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This study explores the effect of date palm gum (DPG) as a novel functional ingredient for whole wheat bread (WWB) to enhance its physicochemical and textural properties. Herein, samples containing varying concentrations of DPG (0–3% w/w) were prepared and analyzed, out of which D2 (containing 1% w/w DPG) exhibited superior qualities. Microscopic studies showed that D2 exhibited improved crumb aeration, suggesting better fermentation than the others. Moisture analysis revealed that D2 retained a higher quantum of moisture (50.06 ± 0.41%). Further, the colorimetric study showed that increasing DPG concentration led to a corresponding decrease in L* values (46.69 ± 0.13) due to the combined effect of Maillard browning and the inherent color of DPG. Analysis of FTIR spectra confirmed stable interactions of DPG and starch–protein complexes in D2. Stress relaxation exhibited that D2 had the highest initial (F0; 162.95 ± 1.70 g) and residual (F60; 95.81 ± 3.94 g) forces, indicating that it maintained its structure under stress. In gist, DPG exhibited strong potential as a natural hydrocolloid that could be explored to develop functional bakery products.
Jumble et al. (Wed,) studied this question.