Betalains and Phenolic Compounds of Leaves and Stems of Alternanthera brasiliana and Alternanthera tenella

Betacyanins and phenolic compounds from acetonitrile:acidified water extracts of Alternanthera brasiliana and Alternanthera tenella were characterized and quantified using a high-performance liquid chromatography system coupled with diode array and electrospray...

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Autores principales:	Deladino, Lorena, Alvarez, I., De Ancos, B., Sánchez Moreno, C., Molina García, A. D., Schneider Teixeira, Aline
Formato:	Articulo Preprint
Lenguaje:	Inglés
Publicado:	2017
Materias:	Ciencias Exactas betanin amaranthine polyphenols kaempferol vitexin food additives
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/108727 https://www.sciencedirect.com/science/article/abs/pii/S0963996917301680
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-108727
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institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas betanin amaranthine polyphenols kaempferol vitexin food additives
spellingShingle	Ciencias Exactas betanin amaranthine polyphenols kaempferol vitexin food additives Deladino, Lorena Alvarez, I. De Ancos, B. Sánchez Moreno, C. Molina García, A. D. Schneider Teixeira, Aline Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
topic_facet	Ciencias Exactas betanin amaranthine polyphenols kaempferol vitexin food additives
description	Betacyanins and phenolic compounds from acetonitrile:acidified water extracts of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i> were characterized and quantified using a high-performance liquid chromatography system coupled with diode array and electrospray mass spectrometry detection. Four betacyanins (amaranthine, isoamaranthine, betanin and isobetanin) were tentatively identified and quantified. Twenty eight phenolic compounds of four different families (hydroxybenzoic and hydroxycinnamic acids, flavones and flavonols) were separated and characterized on the basis of their accurate MS and MS/MS information out of which ten compounds were confirmed by authentic standards. These plant species could be considered as an especially rich source of natural bioactive compounds and potential food colorants. <i>A. brasiliana</i> showed the highest betacyanin and polyphenols content (89 μg/g and 35243 μg/g, respectively). Among polyphenols, flavonols were the more abundant (kaempferol-glucoside, kaempferol-rutinoside and kaempferol-rhamnosyl-rhamnosylglycoside). Meanwhile, <i>A. tenella</i> showed a different polyphenols profile with flavones as major compounds (glucopyranosil-vitexin and vitexin). As a novelty, pentosylvitexin and pentosyl-isovitexin were detected for the first time in <i>Alternanthera</i> plants. Both <i>A. brasiliana</i> and <i>A. tenella</i> leaves showed high total polyphenol content and in vitro antioxidant activity (FRAP). These results provide an analytical base concerning the phenolic and betalains composition and the antioxidant properties of two members of the promising <i>Alternanthera</i> gender, for subsequent applications, such as functional food ingredients.
format	Articulo Preprint
author	Deladino, Lorena Alvarez, I. De Ancos, B. Sánchez Moreno, C. Molina García, A. D. Schneider Teixeira, Aline
author_facet	Deladino, Lorena Alvarez, I. De Ancos, B. Sánchez Moreno, C. Molina García, A. D. Schneider Teixeira, Aline
author_sort	Deladino, Lorena
title	Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
title_short	Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
title_full	Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
title_fullStr	Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
title_full_unstemmed	Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>
title_sort	betalains and phenolic compounds of leaves and stems of <i>alternanthera brasiliana</i> and <i>alternanthera tenella</i>
publishDate	2017
url	http://sedici.unlp.edu.ar/handle/10915/108727 https://www.sciencedirect.com/science/article/abs/pii/S0963996917301680
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Betalains and Phenolic Compounds of Leaves and Stems of <i>Alternanthera brasiliana</i> and <i>Alternanthera tenella</i>

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