为患有吞困难的老年人开发和描述富含蛋白质的混合蛋白质软食品
Yuxin Qin1, Christopher Pillidge1, Bernie Harrison2
1School of Science, RMIT University, Melbourne, VIC 3083, Australia.
Food chemistry
|September 7, 2025
概括
这项研究开发了富含蛋白质的奶油,用于患有食障碍的老年人,使用大豆蛋白分离物 (SPI) 和牛奶蛋白缩物 (MPC). 添加转胺酶 (TG) 改善了质地和吞性,符合安全饮食的IDDSI标准.
科学领域:
- 食品科学 食品科学 食品科学
- 营养科学 营养科学
- 生物材料是一种生物材料.
背景情况:
- 消化不良会影响老年人,需要修改食物质感以确保安全吞.
- 富含蛋白质的食物对老年人营养至关重要,但质地修改可能会影响口感和安全性.
研究的目的:
- 为患有食障碍的老年人开发富含蛋白质的奶酪.
- 为了评估混合大豆蛋白分离物 (SPI) 和牛奶蛋白缩物 (MPC) 具有或没有转谷氨酸酶 (TG) 的对乳酪属性的影响.
- 为了达到与现有的仅含牛奶蛋白缩物 (MPC) 的奶油可比拟的质地,质和吞性.
主要方法:
- 配方组合的SPI和MPC在1:1和1:2的比例,有和没有0.2%的TG.
- 与仅MPC和仅SPI基准对比评估的托管.
- 评估了质地,风质,凝强度,水能力和稳定性.
- 利用原子力显微镜 (AFM) 来分析纳米级蛋白质相互作用.
主要成果:
- 没有TG的混合蛋白质奶油由于分子不相容性而降低了粘度,硬度,性,性和稳定性.
- 在SPI-MPC混合物中,添加TG显著提高了凝强度和保持水分的能力.
- 具有0.2%TG的SPI-MPC (1:2) 奶油表现出最佳的质地,并符合第6级国际淋病饮食标准化倡议 (IDDSI) 的标准.
- AFM指出,纳米级蛋白质-蛋白质相互作用对于凝网络稳定至关重要.
结论:
- 将SPI和MPC与TG混合是一种可行的策略,用于制造适合食障碍的高蛋白乳酪.
- TG在克服分子不相容性和增强混合蛋白凝的结构完整性方面发挥着至关重要的作用.
- 这些发现支持开发改进的软食品,以改善老年人的营养和吞安全.
相关概念视频
Protein Digestion
110.6K
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
110.6K
Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding
858
Enteral nutrition encompasses various methods of delivering nutrition directly to the gastrointestinal (GI) tract, bypassing traditional oral intake. It is particularly beneficial for patients who cannot eat by mouth but have a functioning digestive system. Key methods include nasointestinal feeding, gastrostomy, and jejunostomy, each suited to different clinical scenarios based on the patient's needs and condition.
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube...
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube...
858
Enteral Nutrition I: Orogastric and Nasogastric Feeding
1.3K
Enteral nutrition delivers nutrients directly to the stomach or small intestine through a tube. This method is appropriate for patients who cannot eat but still have a functioning digestive system. It is also beneficial for individuals with swallowing difficulties, anorexia, malabsorption, or those who have undergone gastrointestinal (GI) surgery.
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...
1.3K
Pharmacodynamics in Geriatric Patients: Effects of Age
190
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
190
Drug Dosing: Geriatric Patients
228
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
228
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution
234
Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
234


