| Title | Functional Bread Produced in a Circular Economy Perspective: The Use of Brewers' Spent Grain |
|---|---|
| ID_Doc | 28916 |
| Authors | Baiano, A; la Gatta, B; Rutigliano, M; Fiore, A |
| Title | Functional Bread Produced in a Circular Economy Perspective: The Use of Brewers' Spent Grain |
| Year | 2023 |
| Published | Foods, 12.0, 4 |
| Abstract | Brewers' spent grain (BSG) is the main by-product of the brewing industry, corresponding to similar to 85% of its solid residues. The attention of food technologists towards BSG is due to its content in nutraceutical compounds and its suitability to be dried, ground, and used for bakery products. This work was aimed to investigate the use of BSG as a functional ingredient in bread-making. BSGs were characterised for formulation (three mixtures of malted barley and unmalted durum (Da), soft (Ri), or emmer (Em) wheats) and origin (two cereal cultivation places). The breads enriched with two different percentages of each BSG flour and gluten were analysed to evaluate the effects of replacements on their overall quality and functional characteristics. Principal Component Analysis homogeneously grouped BSGs by type and origin and breads into three sets: the control bread, with high values of crumb development, a specific volume, a minimum and maximum height, and cohesiveness; Em breads, with high values of IDF, TPC, crispiness, porosity, fibrousness, and wheat smell; and the group of Ri and Da breads, which have high values of overall smell intensity, toasty smell, pore size, crust thickness, overall quality, a darker crumb colour, and intermediate TPC. Based on these results, Em breads had the highest concentrations of nutraceuticals but the lowest overall quality. Ri and Da breads were the best choice (intermediate phenolic and fibre contents and overall quality comparable to that of control bread). Practical applications: the transformation of breweries into biorefineries capable of turning BSG into high-value, low-perishable ingredients; the extensive use of BSGs to increase the production of food commodities; and the study of food formulations marketable with health claims. |
| https://www.mdpi.com/2304-8158/12/4/834/pdf?version=1677147910 |
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