Foods (Jun 2020)

Improvement of Fatty Acid Profile in Durum Wheat Breads Supplemented with <i>Portulaca oleracea</i> L. Quality Traits of Purslane-Fortified Bread

  • Maria Grazia Melilli,
  • Vita Di Stefano,
  • Fabiola Sciacca,
  • Antonella Pagliaro,
  • Rosaria Bognanni,
  • Salvatore Scandurra,
  • Nino Virzì,
  • Carla Gentile,
  • Massimo Palumbo

DOI
https://doi.org/10.3390/foods9060764
Journal volume & issue
Vol. 9, no. 6
p. 764

Abstract

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The addition of functional ingredients to breads could have effects on preventing cardiovascular diseases, cancers and inflammation. The incorporation of 0–5–10–15% of three populations of dried purslane flour on the rheological, sensorial and nutritional quality of fortified durum wheat breads were evaluated. The increase in dried purslane (up to 15%) caused an increase in the resistance to the mixture and a consequent reduction in its extensibility. The “panel test” gave a largely positive evaluation in 10% of enrichment. The fatty acids in breads resulted higher with the 5% substitution. Contrary to what has been imagined, the increase in percentage of substitution to 10 and 15% did not lead to an increase in linoleic (omega-3) and α-linolenic (omega-6) acid and probably the cause is in the cooking. The total phenols content and the antioxidant potential, evaluated by ferric reducing antioxidant potential (FRAP) and 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays of the enriched breads increased with the percentage of the dry purslane substitution. The enrichment of the durum wheat flour with 5% purslane resulted in a good compromise to obtain good rheological characteristics of loaves and breads with decreased omega-6/omega-3 ratio and good antioxidant properties.

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