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Effect of various hydrocolloids on the physical and fermentation properties of dough

Jinxin Li, Yunping Zhu, Madhav P. Yadav, Jinlong Li
Food chemistry 2019 v.271 pp. 165-173
chemical bonding, dough, dough quality, fermentation, gluten, guar gum, hydrocolloids, konjac mannan, locust bean gum, pasting properties, pectins, viscosity
Sixteen hydrocolloids (12 carbohydrate-origin and 4 protein-origin hydrocolloids) at several concentrations were added to dough and their rheological, pasting and fermentation properties were studied. We found that 0.2–1% guar gum (GG) and locust bean gum (LBG) resulted in more strengthened doughs. But 0.2–1% pectin and konjac glucomannan (KGM) yielded weaker dough. The chemical interactions study suggested that pectin and KGM induced highest content of chemical bonds. In the fermentation studies, it was found that pectin, GG and agaric gum (AG) had positive effects, resulting in higher stability of dough pore space and gas retention. All protein hydrocolloids exhibited a negative effect on dough quality. Overall, polysaccharide based hydrocolloids with linear chain and higher viscosity have a remarkable effect on the enhancing gluten network. The interaction between hydrocolloids and gluten proteins was also crucial for dough properties, as exceptionally strong interactions caused disaggregation and instability of gluten network.