Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-000, Viçosa, MG, Brazil.
Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa (UFV), Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-000, Viçosa, MG, Brazil.
Carbohydr Polym. 2021 Mar 1;255:117526. doi: 10.1016/j.carbpol.2020.117526. Epub 2020 Dec 16.
Biopolymers mixtures appear as a strategy to improve sensorial/technological characteristics of gel-like products. Thus, self-sustaining starch (S100/C0) hydrogels were prepared with a partial replacement of the gelling agent by 5.0 % (S95/C5), 7.5 % (S92.5/C7.5), or 10.0 % chitosan (S90/C10), and containing yellow sunset (INS 110). Major visual changes or significant differences on Lab* parameters were not observed for starch/chitosan hydrogels. Creep-recovery data was modeled using the simulated annealing algorithm, and relative recovery results showed an increase for S95/C5 (82.6 %), when compared to S100/C0 (72.9 %). After 312 h, chitosan strongly reduced the INS 110 release from hydrogels to an ethanolic solution (3.1∙10 and 4.1∙10 g/100 mL for S95/C5 and S100/C0, respectively) or to a sucrose solution (1.1∙10 and 6.5∙10 g/100 mL for S95/C5 and S100/C0, respectively). Such results highlighted that chitosan not only presented a techno-functionality on starch hydrogels by improving their elasticity but also by hindering the release of yellow sunset.
生物聚合物混合物作为一种策略，可以提高凝胶状产品的感官/技术特性。因此，用 5.0%（S95/C5）、7.5%（S92.5/C7.5）或 10.0%壳聚糖（S90/C10）部分替代胶凝剂制备了自支撑淀粉（S100/C0）水凝胶，并含有日落黄（INS110）。淀粉/壳聚糖水凝胶的 Lab*参数没有观察到明显的视觉变化或显著差异。使用模拟退火算法对蠕变恢复数据进行建模，相对恢复结果表明，与 S100/C0（72.9%）相比，S95/C5（82.6%）的恢复率有所增加。在 312 小时后，壳聚糖强烈减少了 INS110 从水凝胶到乙醇溶液（S95/C5 和 S100/C0 分别为 3.1×10 和 4.1×10 g/100 mL）或蔗糖溶液（S95/C5 和 S100/C0 分别为 1.1×10 和 6.5×10 g/100 mL）中的释放。这些结果表明，壳聚糖不仅通过提高淀粉水凝胶的弹性赋予其技术功能性，而且还阻碍了日落黄的释放。
