相关实验视频

Updated: Jan 7, 2026

Author Spotlight: Enhancing Flavor Interaction of Food Using Matcha Microcapsules

Author Spotlight: Enhancing Flavor Interaction of Food Using Matcha Microcapsules

Published on: July 26, 2024

结构依赖的多的交互调节:在芬顿氧化过程中增强肌纤维素-大豆蛋白质复合物的凝和氧化稳定性

Zhifeng Tan¹, Xiaoqing Yang¹, Yidan Wang¹

¹SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.

|December 24, 2025

概括

像taxifolin和EGCG这样的多醇有效地抑制了食品系统中的蛋白质氧化. 它们稳定蛋白质结构,改善凝性质和颜色,提供对食品保存机制的见解.

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
生物化学生化学

背景情况:

蛋白质氧化是食品系统的一个主要问题,影响质量和营养价值.
多因其抗氧化特性而闻名,但它们在蛋白质系统中的特定作用需要进一步阐明.

研究的目的:

在调节氧化肌纤维蛋白 (MP) 和大豆蛋白分离物 (SPI) 复合系统中研究酸 (GA),塔克西福林 (TF) 和表甲基酸 (EGCG) 的结构功能关系.
了解蛋白质氧化受多介导抑制的分子机制及其对凝性质的影响.

主要方法:

MP和SPI复合系统的芬顿氧化.
分析蛋白质构造变化和氧化标志物 (例如碳基含量).
对凝性质的评估 (例如,纹理,颜色稳定性).
分子动力学模拟以阐明相互作用机制.

主要成果:

TF和EGCG在抑制蛋白质氧化方面比GA更有效,降低碳酸含量分别为3.4倍和3.0倍.
聚醇诱导蛋白质构造变化和增强凝特性,包括颜色稳定性,特别是通过TF.
分子动力学表明,TF通过非共价相互作用形成稳定的界面桥梁,稳定MP-SPI复合体.

结论:

聚,特别是TF和EGCG,在抑制蛋白质氧化和改善基于蛋白质的食品系统的功能性质方面发挥着至关重要的作用.
TF独特的二黄结构有助于其在保持凝颜色稳定性方面的卓越有效性.
这项研究强调了多在竞争性结合和界面桥接中的双重作用,提供了对它们对氧化驱动蛋白质聚合的保护作用的分子理解.

关键词:

复杂蛋白质凝是一种复杂蛋白质凝.凝的特性凝的特性肌纤维细胞蛋白质是什么氧化过程中的氧化.聚醇是一种多醇.这是一种大豆蛋白质分离物.

更多相关视频

Characterizing Cellular Proteins with In-cell Fast Photochemical Oxidation of Proteins

Characterizing Cellular Proteins with In-cell Fast Photochemical Oxidation of Proteins

Published on: March 11, 2020

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Published on: June 21, 2021

相关概念视频

Protein Modifications in the RER

Protein Modifications in the RER

Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...

Radical Autoxidation

Radical Autoxidation

The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...

Globular and Fibrous Proteins

Globular and Fibrous Proteins

Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities.
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...