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Open AccessArticle

Application of Autoclave Treatment for Development of a Natural Wheat Bran Antioxidant Ingredient

1
Agrarian Technological Institute of Castilla and Leon (ITACyL), Ctra. Burgos Km 119, Finca Zamadueñas, 47071 Valladolid, Spain
2
Department of Food Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Juan de la Cierva, 3, 28006 Madrid, Spain
3
Department of Agriculture and Forestry Engineering, Food Technology, College of Agricultural and Forestry Engineering, University of Valladolid, Av. Madrid, 44, 34004 Palencia, Spain
*
Author to whom correspondence should be addressed.
Foods 2020, 9(6), 781; https://doi.org/10.3390/foods9060781
Received: 13 May 2020 / Revised: 4 June 2020 / Accepted: 5 June 2020 / Published: 12 June 2020
(This article belongs to the Special Issue Development of Functional Food Ingredients from Natural Resources)
The study evaluated the effect of autoclaving as a hydrothermal treatment on the quality and bioactivity of wheat bran (WB) with the objective of producing a natural ingredient with enhanced healthy properties. Nutritional, antioxidant, techno-functional and sensorial parameters were studied, and temperatures of 100, 115 and 130 °C were explored. Of these, 130 °C was found to be the best treatment, resulting in an ingredient with high storage stability, antioxidant properties, a four-fold increase in the concentration of free ferulic acid (compared with non-treated WB), and increased content of apigenin-6-C-arabinoside-8-C-hexoside, a flavonoid with reported antioxidant and antifungal properties. On the other hand, the autoclave treatment enhanced water absorption capacity and reduced WB pasting viscosity, mainly at higher temperature (130 °C), which would allow incorporation of the treated WB in liquid matrices such as juices, soups or milkshakes, among others. Although the glycemic index (GI) of the autoclaved samples increased, the use of intermediate particle size of 106 to 300 µm could contribute to the reduction of the glycemic load. View Full-Text
Keywords: wheat bran; autoclave; antioxidant properties; phenolic compounds; techno-functional properties; ferulic acid wheat bran; autoclave; antioxidant properties; phenolic compounds; techno-functional properties; ferulic acid
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Rico, D.; Villaverde, A.; Martinez-Villaluenga, C.; Gutierrez, A.L.; Caballero, P.A.; Ronda, F.; Peñas, E.; Frias, J.; Martin Diana, A.B. Application of Autoclave Treatment for Development of a Natural Wheat Bran Antioxidant Ingredient. Foods 2020, 9, 781.

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