Quantitative proteomics provides new insights into the mechanism of improving rehydration of egg white powder by ultrasonic pretreatment

Copyright © 2023 Elsevier B.V. All rights reserved..

Poor rehydration is one of the key factors affecting the functional properties of egg white powder (EWP). Reducing rehydrated precipitates is important for the processing and application of EWP. In this study, effects of ultrasonic pretreatment on the physicochemical and functional properties of EWP rehydration solutions were studied with the aim of revealing the mechanism of ultrasonic pretreatment to improve rehydration. Compared with freeze-dried EWP (FD) and spray-dried EWP (SD), the percentage of ultrasonic pretreated FD (UFD) and ultrasonic pretreated SD (USD) rehydrated precipitates decreased by 13.0 % and 5.6 %, respectively, after ultrasonic pretreatment (0.25 W/mL for 10 min); and the average particle sizes of UFD and USD solutions decreased by 22.5 % and 15.5 %, respectively. Fourier transform infrared spectroscopy showed that ultrasonic pretreatment caused higher β-sheet content in the protein secondary structure of UFD rehydrated precipitates (49.2 %). Quantitative proteomic analysis revealed a decrease in the abundance of major egg white proteins (ovalbumin, ovotransferrin, ovomucoid and ovomucin) in the rehydrated precipitates of UFD, except for lysozyme. It was also shown that lysozyme-centered aggregates were disrupted in the rehydrated precipitates of UFD. Our research suggests that ultrasonic pretreatment improves EWP rehydration by reducing the interactions between high abundance proteins as well as improving the solubility of high abundance proteins.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:253

Enthalten in:

International journal of biological macromolecules - 253(2023), Pt 8 vom: 31. Dez., Seite 127497

Sprache:

Englisch

Beteiligte Personen:

Wang, Xiaolin [VerfasserIn]
Hu, Gan [VerfasserIn]
Wang, Xuemei [VerfasserIn]
Ma, Lulu [VerfasserIn]
Li, Shugang [VerfasserIn]
Wang, Jinqiu [VerfasserIn]
Geng, Fang [VerfasserIn]

Links:

Volltext

Themen:

37281-36-0
EC 3.2.1.17
Egg white powder
Journal Article
Muramidase
Ovomucin
Powders
Rehydration
Ultrasonic

Anmerkungen:

Date Completed 24.11.2023

Date Revised 24.11.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2023.127497

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36351080X