Fabiana Antognoni, Roberto Mandrioli, Alessandra Bordoni, Mattia Di Nunzio, Blanca Viadel, Elisa Gallego, María Paz Villalba, Lidia Tomás-Cobos, Danielle Laure Taneyo Saa, Andrea Gianotti
Journal: Nutrients 2018;9(11):1232
PMID: 29137113
While health benefits of whole grains has been long established, recent findings suggest ancient grains may provide additional cardiovascular and anti-inflammatory benefits. Einkorn is an ancient crop that has a favourable biochemical makeup however very little research exists on its properties. The aim of this study was to evaluate the nutritional characteristics and health benefits of eikorn-based bread compared to wheat-based breads. Both types of grains were subject to either conventional fermentation with baker’s yeast or sourdough fermentation with lactic acid. Breads were digested in-vitro using the Dynamic Gastrointestinal Digestor, a controlled system that simulates the in vivo digestion process. Bread content was characterised before and after digestion, and the product of their digestion was used to evaluate anti-inflammatory effects. The primary finding of this study was a significantly higher carotenoid level in einkorn compared to modern wheat. Additionally, the use of sourdough fermentation aided to preserve these carotenoids, thus improving the availability and accessibility of nutrient absorption in the final product. Based on this study, the authors conclude einkorn is a good candidate to produce bakery products with enhanced nutritional properties.
Nowadays the high nutritional value of whole grains is recognized, and there is an increasing interest in the ancient varieties for producing wholegrain food products with enhanced nutritional characteristics. Among ancient crops, einkorn could represent a valid alternative. In this work, einkorn flours were analyzed for their content in carotenoids and in free and bound phenolic acids, and compared to wheat flours. The most promising flours were used to produce conventional and sourdough fermented breads. Breads were in vitro digested, and characterized before and after digestion. The four breads having the best characteristics were selected, and the product of their digestion was used to evaluate their anti-inflammatory effect using Caco-2 cells. Our results confirm the higher carotenoid levels in einkorn than in modern wheats, and the effectiveness of sourdough fermentation in maintaining these levels, despite the longer exposure to atmospheric oxygen. Moreover, in cultured cells einkorn bread evidenced an anti-inflammatory effect, although masked by the effect of digestive fluid. This study represents the first integrated evaluation of the potential health benefit of einkorn-based bakery products compared to wheat-based ones, and contributes to our knowledge of ancient grains.
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