3 years ago

Effects on the quality and health-enhancing properties of industrial onion waste powder on bread

Tsvetko Prokopov, Valentina Chonova, Anton Slavov, Tzvetelin Dessev, Nikolay Dimitrov, Nadezhda Petkova

Abstract

Industrial onion waste powder (IOWP) was used as an additive in wheat flour at different levels: 0, 1, 2, 3, 4 and 5%. The effect of onion waste addition on the mixing properties of the dough and quality of bread was investigated. The mixing properties of the dough were determined by farinograph. The bread were characterized and evaluated for crumb hardness, crumb porosity, sensory properties, dietary fiber, total phenolic content and total flavonoids. DPPH and FRAP assays were carried out to measure antioxidant activity in vitro. The results indicated that IOWP could be used as a potential health-enhancing functional ingredient up to 3% level to produce bread enriched with dietary fiber, total phenolic compounds and total flavonoids, and characterized by high antioxidant activity and acceptable quality.

Publisher URL: https://link.springer.com/article/10.1007/s13197-018-3448-8

DOI: 10.1007/s13197-018-3448-8

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