以乳制品蛋白质为基础的聚合物作为添加剂,富含酸桃多和风味化合物
Mirela Kopjar1, Ivana Buljeta1, Ina Ćorković1
1Faculty of Food Technology, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia.
Foods (Basel, Switzerland)
|June 10, 2023
概括
这项研究探讨了酸果汁和乳制品蛋白质聚合物,发现较高的蛋白质含量降低了多醇吸附和抗氧化活性. 蛋白质矩阵还改变了味道特征和蛋白质结构.
科学领域:
- 食品科学 食品科学 食品科学
- 营养生物化学 营养生物化学
背景情况:
- 对具有健康益处的功能性食品的需求日益增加.
- 需要了解食物矩阵和生物活性化合物之间的相互作用.
研究的目的:
- 为了制备酸的桃汁-乳制品蛋白质聚合物.
- 研究不同蛋白质矩阵度 (2%和6%) 对多和风味化合物吸附的影响.
- 分析对抗氧化剂活性和风味概况的影响.
主要方法:
- 使用酸果汁和乳制品蛋白质制备聚合物.
- 通过高性能液态染色学 (HPLC) 进行分析.
- 光谱光度法,气相色谱法 (GC) 和里埃变换红外光谱法 (FTIR).
主要成果:
- 蛋白质矩阵度的增加导致了聚醇吸附率的降低和抗氧化活性的降低.
- 蛋白质矩阵显著影响了风味化合物吸附,与酸果汁相比,改变了聚合物的风味特征.
- 和风味化合物的吸附引起了蛋白质结构的变化,FTIR证实了这一点.
结论:
- 基于乳制品蛋白质的聚合物可以用酸桃成分配制.
- 蛋白质矩阵度是影响多和风味吸附的关键因素.
- 这些聚合物显示出作为功能性食品添加剂的潜力,其富含酸桃生物活性.
相关概念视频
Additives and Fillers in Concrete
116
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
116
Protein Complex Assembly
2.1K
2.1K
Protein Digestion
104.3K
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.
104.3K
Protein Complexes with Interchangeable Parts
1.9K
1.9K
EDTA: Auxiliary Complexing Reagents
631
EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
631
Gustation
48.2K
Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
48.2K


