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

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

Foods (Basel, Switzerland) (2020-06-14)
Maria Grazia Melilli, Vita Di Stefano, Fabiola Sciacca, Antonella Pagliaro, Rosaria Bognanni, Salvatore Scandurra, Nino Virzì, Carla Gentile, Massimo Palumbo
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
(S)-(−)-N-(Trifluoroacetyl)pyrrolidine-2-carbonyl chloride solution, 0.1 M in methylene chloride
Supelco
F.A.M.E. Mix, C8 - C24, certified reference material, ampule of 100 mg (Neat)