基于粉的草的热老化处理:温度时间对结构和功能性能影响的作用
Chuanjin Xia1, Jinyu Zhang2, Li Guo1
1Shandong Key Laboratory of Healthy Food Resources Exploration and Creation, State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, No. 3501, Daxue Rd., Changqing District, Jinan, Shandong Province, China.
Food chemistry
|January 14, 2026
概括
热老化会影响以粉为基础的草特性. 最佳条件改善了结构,降低了溶解率,提高了它们对工业生产的实际价值.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 食品科学 食品科学 食品科学
背景情况:
- 基于粉的吸管面临退化,限制了它们的使用.
- 了解热老化效应对于提高草性能至关重要.
研究的目的:
- 研究热老化对粉草结构和特性的影响.
- 优化条件,以提高粉的性能和工业可行性.
主要方法:
- 双螺丝挤出用于草制备.
- 在各种温度和持续时间下进行热老化处理.
- 用于结构分析的X射线衍射 (XRD).
- 在水中的溶解率测量.
主要成果:
- 90°C4小时最大限度的短程订单;30°C7天最大限度的双螺旋结构.
- 30°C的热老化促进了形晶体的形成.
- 由于结构变化,老化后相对结晶性下降.
- 在90°C老化32小时,在70°C时,溶解率降低了5.16%.
结论:
- 热老化显著改变了粉草的结构和特性.
- 特定的老化条件可以增强结构秩序并减少溶解.
- 调查结果支持提高粉草的性能和工业生产.
相关概念视频
Physical Methods for Controlling Microbial Growth: Temperature
952
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
952
Responses to Heat and Cold Stress
14.7K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.7K
Thermal Strain
2.8K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.8K


