[关键词]
[摘要]
为探究D-阿洛酮糖对面团特性及面包品质的影响规律,以0%、4%、8%、12%、16%(wt.%)的D-阿洛酮糖替代部分蔗糖制备面团与面包,研究面团粉质特性、发酵特性、质构特性、微观结构、水分分布和面包感官品质的变化规律。结果表明:随D-阿洛酮糖添加量的增加,面团吸水率升高,形成时间逐渐缩短,弱化度逐渐增大,稳定时间呈现先升后降的趋势,16%的D-阿洛酮糖不利于面团的形成和稳定;适量添加D-阿洛酮糖(4%~8%)可通过增强面筋网络有效防止气体逸失,而高添加量(12%~16%)会抑制发酵并降低产气速率;面团硬度、胶着性、咀嚼性随D-阿洛酮糖的增加而增大,弹性降低,内聚性变化不显著,16%组面团硬度显著提高,弹性较差;D-阿洛酮糖使面团面筋网络结构更加连续且紧密,增强面团持水性。D-阿洛酮糖显著影响面包感官品质,8%的添加量改善了面包的烘焙色泽和烘烤风味,内部结构更细腻,16%组面包感官品质显著降低。该研究为D-阿洛酮糖在面包中的应用提供了理论基础。
[Key word]
[Abstract]
To investigate the effects of D-allulose on dough characteristics and bread quality, dough and bread samples were prepared by partially replacing sucrose with D-allulose at concentrations of 0%, 4%, 8%, 12%, and 16% (wt.%). Variations in farinographic properties, fermentation behavior, textural attributes, microstructure, water distribution, and sensory quality of the bread were systematically examined. The results demonstrated that as the concentration of D-allulose increased, the water absorption capacity of the dough rose, the formation time shortened gradually, the weakening degree increased progressively, and the stability time exhibited a trend of initially increasing and subsequently decreasing. A D-allulose concentration of 16% was found to be detrimental to dough formation and stability. Moderate incorporation of D-allulose (4%~8%) effectively enhanced the gluten network, thereby preventing gas loss during fermentation. In contrast, high concentrations of D-allulose (12%~16%) inhibited fermentation activity and reduced gas production rates. The hardness, adhesiveness, and chewiness of the dough increased with higher D-allulose levels, while elasticity decreased. Cohesiveness remained relatively unchanged. Notably, the dough in the 16% group exhibited significantly greater hardness and poorer elasticity. D-allulose contributed to a more continuous and compact gluten network structure, improving the dough's water-holding capacity. Sensory evaluation revealed that an 8% D-allulose addition enhanced the baking color, flavor, and internal texture of the bread. Conversely, the sensory quality of bread in the 16% group was markedly diminished. This study provides valuable insights into the application of D-allulose in bread formulation.
[中图分类号]
[基金项目]
国家重点研发计划项目,中央引导地方项目,江淮杂粮产业工程技术研发创新基地项目