Drying and pickling on phenols, capsaicinoids, and free radical-scavenging activity in Anaheim and Jalapeño peppers

  • Blanco-Rios A
  • Medina-Juarez L
  • Gamez-Meza N
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Abstract

ABSTRACT: The effects of sun-drying, air-drying and pickling processes on phenol and capsaicinoid contents, and free radical-scavenging activity [2,2-diphenyl-1-picrylhydrazyl (DPPH), and 2,2′-azino-bis 3-ethylbenzthiazoline-6-sulphonic acid (ABTS)] in Anaheim (red) and Jalapeño peppers were evaluated. Sun-drying process in Anaheim pepper caused the highest phenols retention (100%), and the free radical-scavenging activity (100%) when compared with air-drying (80%). Pickling process in Jalapeño pepper caused a moderate reduction on the phenol content (24%) and the radical-scavenging activity by DPPH (35%). Processes studied did not cause variations in the capsaicinoid fractions neither in its radical-scavenging activity. Results suggested that dried and pickled peppers are a good source of phenolics and capsaicinoids with antioxidant activity.RESUMO: Os efeitos dos processos de secagem ao sol, secagem ao ar e conserva sobre o conteúdo dos fenóis e capsaicinoides, assim como a atividade de eliminação de radicais livres [2,2-difenil-1-picrilhidrazilo (DPPH), e ácido 2, 2’-azino-bis 3-etilbenztiazolino-6-sulfónico ABTS)] em pimentas Anaheim (vermelho) e Jalapeño foram avaliados. A secagem ao sol mostrou maior retenção de fenóis (100%) e atividade de eliminação dos radicais livres (100%) quando foi comparada com a secagem ao ar (80%). O processo de conserva mostrou uma redução moderada no teor de fenóis (24%) e na capacidade de remoção de radicais (35%). Os processos estudados não causaram alterações nas frações capsaicinoides nem na seu atividade de eliminação de radicais. Os resultados sugerem que as pimentas secas e em conserva são uma boa fonte de fenóis e capsaicinoides com atividade antioxidante.

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APA

Blanco-Rios, A. K., Medina-Juarez, L. A., & Gamez-Meza, N. (2017). Drying and pickling on phenols, capsaicinoids, and free radical-scavenging activity in Anaheim and Jalapeño peppers. Ciência Rural, 47(9). https://doi.org/10.1590/0103-8478cr20160722

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