Journal
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
Volume 30, Issue 2, Pages 278-282Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jksus.2017.12.003
Keywords
Bread; Green coffee beans; TPC; Antioxidant activity; Sensory evaluation
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The present study investigated the benefits of adding different concentrations of grounded green coffee beans (GCB) powder (3%, 5% and 7%) to wheat flour dough prior to baking at 220 degrees C for 30 min compared to control (0% of GCB) and commercially available bread. Each sample was analyzed for total phenolic content (TPC), antioxidant activates (DPPH radical scavenging activity (IC50) and ferrous ion chelating (FIC) ability) and organoleptic properties. The highest TPC was observed in 7% GCB bread (1.61 +/- 0.06 mg GAE/g) which also recorded the highest DPPH (2.80 +/- 0.06 mg/ml; IC50) and FIC (0.49 +/- 0.01 mg EDTA/g). GCB bread (3%) showed the highest organoleptic scores among the GCB bread. In conclusion, GCB may be used in formulating functional bread which impacts high antioxidant content. (C) 2017 The Authors. Production and hosting by Elsevier B. V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license.
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