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  • 标题:Total Phenolic Compounds and Antioxidant Activity of Organic Vegetables Consumed in Brazil
  • 本地全文:下载
  • 作者:Verona Borges Ferreira , Thadia Turon Costa da Silva * , Silvia Regina Magalhães Couto , Armando Ubirajara Oliveira Sabaa Srur
  • 期刊名称:Food and Nutrition Sciences
  • 印刷版ISSN:2157-944X
  • 电子版ISSN:2157-9458
  • 出版年度:2015
  • 卷号:06
  • 期号:09
  • 页码:798-804
  • DOI:10.4236/fns.2015.69083
  • 语种:English
  • 出版社:Scientific Research Publishing
  • 摘要:Organic olericulture differs from conventional agriculture due to the absence of pesticide, synthetic fertilizers, genetically modified organisms, some food additives and ionizing radiation, producing vegetables with a different chemical composition and with different amounts of bioactive compounds. The objective of this study was to quantify, in organic vegetables consumed in Brazil, the amount of total phenolic compounds using Folin-Ciocalteu reagent and the antioxidant activity through DPPH method. Among the analyzed vegetables, the effectiveness in the antioxidant capacity was obtained in decreasing order, by the broccoli (69.35), kale (63.20), cabbage (35.72) and carrot (20.39), expressed in % of DPPH consumption after 30 minutes of reaction. The amount of total phenolic compounds (mg GAE/ml of fluid extract-FE) present in the kale (0.606), broccoli (0.511), cabbage (0.214) and carrots (0.124) demonstrates a positive correlation between phenolic amounts and the antioxidant activity of the vegetables analyzed.
  • 关键词:Organic Food; Bioactive Compounds; Vegetables; Antioxidant; DPPH
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