Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein
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....
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/11/10/1373 |
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| author | Simeng Wang Xianmeng Xu Shunmin Wang Junzhen Wang Wenping Peng |
| author_facet | Simeng Wang Xianmeng Xu Shunmin Wang Junzhen Wang Wenping Peng |
| author_sort | Simeng Wang |
| collection | DOAJ |
| description | 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 (<i>p</i> < 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 (<i>p</i> < 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. |
| first_indexed | 2024-03-10T03:53:47Z |
| format | Article |
| id | doaj.art-0876d2d107fa4f20a1328231d3ad0aee |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T03:53:47Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-0876d2d107fa4f20a1328231d3ad0aee2023-11-23T10:58:12ZengMDPI AGFoods2304-81582022-05-011110137310.3390/foods11101373Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat ProteinSimeng Wang0Xianmeng Xu1Shunmin Wang2Junzhen Wang3Wenping Peng4College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaCollege of Biological and Food Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaCollege of Biological and Food Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaXichang Institute of Agricultural Science, Liangshan Yi People Autonomous Prefecture, Xichang 615000, ChinaCollege of Biological and Food Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaTartary 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 (<i>p</i> < 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 (<i>p</i> < 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.https://www.mdpi.com/2304-8158/11/10/1373microwave pretreatmentgerminationTartary buckwheat proteinfunctional propertiesantioxidant activities |
| spellingShingle | Simeng Wang Xianmeng Xu Shunmin Wang Junzhen Wang Wenping Peng Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein Foods microwave pretreatment germination Tartary buckwheat protein functional properties antioxidant activities |
| title | Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein |
| title_full | Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein |
| title_fullStr | Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein |
| title_full_unstemmed | Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein |
| title_short | Effects of Microwave Treatment on Structure, Functional Properties and Antioxidant Activities of Germinated Tartary Buckwheat Protein |
| title_sort | effects of microwave treatment on structure functional properties and antioxidant activities of germinated tartary buckwheat protein |
| topic | microwave pretreatment germination Tartary buckwheat protein functional properties antioxidant activities |
| url | https://www.mdpi.com/2304-8158/11/10/1373 |
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