Effect of Agaricus bisporus polysaccharide flour and inulin on the antioxidant and structural properties of gluten-free breads

Autor: Abdellatief A. Sulieman, Wei Peng, Hui-Ming Zhou, Mohammed Obadi, Hayat A. Hassan, Mohamed Ismael Ahmed, Ke-Xue Zhu
Rok vydání: 2019
Předmět:
Zdroj: Journal of Food Measurement and Characterization. 13:1884-1897
ISSN: 2193-4134
2193-4126
DOI: 10.1007/s11694-019-00107-6
Popis: Enrichment of gluten-free bread (GFB) with mushroom polysaccharide and prebiotic is necessary to enhance its organoleptic and health attributes. This work investigated the enrichment effect of the GFB with Agaricus bisporus polysaccharide (ABP) flour and inulin. Volatile compounds, as well as the antioxidant and structural properties of the fortified GFB were evaluated. Sweet potato-glutinous rice flour was fortified with ABP flour and the same with inulin at different levels (3, 6 and 9%), besides a constant percentage of xanthan gum (0.5%) was added to all the blends. Addition of ABP flour resulted in higher levels of volatile compounds compared to inulin addition and the control. ABP flour formulation (F3) had the highest total phenolic content (19.05 mg GAE/g), reducing power (5.31 mg/mL, EC50 value), DPPH (6.85 mg/mL, EC50 value), ABTS (8.86 mg/mL, EC50 value) radical-scavenging activities, and β-carotene bleaching (13.22 mg/mL, EC50 value). Conversely, the control and inulin formulation (F1) showed the lowest levels of these activities. The micrographs of the ABP flour formulations showed polyhedral, aggregated, and some spherical granules, whereas inulin formulations revealed spherical granules bound together with deformed granules. FTIR spectroscopy confirmed the presence of the amide I band and both α- and β-glycosidic linkages. The current findings exhibited that ABP flour and inulin had good attributes to improve the antioxidant activity of GFB and modify its structural characteristics.
Databáze: OpenAIRE
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