

KW - Adsorption

KW - Alumina

KW - Betalain

KW - Hybrid materials

KW - Porous

KW - Purple pigments

UR - http://www.scopus.com/inward/record.url?scp=84928550914&partnerID=8YFLogxK

U2 - 10.1016/j.dyepig.2015.03.040

DO - 10.1016/j.dyepig.2015.03.040

M3 - Artículo

SN - 0143-7208

VL - 120

SP - 161

EP - 168

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Natural betalains supported on γ-alumina: A wide family of stable pigments

Abstract

Keywords

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