L-氨酸可以缓解子蛋白质的热聚合,这种热聚合是由热处理引起的
Liqiang Wang1, Youbang Zhang1, Run Li1
1School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China.
Scientific reports
|August 16, 2023
概括
通过防止凝的形成,L-lysine (Lys) 抑制了子蛋白 (CP) 的热聚合. 这种氨基酸降低了CP的溶解度和颗粒大小,对热引起的变化产生保护作用.
科学领域:
- 食品科学 食品科学 食品科学
- 蛋白质化学 蛋白质化学
- 生物化学 生物化学
背景情况:
- 子蛋白 (CP) 经历热聚合,影响其功能性质.
- 了解抑制蛋白质聚合的因素对于食品加工至关重要.
研究的目的:
- 研究L-lysine (Lys) 对子蛋白 (CP) 的热聚合的抑制作用.
主要方法:
- 在不同温度下监测CP溶解度,光,颗粒大小和度的变化.
- 评估L-lysine对CP凝形成的影响.
主要成果:
- 高温降低了CP溶解度,并在中性pH下促进凝形成.
- 添加L-氨酸降低了CP光和粒子大小,同时增加了度.
- L-氨酸对热诱导的CP凝具有抑制作用.
结论:
- 氨酸有效地抑制了子蛋白的热聚合.
- 抑制机制涉及lys与cp相互作用,以提供硬体阻碍并增强静电排斥.
更多相关视频
相关概念视频
Protein Denaturation
4.3K
The function of proteins depends on their native three-dimensional structure, which is dictated by the amino acid sequence of the specific protein. Folding of the polypeptide chain takes place under specific conditions that energetically favor the folded conformation. In contrast, protein denaturation occurs spontaneously under unfavorable conditions that disrupt the integrity of the folded conformation. Thus, the chemical and physical environment of a protein, such as significant changes in pH...
4.3K
Covalently Linked Protein Regulators
6.9K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.9K
Lysosomal Hydrolases
3.8K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
3.8K


