热处理调节粉和非粉大分子在栗子中的消化能力:结构重构和分子相互作用
Xueying Gao1, Junwei Yuan2, Bin Du3
1Chestnut Research Center of Hebei Normal University of Science and Technology, Qinhuangdao 066004, Hebei, China; College of Chemical Engineering, Hebei Normal University of Science & Technology, Qinhuangdao 066004, Hebei, China.
International journal of biological macromolecules
|June 20, 2025
概括
煮熟栗子会显著影响它们的葡萄糖指数 (GI). 与湿热方法 (沸,蒸) 相比,和炸等干热方法的预期GI (eGI) 较低,为低GI栗子产品开发提供了洞察力.
科学领域:
- 食品科学与技术 食品科学与技术
- 营养科学 营养科学
- 农业加工 农业加工
背景情况:
- 栗子加工主要使用热方法,由于高血糖指数 (GI) 造成营养悖论.
- 高GI食物与低GI饮食建议相冲突,需要研究加工对栗子GI的影响.
- 了解煮熟的栗子中胃肠道变异背后的机制对于产品开发至关重要.
研究的目的:
- 系统地评估使用四种常规方法加工的栗子的预期血糖指数 (eGI).
- 阐明了各种方法之间对eGI观察到的差异负责的基本机制.
- 为优化栗子加工提供见解,以达到较低的GI值.
主要方法:
- 评估四种传统的方法:沸,蒸,和炸.
- 栗子结构分析,纹理分析 (TPA) 和1H低场核磁共振 (LF-NMR) 的分析.
- 物理和结构性质与确定的eGI值的相关性.
主要成果:
- 湿热加工的栗子 (煮沸: 81.40,蒸: 86.67) 呈现出比干热加工的栗子 (烤: 69.47,炸: 69.85) 更高的eGI.
- 烤和炸的栗子显示出优越的纹理完整性和受限制的粉可获得性.
- 通过固定 (A21) 和自由 (A22) 水含量的变化表明的水相过渡被确定为栗子GI的关键决定因素.
结论:
- 过程中的水相过渡显著影响栗子的葡萄糖指数.
- 干热加工方法保持了质地完整性,降低了粉的可访问性,从而降低了eGI.
- 基于水相转换的有针对性的加工优化可以促进低GI栗子产品的开发.
相关概念视频
Carbohydrate Digestion
117.9K
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
117.9K
Mechanical and Chemical Digestion in the Small Intestine
1.5K
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
1.5K
Introduction to Carbohydrates
15.5K
Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
15.5K
Protein Digestion
106.0K
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.
106.0K


