Swallowing Characteristics of Bolus of Agar Gels on the Swallowing Process

对于老年人和年轻人的受试者，研究人员检查了琼脂凝胶团中所含的唾液以及琼脂凝胶团的物理性质对吞咽特性的影响。考察了咀嚼琼脂凝胶的颗粒大小和琼脂胶丸中的唾液量。同时测定了一定时期内老年人和青壮年的唾液量和表观粘度。将黄原胶制成的模型唾液按3种不同的量添加到模型粉碎的琼脂凝胶中，制成3种模型咀嚼琼脂凝胶。同样，将模型唾液调节到三种不同的粘度水平，分别加入模型粉碎的琼脂凝胶中，制备模型咀嚼琼脂凝胶。研究了不同型号咀嚼琼脂果冻的质构特性和吞咽特性。咀嚼琼脂凝胶的颗粒大小在老年人和青年之间没有差异。琼脂凝胶团的唾液量为15-35%，青年高于老年人。模型咀嚼琼脂凝胶的硬度和粘附性随模型唾液量的增加而降低。模型咀嚼琼脂凝胶的硬度随模型唾液粘度的增加而降低。从吞咽特性来看，含35%模型唾液的模型咀嚼琼脂凝胶老年人容易吞咽。另一方面，含有25%模型唾液的模型咀嚼琼脂凝胶容易被青少年吞咽。通过添加三种不同粘度的模型唾液调整咀嚼模型琼脂凝胶的吞咽特性，老年人和青年之间没有显着差异。

For test subjects both the aged and youth, examination was made on what effects the saliva contained in the bolus of agar jelly, as well as the physical properties of the bolus, had on the swallowing characteristics. The particle size of the masticated agar jelly, and the amount of saliva contained in the bolus of agarjelly, were investigated. At the same time, the amount and apparent viscosity ofsaliva sampled from the aged and youth during a fixed period were measured. The model saliva, which was prepared With xanthan gum, was added to the model crushed agar jelly in three different quantity levels so that three types of the modelmasticated agar jelly could be prepared. Similarly, model saliva adjusted to three different levels of viscosity were added to the model crushed agar jelly to prepare the model masticated agar jelly. The texture properties and swallowing characteristics of each model masticated agar jelly were investigated. No differences between the aged and youth were recognized in the particle size of the masticated agar jelly. The amount of saliva contained in the bolus of agar jelly was 15-35%, and was higher for the youth than for the aged. The hardness and adhessiveness of the model masticated agar jelly decreased with increasing amount of model saliva. The hardness of the model masticated agar jelly decreased with increasing viscosity of the model saliva. As the results of swallowing characteristics, the model masticated agar jelly containing 35% model saliva was easy to swallow for the aged. On the other hand, the model masticated agar jelly containing 25% model saliva was easy to swallow for the youth. No significant difference between the aged and youth was recognized in the swallowing characteristics of the masticated model agar jelly adjusted by adding model saliva with three different levels of viscosity.