Radio frequency dielectric heating combined with ultrav iolet irradiation induces changes in structural, oxidative, and antioxidant properties of B-Lactoglobulin
Issue Date
3-2019
Abstract
The study investigated the impact of radio frequency dielectric heating (RF) alone or in combination with ultraviolet light (UVC) irradiation on structural, oxidative, and antioxidant properties of beta-lactoglobulin. All treatments decreased total sulfhydryl group (TSH), disulfide bonds (S-S), reducing power, fluorescence intensity, alpha-helix and beta-turn structures. Treatments increased random coils, free sulfhydryl group, surface hydrophobicity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-ethyl benzothiazoline-6-sulfonate (ABTS). Treatment with radio frequency dielectric heating (RF) alone (5 min) resulted in the highest S-S, and the lowest carbonyl contents and antioxidant activities. RF (5 min) + ultraviolet light (UVC) (25 min) generated the maximum random coils, carbonyl and ABTS, and likewise resulted in the minimum alpha-helix, beta-turn, TSH, and S-S.
Source or Periodical Title
Philippine Agricultural Scientist
ISSN
0031-7454
Volume
102
Issue
1
Page
67-74
Document Type
Article
College
College of Agriculture and Food Science (CAFS)
Physical Description
graphs; tables
Language
English
Subject
Antioxidants; Irradiation; Technology transfer
Recommended Citation
Wu, Yuwei; Zheng, Yuanrong; Wang, Danfeng; and Deng, Yun, "Radio frequency dielectric heating combined with ultrav iolet irradiation induces changes in structural, oxidative, and antioxidant properties of B-Lactoglobulin" (2019). Journal Article. 4411.
https://www.ukdr.uplb.edu.ph/journal-articles/4411
En – AGROVOC descriptors
BETA LACTOGLOBULIN; WHEY PROTEIN; ANTIOXIDANTS; IRRADIATION; ULTRAVIOLET IRRADIATION; THERMAL RADIATION; OXIDATION; TECHNOLOGY TRANSFER