SciELO - Scientific Electronic Library Online

 
vol.37 número4Evaluación de la remoción de nutrimentos por el fruto de cultivares de mango (Mangifera indica L.) para el mercado de exportación en varias regiones productoras de MéxicoEl intercambio de gases y fluorescencia de Brosimum alicastrum índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Terra Latinoamericana

versão On-line ISSN 2395-8030versão impressa ISSN 0187-5779

Resumo

BARBA DE LA ROSA, Ana P.; LEON-RODRIGUEZ, Antonio de; LAURSEN, Bente  e  FOMSGAARD, Inge S.. Influence of the growing conditions on the flavonoids and phenolic acids accumulation in amaranth (Amaranthus hypochondriacus L.) leaves. Terra Latinoam [online]. 2019, vol.37, n.4, pp.449-457.  Epub 24-Mar-2020. ISSN 2395-8030.  https://doi.org/10.28940/terra.v37i4.541.

Phytochemicals or phenolic compounds are important natural bioactive molecules that plants accumulate in response to environmental conditions and may exert beneficial effects on health by protecting humans against many diseases. The aim of this work was to analyze the influence of biotic and abiotic stress on the accumulation of flavonoids and phenolic acids on leaves of two cultivars of Amaranthus hypochondriacus, which are differentiated by the colour of their leaves (red or green). Phenolic compounds were extracted using the accelerated solvent extraction (ASE) method and their identification was carried out by LC-MS analysis. Rutin was the main flavonoid in amaranth leaves; the highest concentrations were found in green leaves when plants were subjected to stress (9715 μg g-1). Phenolic acids were minor compounds; ferulic acid was only present in red leaves (0.5 μg g-1) and p-coumaric acid only in green leaves (0.7 μg g-1). Our results indicate that leaves from A. hypochondriacus, the main species that produce edible seeds, are a good source of phytochemical compounds and their accumulation could be driven by the growing conditions.

Palavras-chave : abiotic stress; accelerated solvent extraction; biotic stress; electrospray mass spectrometry; high performance liquid chromatography; phenolic compounds.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )