DND358 (低胆固醇大豆) 蛋白质分离物的物理化学和功能性质
Tingting Luo1, Yuanhang Fan1, Mengmeng Fan1
1Soybean Research Institute, Northeast Agricultural University, Harbin 150030, China.
Foods (Basel, Switzerland)
|October 26, 2024
概括
研究人员优化了大豆蛋白分离物 (SPI) 制备,发现DND358-SPI表现出优越的功能性质. 这种增强的SPI显示出降胆固醇食品的潜力.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生化学
- 蛋白质化学 蛋白质化学
背景情况:
- 大豆蛋白分离物 (SPI) 因其多样化的应用而受到广泛研究.
- 了解最佳准备条件是最大限度地提高SPI功能的关键.
研究的目的:
- 为了确定DND358大豆蛋白分离物 (DND358-SPI) 的最佳制备条件.
- 评估DND358-SPI的物理化学和功能性质.
- 探索DND358-SPI的潜在食品行业应用.
主要方法:
- 优化了提取参数,包括pH值 (9.5),温度 (55°C),持续时间 (80分钟) 和材料与液体比率 (1:20 w/v).
- 评估的关键功能性质:水容量 (WHC) 和油容量 (OBC).
- 评估的纹理特性:硬度,粘性,性和弹性.
主要成果:
- 最佳的DND358-SPI提取在pH9.5,55°C80分钟以1:20的比率实现.
- 与其他品种相比,DND358-SPI表现出明显更高的WHC (4.73%) 和OBC (11.04%).
- 增强的纹理属性:硬度 (159.27g),粘性 (186.07g),可性 (6.78mj) 和弹性 (1.88).
结论:
- 可以优化DND358-SPI制备,以获得卓越的功能和纹理特性.
- DND358-SPI的独特特性表明它在开发降胆固醇食品中的有用性.
- 对DND358-SPI在功能性食品中的应用进行进一步研究是有必要的.
相关概念视频
Intrinsically Disordered Proteins
17.7K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
17.7K
Detergent Purification of Membrane Proteins
5.1K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
5.1K
Protein Folding
7.8K
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
7.8K
Protein Denaturation
4.0K
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...
4.0K


