Influence of Sprouting Duration on the Nutrient, Functional, and Phytochemical properties of Tiger nut flour and Bread

Authors

  • Nazir Kizzie-Hayford Department of Biochemistry, School of Biological Science, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast,
  • Joshua Akanson Department of Agricultural Engineering, School of Agriculture, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast
  • Esi Dankwa Department of Agricultural Engineering, School of Agriculture, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast
  • Jerry Ampofo-Asiama Department of Biochemistry, School of Biological Science, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast

Abstract

The influence of sprouting on tiger nut’s (TN) nutritional, functional, and phytochemical quality was examined, and the flour used for bread making to evaluate the feasibility as a functional ingredient. TN was sprouted and sampled at 3 days intervals for 12 days, dried and milled into flour and analyzed. Subsequently, 25% of wheat flour (WF) was replaced with the 9 days-sprouted TN flour for bread. Sprouting for 9 days increased the protein content from 9.19 ± 0.04 to 9.79 ± 0.15 g/100 g dry matter (DM), fiber from 6.75 ± 0.16 to 9.27 ± 0.44 g/100 g DM, and ash from 2.34 ± 0.10 to 2.70 ± 0.06 g/100 g DM but decreased fat content from 26.10 ± 0.18 to 23.18 ± 0.43 g/100 g DM and soluble sugar from 33.13 ± 1.25 to 23.75 ± 1.44 ◦Bx. We observed increases in the polyphenols (94.16 ± 6.43–214.23 ± 6.98 mg GAE/100 g) and ascorbic acid (26.66 ± 0.17–65.13 ± 0.19 mg AE/100 g) and decreases in the cyanogenic glycosides (273.79 ± 0.37–231.54 ± 3.53 mg/100 g) and oxalates (19.04 ± 1.14–5.65 ± 0.93 mg/100 g) contents. Sprouting decreased the particle size and increased the water retention and swelling power of TN flour. WF bread was described as stretchy, sweet, and creamy, whereas sprouted TN bread was brown, nutty, and wheat-like. Consumer acceptance for the sprouted TN bread was comparable to WF bread, showing the possible application in bread making

Published

03-10-2023

How to Cite

Kizzie-Hayford, N., Akanson, J., Dankwa, E., & Ampofo-Asiama, J. (2023). Influence of Sprouting Duration on the Nutrient, Functional, and Phytochemical properties of Tiger nut flour and Bread. 3rd International Congress of the Turkish Journal of Agriculture - Food Science and Technology, Malatya, Türkiye, 259–259. from http://turjaf.org/index.php/TURSTEP/article/view/149