通过冷等离子处理增强奎诺亚蛋白分离物的技术功能性质:关于pH影响的综合研究
Leili Yousefi, Akram Arianfar1, Elham Mahdian2
1Department of Food Science and Technology , Islamic Azad University , Qu.C, Quchan, Iran. ak.arianfar@iau.ac.ir.
Scientific reports
|January 28, 2026
概括
真空冷血处理显著提高了菜蛋白分离的功能,改善了更广泛的食品应用的可溶性,乳化和发泡性质.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生化学
- 材料科学 材料科学 材料科学
背景情况:
- 昆蛋白分离物 (QPI) 具有高营养价值,但由于溶解性和功能性质差,其食品应用有限.
- 植物性蛋白质越来越受欢迎,因此需要改进其技术功能特性的方法.
- 非热加工提供了蛋白质修饰的潜力,而不会损害营养完整性.
研究的目的:
- 研究真空冷血 (VCP) 治疗对华蛋白分离物 (QPI) 的功能性质的影响.
- 评估VCP在一系列pH条件 (2.0-10.0) 的影响.
- 探索VCP作为一种改善食品应用QPI的方法的潜力.
主要方法:
- 昆蛋白分离物 (QPI) 在各种pH值下接受了真空冷血 (VCP) 处理.
- 测量了溶解性,分散性,水容量 (WHC),油容量 (OHC),乳化活性指数 (EAI),乳液稳定性指数 (ESI),泡容量 (FC) 和泡稳定性 (FS).
- 粒子大小分析,泽塔潜力和里埃变换红外光谱法 (FTIR) 用于分析结构变化.
主要成果:
- 在性pH下,VCP治疗显著改善了QPI溶解度 (高达72%) 和分散性 (高达54%).
- 观察到增强的技术功能性质,包括增加的WHC (2.8-5.9%) 和OHC (2.3-3.2%) 在pH10.0.
- 在酸性pH下改善了EAI (9.24m2/g) 和ESI (71.6分钟),同时增加了FC (78.54%) 和FS (89.65%).
- VCP降低了粒子大小,增加了表面积和水友性,并增强了静电排斥力,FTIR分析证实表明增加了结合.
结论:
- VCP治疗是一种有效的非热方法,可以增强华蛋白分离物的功能.
- 修改后的QPI表现出更好的溶解性,乳化和发泡特性,使其适用于各种食品应用.
- VCP提供了一种有前途的方法来增加食品工业中植物性蛋白质的利用率.
相关概念视频
Responses to Heat and Cold Stress
14.8K
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.
14.8K
Properties of Continuous Functions
180
Continuous functions exhibit smooth, uninterrupted behavior, and combining them through standard operations retains this continuity. If f and g are continuous at a point a, then the functions f+g, f-g, cf (where c is a constant), fg, and fg (provided g(a)a) are also continuous at a. This allows the construction of complex functions from simpler continuous parts without losing smoothness.Polynomials, which are expressions formed by sums of powers of x with constant coefficients, are continuous...
180
Structural Protein Function
29.9K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
29.9K
Structural Protein Function
3.3K
3.3K
Mechanical Protein Functions
5.6K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.6K
Drug Distribution: Plasma Protein Binding
8.8K
Drugs predominantly attach to plasma proteins, with only a small percentage remaining unbound. The unbound portion can be calculated as one minus the bound fraction. Acidic drugs form large, inactive complexes by reversibly binding to plasma albumin, which prevents them from diffusing across biological barriers. These drug-protein complexes act as reservoirs for the drugs. As the concentration of unbound drugs decreases, these complexes quickly dissociate to release the free drug, maintaining...
8.8K


