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  • 标题:Effect of processing on antioxidant potential and total phenolics content in beet (Beta vulgaris L.)
  • 本地全文:下载
  • 作者:Raupp, Dorivaldo da Silva ; Rodrigues, Eliseu ; Rockenbach, Ismael Ivan
  • 期刊名称:Food Science and Technology (Campinas)
  • 印刷版ISSN:0101-2061
  • 电子版ISSN:1678-457X
  • 出版年度:2011
  • 卷号:31
  • 期号:3
  • 页码:688-693
  • DOI:10.1590/S0101-20612011000300021
  • 语种:English
  • 出版社:Sociedade Brasileira de Ciência e Tecnologia de Alimentos
  • 摘要:

    The antioxidant capacity of beet is associated with non-nutritive constituents, such as phenolic compounds. The purpose of this research was to evaluate the effect of two different heat-processing techniques (drying and canned) on the antioxidant potential (ABTS) and phenolics content of beets. A forced air circulation dehydrator was used for the drying. Drying at high temperatures (100 + 90 °C/5.6 hours; 90 °C/6 hours) increased the antioxidant potential of the processed products while mild drying conditions decreased it (80 °C/6 hours; 100 + 70 °C/6 hours) or had no effect on it (70 °C/7 hours; 100 + 80 °C/6 hours). For the canned products, the antioxidant potential did not differ according to the pH (4.2 to 3.8) for any of the four acids tested. Some processing methods influenced the antioxidant potential of the processed products, and this was also dependent on changes in the total phenolics content.

  • 关键词:Beta vulgaris;beterraba;atividade antioxidante;compostos fenólicos
  • 其他关键词:Beta vulgaris;beet;antioxidant activity;phenolic compounds
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