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Nan YD, Mu BD, Ge CX, Chen SQ, Cui MX, Li HM, Zhao CC, Wang J, Piao CX, Li GH. Exploring the novel antioxidant peptides in low-salt dry-cured ham: Preparation, purification, identification and molecular docking. Food Chem 2024; 446:138697. [PMID: 38402773 DOI: 10.1016/j.foodchem.2024.138697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 02/27/2024]
Abstract
Dry-cured ham is important source of bioactive peptides. In this study, the antioxidant activities of peptides and components from low and fully salted dry-cured hams were compared by peptidomics. And novel antioxidant peptides were identified and characterized. The results showed that the peptides (<3 KDa) extracted from low-salt dry-cured ham had higher antioxidant activity. Therefore, the antioxidant peptides in low-salt dry-cured ham were further characterized and the mechanism of their antioxidant activity was investigated. From the five candidate peptides selected, we found DWPDARGIWHND (DD12) to be highly stable, non-sensitizing, and non-toxic with the highest free radical scavenging activity. Molecular docking predicted that DD12 interacted with Keap1 through hydrogen-bond formation and hydrophobic interactions, suggesting that DD12 had good cellular antioxidant activity. DD12 peptide can bind to DPPH• and ABTS•+, resulting in strong free radical scavenging activity. Our findings support the development and application of natural antioxidant peptides in dry-cured ham.
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Affiliation(s)
- Ying-Dao Nan
- Integration Science College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China.
| | - Bai-de Mu
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Chang-Xin Ge
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Si-Qi Chen
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Ming-Xun Cui
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Hong-Mei Li
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Chang-Cheng Zhao
- Life Sciences College, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Juan Wang
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China
| | - Chun-Xiang Piao
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China.
| | - Guan-Hao Li
- Agricultural College, Yanbian University, Yanji, Jilin 133000, China; Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Key Innovation Laboratory for Deep and Intensive Processing of Yanbian High Quality Beef, Ministry of Agriculture and Rural Affairs, Integration Science College, Agricultural College, Yanbian University, Yanji, Jilin Province 133000, China.
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