Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein

Bibliographic Details
Title: Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein
Authors: Simeng Wang, Xianmeng Xu, Shunmin Wang, Junzhen Wang, Wenping Peng
Source: Foods, Vol 11, Iss 10, p 1373 (2022)
Publisher Information: MDPI AG, 2022.
Publication Year: 2022
Collection: LCC:Chemical technology
Subject Terms: microwave pretreatment, germination, Tartary buckwheat protein, functional properties, antioxidant activities, Chemical technology, TP1-1185
More Details: Tartary buckwheat protein (TBP) has promise as a potential source of novel natural nutrient plant protein ingredients. The modulating effects of microwave pretreatment at varying powers and times on the structure, functional properties, and antioxidant activities of germinated TBP were investigated. Compared with native germinated TBP, after microwave pretreatment, the content of free sulfhydryl groups in the germinated TBP increased, and the secondary structure changes showed a significant decrease in α-helix and an increase in random coil contents, and the intensity of the ultraviolet absorption peak increased (p < 0.05). In addition, microwave pretreatment significantly improved the solubility (24.37%), water-holding capacity (38.95%), emulsifying activity index (17.21%), emulsifying stability index (11.22%), foaming capacity (71.43%), and foaming stability (33.60%) of germinated TBP (p < 0.05), and the in vitro protein digestibility (5.56%) and antioxidant activities (DPPH (32.35%), ABTS (41.95%), and FRAP (41.46%)) of germinated TBP have also been improved. Among different treatment levels, a microwave level of 300 W/50 s gave the best results for the studied parameters. Specifically, microwave pretreatment could be a promising approach for modulating other germinated plant protein resources, as well as expanding the application of TBP.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2304-8158
Relation: https://www.mdpi.com/2304-8158/11/10/1373; https://doaj.org/toc/2304-8158
DOI: 10.3390/foods11101373
Access URL: https://doaj.org/article/0876d2d107fa4f20a1328231d3ad0aee
Accession Number: edsdoj.0876d2d107fa4f20a1328231d3ad0aee
Database: Directory of Open Access Journals
More Details
ISSN:23048158
DOI:10.3390/foods11101373
Published in:Foods
Language:English